[frog] 01/04: New upstream version 0.13.7

Maarten van Gompel proycon-guest at moszumanska.debian.org
Mon Jan 23 15:20:17 UTC 2017


This is an automated email from the git hooks/post-receive script.

proycon-guest pushed a commit to branch master
in repository frog.

commit bf5a7620af497f838b05e16f1d663b6a32bb09c7
Author: proycon <proycon at anaproy.nl>
Date:   Mon Jan 23 16:15:57 2017 +0100

    New upstream version 0.13.7
---
 ChangeLog                     |  73 ++++--
 Makefile.in                   |   9 +-
 README                        |   4 +-
 config.guess                  |  38 +--
 config.sub                    |  26 +-
 configure                     | 534 +++++++++++++++++++++++++++---------------
 configure.ac                  |   6 +-
 docs/Makefile.in              |   1 -
 docs/mbma.1                   |   2 +-
 include/Makefile.in           |   1 -
 include/frog/Makefile.in      |   1 -
 include/frog/pos_tagger_mod.h |   2 +-
 install-sh                    |  23 +-
 ltmain.sh                     |  37 ++-
 m4/Makefile.in                |   1 -
 m4/ax_pthread.m4              | 385 +++++++++++++++++++++---------
 m4/libtool.m4                 |  27 +--
 m4/ltsugar.m4                 |   7 +-
 m4/lt~obsolete.m4             |   7 +-
 m4/pkg.m4                     | 217 +++++++++++------
 src/Makefile.am               |   2 +-
 src/Makefile.in               |   3 +-
 src/pos_tagger_mod.cxx        |  22 +-
 tests/Makefile.in             |   1 -
 24 files changed, 889 insertions(+), 540 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7c4df7b..be384cf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,33 @@
+2017-01-23  Maarten van Gompel <proycon at anaproy.nl>
+
+	* README.md: minor readme update
+
+2017-01-23  Maarten van Gompel <proycon at anaproy.nl>
+
+	* configure.ac: updated frogdata and ucto dependencies
+
+2017-01-23  Ko van der Sloot <K.vanderSloot at let.ru.nl>
+
+	* src/Makefile.am: look for datafiles in $PREFIX/share/frog
+
+2017-01-09  Ko van der Sloot <K.vanderSloot at let.ru.nl>
+
+	* src/Parser.cxx: ai, reverted a brainfarth
+
+2017-01-09  Ko van der Sloot <K.vanderSloot at let.ru.nl>
+
+	* include/frog/pos_tagger_mod.h, src/Parser.cxx,
+	src/pos_tagger_mod.cxx: added code to include an extra feature in
+	the POS tag. But outcommented the real usage
+
+2017-01-06  Maarten van Gompel <proycon at anaproy.nl>
+
+	* docs/mbma.1: fixed spelling error in manpage
+
+2017-01-05  Ko van der Sloot <K.vanderSloot at let.ru.nl>
+
+	* configure.ac: bump version after release
+
 2017-01-05  Ko van der Sloot <K.vanderSloot at let.ru.nl>
 
 	* NEWS: typo
@@ -660,7 +690,7 @@
 
 2016-02-17  Maarten van Gompel <proycon at anaproy.nl>
 
-	* README, README.md, bootstrap.sh: Converted README to markdown,
+	* README => README.md, bootstrap.sh: Converted README to markdown,
 	added badges
 
 2016-02-16  Ko van der Sloot <K.vanderSloot at let.ru.nl>
@@ -2450,7 +2480,7 @@
 
 2013-10-17  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* bootstrap, bootstrap.sh, configure.ac: modernized git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@16619
+	* bootstrap => bootstrap.sh, configure.ac: modernized git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@16619
 	12f355fe-0486-481a-ad91-c297ab22b4e3
 
 2013-10-02  mvgompel <mvgompel at 12f355fe-0486-481a-ad91-c297ab22b4e3>
@@ -3332,14 +3362,14 @@
 	config/ner.data.known.ddwdwfWawawaa,
 	config/ner.data.known.ddwdwfWawawaa.wgt, config/ner.data.settings,
 	config/ner.data.top1000, config/ner.data.top500,
-	config/ner.data.unknown.chnppddwdwFawawaasss,
-	config/ner.data.unknown.chnppddwdwFawawasss: updating the
-	replacement of the NER config files git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14431
+	config/{ner.data.unknown.chnppddwdwFawawasss =>
+	ner.data.unknown.chnppddwdwFawawaasss}: updating the replacement of
+	the NER config files git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14431
 	12f355fe-0486-481a-ad91-c297ab22b4e3
 
 2012-03-08  antalb <antalb at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* config/ner.data.10paxes, config/ner.data.5paxes,
+	* config/{ner.data.5paxes => ner.data.10paxes},
 	config/ner.data.known.dddwfWawa,
 	config/ner.data.known.dddwfWawa.wgt,
 	config/ner.data.known.ddwdwfWawaa, config/ner.data.settings,
@@ -3564,7 +3594,7 @@
 
 2012-02-09  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* src/Makefile.am, src/frog-dp-update, src/frog-dp-update.sh: make
+	* src/Makefile.am, src/{frog-dp-update.sh => frog-dp-update}: make
 	debianista's happy git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14232
 	12f355fe-0486-481a-ad91-c297ab22b4e3
 
@@ -3633,7 +3663,7 @@
 
 2012-02-07  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* src/Makefile.am, src/frog-dp-update.sh, src/frog-update.sh: 
+	* src/Makefile.am, src/{frog-update.sh => frog-dp-update.sh}: 
 	renamed the script git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14208
 	12f355fe-0486-481a-ad91-c297ab22b4e3
 
@@ -3672,7 +3702,7 @@
 
 2012-02-06  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* config/Makefile.am, config/frog.cfg, config/small-frog.cfg,
+	* config/Makefile.am, config/{frog.cfg => small-frog.cfg},
 	src/Frog.cxx: attempt to make it smart.  frog installs together with
 	small-frog.cfg.  Whenever a frog.cfg is installed, or otherwise
 	added, that will take precedence.  git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14198
@@ -3700,17 +3730,12 @@
 
 2012-02-06  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* DPconfig/Frog.mbdp.1.0.dir.ibase,
-	DPconfig/Frog.mbdp.1.0.dir.ibase.wgt,
-	DPconfig/Frog.mbdp.1.0.pairs.sampled.ibase,
-	DPconfig/Frog.mbdp.1.0.pairs.sampled.ibase.wgt,
-	DPconfig/Frog.mbdp.1.0.rels.ibase,
-	DPconfig/Frog.mbdp.1.0.rels.ibase.wgt,
-	config/Frog.mbdp.1.0.dir.ibase, config/Frog.mbdp.1.0.dir.ibase.wgt,
-	config/Frog.mbdp.1.0.pairs.sampled.ibase,
-	config/Frog.mbdp.1.0.pairs.sampled.ibase.wgt,
-	config/Frog.mbdp.1.0.rels.ibase,
-	config/Frog.mbdp.1.0.rels.ibase.wgt, config/Makefile.am,
+	* {config => DPconfig}/Frog.mbdp.1.0.dir.ibase, {config =>
+	DPconfig}/Frog.mbdp.1.0.dir.ibase.wgt, {config =>
+	DPconfig}/Frog.mbdp.1.0.pairs.sampled.ibase, {config =>
+	DPconfig}/Frog.mbdp.1.0.pairs.sampled.ibase.wgt, {config =>
+	DPconfig}/Frog.mbdp.1.0.rels.ibase, {config =>
+	DPconfig}/Frog.mbdp.1.0.rels.ibase.wgt, config/Makefile.am,
 	config/frog.cfg: moved DP files to own dir.  No longer install or
 	package those files.  git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@14192
 	12f355fe-0486-481a-ad91-c297ab22b4e3
@@ -4227,9 +4252,9 @@
 
 2011-11-28  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
-	* include/frog/Makefile.am, include/frog/cgn_tagger_mod.h,
-	include/frog/tagger_mod.h, src/Frog.cxx, src/Makefile.am,
-	src/cgn_tagger_mod.cxx, src/tagger_mod.cxx: renamed tagger+mod to
+	* include/frog/Makefile.am, include/frog/{tagger_mod.h =>
+	cgn_tagger_mod.h}, src/Frog.cxx, src/Makefile.am,
+	src/{tagger_mod.cxx => cgn_tagger_mod.cxx}: renamed tagger+mod to
 	cgn_tagger_mod git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@13614
 	12f355fe-0486-481a-ad91-c297ab22b4e3
 
@@ -4351,7 +4376,7 @@
 2011-11-03  sloot <sloot at 12f355fe-0486-481a-ad91-c297ab22b4e3>
 
 	* Makefile.am, configure.ac, src/Frog.cxx, src/Makefile.am,
-	src/tst.sh, test.txt, tests/Makefile.am, tests/test.txt,
+	src/tst.sh, tests/Makefile.am, test.txt => tests/test.txt,
 	tests/tst.ok: added a 'make check' / 'make distcheck' target Frog
 	now works with both Mbt 3.2.6 and higer versions git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@13516
 	12f355fe-0486-481a-ad91-c297ab22b4e3
diff --git a/Makefile.in b/Makefile.in
index 3c70329..8bf0929 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -376,7 +376,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
@@ -652,7 +651,7 @@ distdir: $(DISTFILES)
 	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
 	|| chmod -R a+r "$(distdir)"
 dist-gzip: distdir
-	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	tardir=$(distdir) && $(am__tar) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).tar.gz
 	$(am__post_remove_distdir)
 
 dist-bzip2: distdir
@@ -678,7 +677,7 @@ dist-shar: distdir
 	@echo WARNING: "Support for shar distribution archives is" \
 	               "deprecated." >&2
 	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
-	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	shar $(distdir) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).shar.gz
 	$(am__post_remove_distdir)
 
 dist-zip: distdir
@@ -696,7 +695,7 @@ dist dist-all:
 distcheck: dist
 	case '$(DIST_ARCHIVES)' in \
 	*.tar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).tar.gz | $(am__untar) ;;\
 	*.tar.bz2*) \
 	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
 	*.tar.lz*) \
@@ -706,7 +705,7 @@ distcheck: dist
 	*.tar.Z*) \
 	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
 	*.shar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
 	esac
diff --git a/README b/README
index 6ad2495..1acc9f9 100644
--- a/README
+++ b/README
@@ -4,7 +4,7 @@
 Frog - A Tagger-Lemmatizer-Morphological-Analyzer-Dependency-Parser for Dutch
 ==============================================================================
 
-    Copyright 2006-2016
+    Copyright 2006-2017
     Bertjan Busser, Antal van den Bosch,  Ko van der Sloot, Maarten van Gompel
 
     Centre for Language and Speech Technology, Radboud University Nijmegen
@@ -72,9 +72,11 @@ To be able to succesfully build Frog from source instead, you need the following
 - libicu-dev
 - [ticcutils](https://github.com/LanguageMachines/ticcutils)
 - [libfolia](https://github.com/LanguageMachines/libfolia)
+- [uctodata](https://github.com/LanguageMachines/uctodata)
 - [ucto](https://github.com/LanguageMachines/ucto)
 - [timbl](https://github.com/LanguageMachines/timbl)
 - [mbt](https://github.com/LanguageMachines/mbt)
+- [frogdata](https://github.com/LanguageMachines/frogdata)
 
 The data for Frog is packaged seperately and needs to be installed prior to installing frog:
 - [frogdata](https://github.com/LanguageMachines/frogdata)
diff --git a/config.guess b/config.guess
index 1659250..6c32c86 100755
--- a/config.guess
+++ b/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2015 Free Software Foundation, Inc.
+#   Copyright 1992-2014 Free Software Foundation, Inc.
 
-timestamp='2015-08-20'
+timestamp='2014-11-04'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2015 Free Software Foundation, Inc.
+Copyright 1992-2014 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -168,27 +168,20 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# Note: NetBSD doesn't particularly care about the vendor
 	# portion of the name.  We always set it to "unknown".
 	sysctl="sysctl -n hw.machine_arch"
-	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
-	    /sbin/$sysctl 2>/dev/null || \
-	    /usr/sbin/$sysctl 2>/dev/null || \
-	    echo unknown)`
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
 	case "${UNAME_MACHINE_ARCH}" in
 	    armeb) machine=armeb-unknown ;;
 	    arm*) machine=arm-unknown ;;
 	    sh3el) machine=shl-unknown ;;
 	    sh3eb) machine=sh-unknown ;;
 	    sh5el) machine=sh5le-unknown ;;
-	    earmv*)
-		arch=`echo ${UNAME_MACHINE_ARCH} | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
-		endian=`echo ${UNAME_MACHINE_ARCH} | sed -ne 's,^.*\(eb\)$,\1,p'`
-		machine=${arch}${endian}-unknown
-		;;
 	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
 	esac
 	# The Operating System including object format, if it has switched
 	# to ELF recently, or will in the future.
 	case "${UNAME_MACHINE_ARCH}" in
-	    arm*|earm*|i386|m68k|ns32k|sh3*|sparc|vax)
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
 			| grep -q __ELF__
@@ -204,13 +197,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		os=netbsd
 		;;
 	esac
-	# Determine ABI tags.
-	case "${UNAME_MACHINE_ARCH}" in
-	    earm*)
-		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
-		abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
-		;;
-	esac
 	# The OS release
 	# Debian GNU/NetBSD machines have a different userland, and
 	# thus, need a distinct triplet. However, they do not need
@@ -221,13 +207,13 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		release='-gnu'
 		;;
 	    *)
-		release=`echo ${UNAME_RELEASE} | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
 		;;
 	esac
 	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
 	# contains redundant information, the shorter form:
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-	echo "${machine}-${os}${release}${abi}"
+	echo "${machine}-${os}${release}"
 	exit ;;
     *:Bitrig:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
@@ -249,9 +235,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:MirBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
 	exit ;;
-    *:Sortix:*:*)
-	echo ${UNAME_MACHINE}-unknown-sortix
-	exit ;;
     alpha:OSF1:*:*)
 	case $UNAME_RELEASE in
 	*4.0)
@@ -950,9 +933,6 @@ EOF
     crisv32:Linux:*:*)
 	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
 	exit ;;
-    e2k:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
     frv:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
@@ -1041,7 +1021,7 @@ EOF
 	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
 	exit ;;
     x86_64:Linux:*:*)
-	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     xtensa*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
diff --git a/config.sub b/config.sub
index 1acc966..7ffe373 100755
--- a/config.sub
+++ b/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2015 Free Software Foundation, Inc.
+#   Copyright 1992-2014 Free Software Foundation, Inc.
 
-timestamp='2015-08-20'
+timestamp='2014-12-03'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -68,7 +68,7 @@ Report bugs and patches to <config-patches at gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2015 Free Software Foundation, Inc.
+Copyright 1992-2014 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -117,7 +117,7 @@ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
   linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
   kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
@@ -255,13 +255,12 @@ case $basic_machine in
 	| arc | arceb \
 	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
 	| avr | avr32 \
-	| ba \
 	| be32 | be64 \
 	| bfin \
 	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| e2k | epiphany \
-	| fido | fr30 | frv | ft32 \
+	| epiphany \
+	| fido | fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
 	| i370 | i860 | i960 | ia64 \
@@ -306,7 +305,7 @@ case $basic_machine in
 	| riscv32 | riscv64 \
 	| rl78 | rx \
 	| score \
-	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
@@ -377,13 +376,12 @@ case $basic_machine in
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
-	| ba-* \
 	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
 	| c8051-* | clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
-	| e2k-* | elxsi-* \
+	| elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
@@ -430,13 +428,12 @@ case $basic_machine in
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
 	| pyramid-* \
-	| riscv32-* | riscv64-* \
 	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
 	| tahoe-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
 	| tile*-* \
@@ -521,9 +518,6 @@ case $basic_machine in
 		basic_machine=i386-pc
 		os=-aros
 		;;
-        asmjs)
-		basic_machine=asmjs-unknown
-		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -1379,7 +1373,7 @@ case $os in
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
 	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* | -cloudabi* | -sortix* \
+	      | -aos* | -aros* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
diff --git a/configure b/configure
index 3645dd9..ec58e35 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for frog 0.13.6.
+# Generated by GNU Autoconf 2.69 for frog 0.13.7.
 #
 # Report bugs to <lamasoftware at science.ru.nl>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='frog'
 PACKAGE_TARNAME='frog'
-PACKAGE_VERSION='0.13.6'
-PACKAGE_STRING='frog 0.13.6'
+PACKAGE_VERSION='0.13.7'
+PACKAGE_STRING='frog 0.13.7'
 PACKAGE_BUGREPORT='lamasoftware at science.ru.nl'
 PACKAGE_URL=''
 
@@ -769,7 +769,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -879,7 +878,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1132,15 +1130,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1278,7 +1267,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir runstatedir
+		libdir localedir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1391,7 +1380,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures frog 0.13.6 to adapt to many kinds of systems.
+\`configure' configures frog 0.13.7 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1431,7 +1420,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -1462,7 +1450,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of frog 0.13.6:";;
+     short | recursive ) echo "Configuration of frog 0.13.7:";;
    esac
   cat <<\_ACEOF
 
@@ -1607,7 +1595,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-frog configure 0.13.6
+frog configure 0.13.7
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2260,7 +2248,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by frog $as_me 0.13.6, which was
+It was created by frog $as_me 0.13.7, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -3123,7 +3111,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='frog'
- VERSION='0.13.6'
+ VERSION='0.13.7'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -5968,7 +5956,7 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-netbsd* | netbsdelf*-gnu)
+netbsd*)
   if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
     lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
   else
@@ -9672,9 +9660,6 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
   openbsd* | bitrig*)
     with_gnu_ld=no
     ;;
-  linux* | k*bsd*-gnu | gnu*)
-    link_all_deplibs=no
-    ;;
   esac
 
   ld_shlibs=yes
@@ -9929,7 +9914,7 @@ _LT_EOF
       fi
       ;;
 
-    netbsd* | netbsdelf*-gnu)
+    netbsd*)
       if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
 	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 	wlarc=
@@ -10599,7 +10584,6 @@ $as_echo "$lt_cv_irix_exported_symbol" >&6; }
 	if test yes = "$lt_cv_irix_exported_symbol"; then
           archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
 	fi
-	link_all_deplibs=no
       else
 	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
 	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
@@ -10621,7 +10605,7 @@ $as_echo "$lt_cv_irix_exported_symbol" >&6; }
       esac
       ;;
 
-    netbsd* | netbsdelf*-gnu)
+    netbsd*)
       if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
 	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
       else
@@ -11736,18 +11720,6 @@ fi
   dynamic_linker='GNU/Linux ld.so'
   ;;
 
-netbsdelf*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='NetBSD ld.elf_so'
-  ;;
-
 netbsd*)
   version_type=sunos
   need_lib_prefix=no
@@ -14642,7 +14614,7 @@ lt_prog_compiler_static_CXX=
 	    ;;
 	esac
 	;;
-      netbsd* | netbsdelf*-gnu)
+      netbsd*)
 	;;
       *qnx* | *nto*)
         # QNX uses GNU C++, but need to define -shared option too, otherwise
@@ -15017,9 +14989,6 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
       ;;
     esac
     ;;
-  linux* | k*bsd*-gnu | gnu*)
-    link_all_deplibs_CXX=no
-    ;;
   *)
     export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
     ;;
@@ -15713,18 +15682,6 @@ fi
   dynamic_linker='GNU/Linux ld.so'
   ;;
 
-netbsdelf*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='NetBSD ld.elf_so'
-  ;;
-
 netbsd*)
   version_type=sunos
   need_lib_prefix=no
@@ -16635,6 +16592,8 @@ done
 
 
 
+
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -16644,19 +16603,23 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ax_pthread_ok=no
 
 # We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on True64 or Sequent).
+# requires special compiler flags (e.g. on Tru64 or Sequent).
 # It gets checked for in the link test anyway.
 
 # First of all, check if the user has set any of the PTHREAD_LIBS,
 # etcetera environment variables, and if threads linking works using
 # them:
-if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
-        save_CFLAGS="$CFLAGS"
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+        ax_pthread_save_CC="$CC"
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
+        if test "x$PTHREAD_CC" != "x"; then :
+  CC="$PTHREAD_CC"
+fi
         CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        save_LIBS="$LIBS"
         LIBS="$PTHREAD_LIBS $LIBS"
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
-$as_echo_n "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; }
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5
+$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -16682,12 +16645,13 @@ rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
 $as_echo "$ax_pthread_ok" >&6; }
-        if test x"$ax_pthread_ok" = xno; then
+        if test "x$ax_pthread_ok" = "xno"; then
                 PTHREAD_LIBS=""
                 PTHREAD_CFLAGS=""
         fi
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CC="$ax_pthread_save_CC"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 fi
 
 # We must check for the threads library under a number of different
@@ -16700,7 +16664,7 @@ fi
 # which indicates that we try without any flags at all, and "pthread-config"
 # which is a program returning the flags for the Pth emulation library.
 
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
 
 # The ordering *is* (sometimes) important.  Some notes on the
 # individual items follow:
@@ -16709,82 +16673,257 @@ ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mt
 # none: in case threads are in libc; should be tried before -Kthread and
 #       other compiler flags to prevent continual compiler warnings
 # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+#           (Note: HP C rejects this with "bad form for `-t' option")
+# -pthreads: Solaris/gcc (Note: HP C also rejects)
 # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-#      doesn't hurt to check since this sometimes defines pthreads too;
-#      also defines -D_REENTRANT)
-#      ... -mt is also the pthreads flag for HP/aCC
+#      doesn't hurt to check since this sometimes defines pthreads and
+#      -D_REENTRANT too), HP C (must be checked before -lpthread, which
+#      is present but should not be used directly; and before -mthreads,
+#      because the compiler interprets this as "-mt" + "-hreads")
+# -mthreads: Mingw32/gcc, Lynx/gcc
 # pthread: Linux, etcetera
 # --thread-safe: KAI C++
 # pthread-config: use pthread-config program (for GNU Pth library)
 
-case ${host_os} in
+case $host_os in
+
+        freebsd*)
+
+        # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+        # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+
+        ax_pthread_flags="-kthread lthread $ax_pthread_flags"
+        ;;
+
+        hpux*)
+
+        # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+        # multi-threading and also sets -lpthread."
+
+        ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+        ;;
+
+        openedition*)
+
+        # IBM z/OS requires a feature-test macro to be defined in order to
+        # enable POSIX threads at all, so give the user a hint if this is
+        # not set. (We don't define these ourselves, as they can affect
+        # other portions of the system API in unpredictable ways.)
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#            if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+             AX_PTHREAD_ZOS_MISSING
+#            endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5
+$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;}
+fi
+rm -f conftest*
+
+        ;;
+
         solaris*)
 
         # On Solaris (at least, for some versions), libc contains stubbed
         # (non-functional) versions of the pthreads routines, so link-based
-        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
-        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
-        # a function called by this macro, so we could check for that, but
-        # who knows whether they'll stub that too in a future libc.)  So,
-        # we'll just look for -pthreads and -lpthread first:
+        # tests will erroneously succeed. (N.B.: The stubs are missing
+        # pthread_cleanup_push, or rather a function called by this macro,
+        # so we could check for that, but who knows whether they'll stub
+        # that too in a future libc.)  So we'll check first for the
+        # standard Solaris way of linking pthreads (-mt -lpthread).
+
+        ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags"
+        ;;
+esac
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
+
+if test "x$GCC" = "xyes"; then :
+  ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"
+fi
+
+# The presence of a feature test macro requesting re-entrant function
+# definitions is, on some systems, a strong hint that pthreads support is
+# correctly enabled
 
-        ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
+case $host_os in
+        darwin* | hpux* | linux* | osf* | solaris*)
+        ax_pthread_check_macro="_REENTRANT"
         ;;
 
-        darwin*)
-        ax_pthread_flags="-pthread $ax_pthread_flags"
+        aix*)
+        ax_pthread_check_macro="_THREAD_SAFE"
+        ;;
+
+        *)
+        ax_pthread_check_macro="--"
         ;;
 esac
+if test "x$ax_pthread_check_macro" = "x--"; then :
+  ax_pthread_check_cond=0
+else
+  ax_pthread_check_cond="!defined($ax_pthread_check_macro)"
+fi
 
-# Clang doesn't consider unrecognized options an error unless we specify
-# -Werror. We throw in some extra Clang-specific options to ensure that
-# this doesn't happen for GCC, which also accepts -Werror.
+# Are we compiling with Clang?
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler needs -Werror to reject unknown flags" >&5
-$as_echo_n "checking if compiler needs -Werror to reject unknown flags... " >&6; }
-save_CFLAGS="$CFLAGS"
-ax_pthread_extra_flags="-Werror"
-CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5
+$as_echo_n "checking whether $CC is Clang... " >&6; }
+if ${ax_cv_PTHREAD_CLANG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_CLANG=no
+     # Note that Autoconf sets GCC=yes for Clang as well as GCC
+     if test "x$GCC" = "xyes"; then
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-int foo(void);
-int
-main ()
-{
-foo()
-  ;
-  return 0;
-}
+/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+#            if defined(__clang__) && defined(__llvm__)
+             AX_PTHREAD_CC_IS_CLANG
+#            endif
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then :
+  ax_cv_PTHREAD_CLANG=yes
+fi
+rm -f conftest*
+
+     fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5
+$as_echo "$ax_cv_PTHREAD_CLANG" >&6; }
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+ax_pthread_clang_warning=no
+
+# Clang needs special handling, because older versions handle the -pthread
+# option in a rather... idiosyncratic way
+
+if test "x$ax_pthread_clang" = "xyes"; then
+
+        # Clang takes -pthread; it has never supported any other flag
+
+        # (Note 1: This will need to be revisited if a system that Clang
+        # supports has POSIX threads in a separate library.  This tends not
+        # to be the way of modern systems, but it's conceivable.)
+
+        # (Note 2: On some systems, notably Darwin, -pthread is not needed
+        # to get POSIX threads support; the API is always present and
+        # active.  We could reasonably leave PTHREAD_CFLAGS empty.  But
+        # -pthread does define _REENTRANT, and while the Darwin headers
+        # ignore this macro, third-party headers might not.)
+
+        PTHREAD_CFLAGS="-pthread"
+        PTHREAD_LIBS=
+
+        ax_pthread_ok=yes
+
+        # However, older versions of Clang make a point of warning the user
+        # that, in an invocation where only linking and no compilation is
+        # taking place, the -pthread option has no effect ("argument unused
+        # during compilation").  They expect -pthread to be passed in only
+        # when source code is being compiled.
+        #
+        # Problem is, this is at odds with the way Automake and most other
+        # C build frameworks function, which is that the same flags used in
+        # compilation (CFLAGS) are also used in linking.  Many systems
+        # supported by AX_PTHREAD require exactly this for POSIX threads
+        # support, and in fact it is often not straightforward to specify a
+        # flag that is used only in the compilation phase and not in
+        # linking.  Such a scenario is extremely rare in practice.
+        #
+        # Even though use of the -pthread flag in linking would only print
+        # a warning, this can be a nuisance for well-run software projects
+        # that build with -Werror.  So if the active version of Clang has
+        # this misfeature, we search for an option to squash it.
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5
+$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; }
+if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
-  ax_pthread_extra_flags=
-                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
+             # Create an alternate version of $ac_link that compiles and
+             # links in two steps (.c -> .o, .o -> exe) instead of one
+             # (.c -> exe), because the warning occurs only in the second
+             # step
+             ax_pthread_save_ac_link="$ac_link"
+             ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
+             ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
+             ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
+             ax_pthread_save_CFLAGS="$CFLAGS"
+             for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
+                if test "x$ax_pthread_try" = "xunknown"; then :
+  break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-CFLAGS="$save_CFLAGS"
+                CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
+                ac_link="$ax_pthread_save_ac_link"
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void){return 0;}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_link="$ax_pthread_2step_ac_link"
+                     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void){return 0;}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  break
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+             done
+             ac_link="$ax_pthread_save_ac_link"
+             CFLAGS="$ax_pthread_save_CFLAGS"
+             if test "x$ax_pthread_try" = "x"; then :
+  ax_pthread_try=no
+fi
+             ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5
+$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; }
 
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
+        case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
+                no | unknown) ;;
+                *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
+        esac
+
+fi # $ax_pthread_clang = yes
+
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
 
-        case $flag in
+        case $ax_pthread_try_flag in
                 none)
                 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
 $as_echo_n "checking whether pthreads work without any flags... " >&6; }
                 ;;
 
+                -mt,pthread)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5
+$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; }
+                PTHREAD_CFLAGS="-mt"
+                PTHREAD_LIBS="-lpthread"
+                ;;
+
                 -*)
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
-$as_echo_n "checking whether pthreads work with $flag... " >&6; }
-                PTHREAD_CFLAGS="$flag"
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $ax_pthread_try_flag" >&5
+$as_echo_n "checking whether pthreads work with $ax_pthread_try_flag... " >&6; }
+                PTHREAD_CFLAGS="$ax_pthread_try_flag"
                 ;;
 
                 pthread-config)
@@ -16826,22 +16965,24 @@ $as_echo "no" >&6; }
 fi
 
 
-                if test x"$ax_pthread_config" = xno; then continue; fi
+                if test "x$ax_pthread_config" = "xno"; then :
+  continue
+fi
                 PTHREAD_CFLAGS="`pthread-config --cflags`"
                 PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
                 ;;
 
                 *)
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5
-$as_echo_n "checking for the pthreads library -l$flag... " >&6; }
-                PTHREAD_LIBS="-l$flag"
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5
+$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; }
+                PTHREAD_LIBS="-l$ax_pthread_try_flag"
                 ;;
         esac
 
-        save_LIBS="$LIBS"
-        save_CFLAGS="$CFLAGS"
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
         LIBS="$PTHREAD_LIBS $LIBS"
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
 
         # Check for various functions.  We must include pthread.h,
         # since some functions may be macros.  (On the Sequent, we
@@ -16852,9 +16993,13 @@ $as_echo_n "checking for the pthreads library -l$flag... " >&6; }
         # pthread_cleanup_push because it is one of the few pthread
         # functions on Solaris that doesn't have a non-functional libc stub.
         # We try pthread_create on general principles.
+
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
+#                       if $ax_pthread_check_cond
+#                        error "$ax_pthread_check_macro must be defined"
+#                       endif
                         static void routine(void *a) { a = 0; }
                         static void *start_routine(void *a) { return a; }
 int
@@ -16876,14 +17021,14 @@ fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
 $as_echo "$ax_pthread_ok" >&6; }
-        if test "x$ax_pthread_ok" = xyes; then
-                break;
-        fi
+        if test "x$ax_pthread_ok" = "xyes"; then :
+  break
+fi
 
         PTHREAD_LIBS=""
         PTHREAD_CFLAGS=""
@@ -16891,72 +17036,80 @@ done
 fi
 
 # Various other checks:
-if test "x$ax_pthread_ok" = xyes; then
-        save_LIBS="$LIBS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-        save_CFLAGS="$CFLAGS"
+if test "x$ax_pthread_ok" = "xyes"; then
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
         CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
 
         # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
 $as_echo_n "checking for joinable pthread attribute... " >&6; }
-        attr_name=unknown
-        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+             for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
 main ()
 {
-int attr = $attr; return attr /* ; */
+int attr = $ax_pthread_attr; return attr /* ; */
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  attr_name=$attr; break
+  ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-        done
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
-$as_echo "$attr_name" >&6; }
-        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+             done
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5
+$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; }
+        if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
+               test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
+               test "x$ax_pthread_joinable_attr_defined" != "xyes"; then :
 
 cat >>confdefs.h <<_ACEOF
-#define PTHREAD_CREATE_JOINABLE $attr_name
+#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR
 _ACEOF
 
-        fi
+               ax_pthread_joinable_attr_defined=yes
 
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
-$as_echo_n "checking if more special flags are required for pthreads... " >&6; }
-        flag=no
-        case ${host_os} in
-            aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
-            osf* | hpux*) flag="-D_REENTRANT";;
-            solaris*)
-            if test "$GCC" = "yes"; then
-                flag="-D_REENTRANT"
-            else
-                # TODO: What about Clang on Solaris?
-                flag="-mt -D_REENTRANT"
-            fi
-            ;;
-        esac
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $flag" >&5
-$as_echo "$flag" >&6; }
-        if test "x$flag" != xno; then
-            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
-        fi
+fi
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5
+$as_echo_n "checking whether more special flags are required for pthreads... " >&6; }
+if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_SPECIAL_FLAGS=no
+             case $host_os in
+             solaris*)
+             ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+             ;;
+             esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5
+$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; }
+        if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+               test "x$ax_pthread_special_flags_added" != "xyes"; then :
+  PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+               ax_pthread_special_flags_added=yes
+fi
 
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5
 $as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; }
 if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
@@ -16978,23 +17131,26 @@ rm -f core conftest.err conftest.$ac_objext \
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5
 $as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; }
-        if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"; then :
+        if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+               test "x$ax_pthread_prio_inherit_defined" != "xyes"; then :
 
 $as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h
 
+               ax_pthread_prio_inherit_defined=yes
+
 fi
 
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 
         # More AIX lossage: compile with *_r variant
-        if test "x$GCC" != xyes; then
+        if test "x$GCC" != "xyes"; then
             case $host_os in
                 aix*)
                 case "x/$CC" in #(
   x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) :
     #handle absolute path differently from PATH based program lookup
-                   case "x$CC" in #(
+                     case "x$CC" in #(
   x/*) :
     if as_fn_executable_p ${CC}_r; then :
   PTHREAD_CC="${CC}_r"
@@ -17059,7 +17215,7 @@ test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
 
 
 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
+if test "x$ax_pthread_ok" = "xyes"; then
 
 $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
 
@@ -18131,12 +18287,12 @@ if test -n "$ucto_CFLAGS"; then
     pkg_cv_ucto_CFLAGS="$ucto_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ucto >= 0.9.4 \""; } >&5
-  ($PKG_CONFIG --exists --print-errors "ucto >= 0.9.4 ") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ucto >= 0.9.6 \""; } >&5
+  ($PKG_CONFIG --exists --print-errors "ucto >= 0.9.6 ") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ucto_CFLAGS=`$PKG_CONFIG --cflags "ucto >= 0.9.4 " 2>/dev/null`
+  pkg_cv_ucto_CFLAGS=`$PKG_CONFIG --cflags "ucto >= 0.9.6 " 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -18148,12 +18304,12 @@ if test -n "$ucto_LIBS"; then
     pkg_cv_ucto_LIBS="$ucto_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ucto >= 0.9.4 \""; } >&5
-  ($PKG_CONFIG --exists --print-errors "ucto >= 0.9.4 ") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ucto >= 0.9.6 \""; } >&5
+  ($PKG_CONFIG --exists --print-errors "ucto >= 0.9.6 ") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ucto_LIBS=`$PKG_CONFIG --libs "ucto >= 0.9.4 " 2>/dev/null`
+  pkg_cv_ucto_LIBS=`$PKG_CONFIG --libs "ucto >= 0.9.6 " 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -18174,14 +18330,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ucto_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ucto >= 0.9.4 " 2>&1`
+	        ucto_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ucto >= 0.9.6 " 2>&1`
         else
-	        ucto_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ucto >= 0.9.4 " 2>&1`
+	        ucto_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ucto >= 0.9.6 " 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ucto_PKG_ERRORS" >&5
 
-	as_fn_error $? "Package requirements (ucto >= 0.9.4 ) were not met:
+	as_fn_error $? "Package requirements (ucto >= 0.9.6 ) were not met:
 
 $ucto_PKG_ERRORS
 
@@ -18225,12 +18381,12 @@ if test -n "$frogdata_CFLAGS"; then
     pkg_cv_frogdata_CFLAGS="$frogdata_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"frogdata >= 0.9 \""; } >&5
-  ($PKG_CONFIG --exists --print-errors "frogdata >= 0.9 ") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"frogdata >= 0.13 \""; } >&5
+  ($PKG_CONFIG --exists --print-errors "frogdata >= 0.13 ") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_frogdata_CFLAGS=`$PKG_CONFIG --cflags "frogdata >= 0.9 " 2>/dev/null`
+  pkg_cv_frogdata_CFLAGS=`$PKG_CONFIG --cflags "frogdata >= 0.13 " 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -18242,12 +18398,12 @@ if test -n "$frogdata_LIBS"; then
     pkg_cv_frogdata_LIBS="$frogdata_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"frogdata >= 0.9 \""; } >&5
-  ($PKG_CONFIG --exists --print-errors "frogdata >= 0.9 ") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"frogdata >= 0.13 \""; } >&5
+  ($PKG_CONFIG --exists --print-errors "frogdata >= 0.13 ") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_frogdata_LIBS=`$PKG_CONFIG --libs "frogdata >= 0.9 " 2>/dev/null`
+  pkg_cv_frogdata_LIBS=`$PKG_CONFIG --libs "frogdata >= 0.13 " 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -18268,14 +18424,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        frogdata_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "frogdata >= 0.9 " 2>&1`
+	        frogdata_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "frogdata >= 0.13 " 2>&1`
         else
-	        frogdata_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "frogdata >= 0.9 " 2>&1`
+	        frogdata_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "frogdata >= 0.13 " 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$frogdata_PKG_ERRORS" >&5
 
-	as_fn_error $? "Package requirements (frogdata >= 0.9 ) were not met:
+	as_fn_error $? "Package requirements (frogdata >= 0.13 ) were not met:
 
 $frogdata_PKG_ERRORS
 
@@ -18845,7 +19001,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by frog $as_me 0.13.6, which was
+This file was extended by frog $as_me 0.13.7, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -18911,7 +19067,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-frog config.status 0.13.6
+frog config.status 0.13.7
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 8864edd..4559869 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT([frog], [0.13.6], [lamasoftware at science.ru.nl])
+AC_INIT([frog], [0.13.7], [lamasoftware at science.ru.nl])
 AM_INIT_AUTOMAKE
 AC_CONFIG_SRCDIR([configure.ac])
 AC_CONFIG_MACRO_DIR([m4])
@@ -139,11 +139,11 @@ AC_ARG_WITH(ucto,
        [  --with-ucto=DIR       use ucto installed in <DIR>],
        [PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$withval/lib/pkgconfig"],
        [PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$prefix/lib/pkgconfig"])
-PKG_CHECK_MODULES([ucto], [ucto >= 0.9.4] )
+PKG_CHECK_MODULES([ucto], [ucto >= 0.9.6] )
 CXXFLAGS="$CXXFLAGS $ucto_CFLAGS"
 LIBS="$ucto_LIBS $LIBS"
 
-PKG_CHECK_MODULES([frogdata], [frogdata >= 0.9] )
+PKG_CHECK_MODULES([frogdata], [frogdata >= 0.13] )
 #
 
 AC_OUTPUT([
diff --git a/docs/Makefile.in b/docs/Makefile.in
index 609ebf0..4fe49eb 100644
--- a/docs/Makefile.in
+++ b/docs/Makefile.in
@@ -293,7 +293,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
diff --git a/docs/mbma.1 b/docs/mbma.1
index 6d79e8c..db532da 100644
--- a/docs/mbma.1
+++ b/docs/mbma.1
@@ -2,7 +2,7 @@
 
 .SH NAME
 mbma - (Dutch) morphological analyzer
-.SH SYNOPSYS
+.SH SYNOPSIS
 mbma -t test-file
 
 .SH DESCRIPTION
diff --git a/include/Makefile.in b/include/Makefile.in
index 1655069..606d5f6 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -327,7 +327,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
diff --git a/include/frog/Makefile.in b/include/frog/Makefile.in
index ab235c1..47e48c2 100644
--- a/include/frog/Makefile.in
+++ b/include/frog/Makefile.in
@@ -311,7 +311,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
diff --git a/include/frog/pos_tagger_mod.h b/include/frog/pos_tagger_mod.h
index bfe294a..352fe2f 100644
--- a/include/frog/pos_tagger_mod.h
+++ b/include/frog/pos_tagger_mod.h
@@ -41,7 +41,7 @@ class POSTagger {
   virtual bool init( const TiCC::Configuration& );
   virtual void Classify( const std::vector<folia::Word *>& );
   void addDeclaration( folia::Document& ) const;
-  void addTag( folia::Word *, const std::string&, double );
+  void addTag( folia::Word *, const std::string&, double, bool );
   std::vector<Tagger::TagResult> tagLine( const std::string& );
   std::string getTagset() const { return tagset; };
   bool fill_map( const std::string&, std::map<std::string,std::string>& );
diff --git a/install-sh b/install-sh
index 59990a1..0b0fdcb 100755
--- a/install-sh
+++ b/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2014-09-12.12; # UTC
+scriptversion=2013-12-25.23; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -324,41 +324,34 @@ do
             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
             ;;
           *)
-            # $RANDOM is not portable (e.g. dash);  use it when possible to
-            # lower collision chance
             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-            trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
+            trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
 
-            # As "mkdir -p" follows symlinks and we work in /tmp possibly;  so
-            # create the $tmpdir first (and fail if unsuccessful) to make sure
-            # that nobody tries to guess the $tmpdir name.
             if (umask $mkdir_umask &&
-                $mkdirprog $mkdir_mode "$tmpdir" &&
-                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
             then
               if test -z "$dir_arg" || {
                    # Check for POSIX incompatibilities with -m.
                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
                    # other-writable bit of parent directory when it shouldn't.
                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-                   test_tmpdir="$tmpdir/a"
-                   ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+                   ls_ld_tmpdir=`ls -ld "$tmpdir"`
                    case $ls_ld_tmpdir in
                      d????-?r-*) different_mode=700;;
                      d????-?--*) different_mode=755;;
                      *) false;;
                    esac &&
-                   $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-                     ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+                   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+                     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
                    }
                  }
               then posix_mkdir=:
               fi
-              rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+              rmdir "$tmpdir/d" "$tmpdir"
             else
               # Remove any dirs left behind by ancient mkdir implementations.
-              rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+              rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
             fi
             trap '' 0;;
         esac;;
diff --git a/ltmain.sh b/ltmain.sh
index 147d758..0f0a2da 100644
--- a/ltmain.sh
+++ b/ltmain.sh
@@ -31,7 +31,7 @@
 
 PROGRAM=libtool
 PACKAGE=libtool
-VERSION="2.4.6 Debian-2.4.6-0.1"
+VERSION=2.4.6
 package_revision=2.4.6
 
 
@@ -2073,7 +2073,7 @@ include the following information:
        autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
 
 Report bugs to <bug-libtool at gnu.org>.
-GNU libtool home page: <http://www.gnu.org/s/libtool/>.
+GNU libtool home page: <http://www.gnu.org/software/libtool/>.
 General help using GNU software: <http://www.gnu.org/gethelp/>."
     exit 0
 }
@@ -7272,13 +7272,10 @@ func_mode_link ()
       # -tp=*                Portland pgcc target processor selection
       # --sysroot=*          for sysroot support
       # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
-      # -specs=*             GCC specs files
       # -stdlib=*            select c++ std lib with clang
-      # -fsanitize=*         Clang/GCC memory and address sanitizer
       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
-      -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
-      -specs=*|-fsanitize=*)
+      -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*)
         func_quote_for_eval "$arg"
 	arg=$func_quote_for_eval_result
         func_append compile_command " $arg"
@@ -7571,10 +7568,7 @@ func_mode_link ()
 	case $pass in
 	dlopen) libs=$dlfiles ;;
 	dlpreopen) libs=$dlprefiles ;;
-	link)
-	  libs="$deplibs %DEPLIBS%"
-	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
-	  ;;
+	link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
 	esac
       fi
       if test lib,dlpreopen = "$linkmode,$pass"; then
@@ -7893,19 +7887,19 @@ func_mode_link ()
 	    # It is a libtool convenience library, so add in its objects.
 	    func_append convenience " $ladir/$objdir/$old_library"
 	    func_append old_convenience " $ladir/$objdir/$old_library"
-	    tmp_libs=
-	    for deplib in $dependency_libs; do
-	      deplibs="$deplib $deplibs"
-	      if $opt_preserve_dup_deps; then
-		case "$tmp_libs " in
-		*" $deplib "*) func_append specialdeplibs " $deplib" ;;
-		esac
-	      fi
-	      func_append tmp_libs " $deplib"
-	    done
 	  elif test prog != "$linkmode" && test lib != "$linkmode"; then
 	    func_fatal_error "'$lib' is not a convenience library"
 	  fi
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    deplibs="$deplib $deplibs"
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done
 	  continue
 	fi # $pass = conv
 
@@ -8829,9 +8823,6 @@ func_mode_link ()
 	    revision=$number_minor
 	    lt_irix_increment=no
 	    ;;
-	  *)
-	    func_fatal_configuration "$modename: unknown library version type '$version_type'"
-	    ;;
 	  esac
 	  ;;
 	no)
diff --git a/m4/Makefile.in b/m4/Makefile.in
index 754c417..3937844 100644
--- a/m4/Makefile.in
+++ b/m4/Makefile.in
@@ -265,7 +265,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4
index d383ad5..4c4051e 100644
--- a/m4/ax_pthread.m4
+++ b/m4/ax_pthread.m4
@@ -19,10 +19,10 @@
 #   is necessary on AIX to use the special cc_r compiler alias.)
 #
 #   NOTE: You are assumed to not only compile your program with these flags,
-#   but also link it with them as well. e.g. you should link with
+#   but also to link with them as well. For example, you might link with
 #   $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
 #
-#   If you are only building threads programs, you may wish to use these
+#   If you are only building threaded programs, you may wish to use these
 #   variables in your default LIBS, CFLAGS, and CC:
 #
 #     LIBS="$PTHREAD_LIBS $LIBS"
@@ -30,8 +30,8 @@
 #     CC="$PTHREAD_CC"
 #
 #   In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
-#   has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
-#   (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+#   has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
+#   that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
 #
 #   Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
 #   PTHREAD_PRIO_INHERIT symbol is defined when compiling with
@@ -82,35 +82,40 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 21
+#serial 23
 
 AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
 AC_DEFUN([AX_PTHREAD], [
 AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_SED])
 AC_LANG_PUSH([C])
 ax_pthread_ok=no
 
 # We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on True64 or Sequent).
+# requires special compiler flags (e.g. on Tru64 or Sequent).
 # It gets checked for in the link test anyway.
 
 # First of all, check if the user has set any of the PTHREAD_LIBS,
 # etcetera environment variables, and if threads linking works using
 # them:
-if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
-        save_CFLAGS="$CFLAGS"
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+        ax_pthread_save_CC="$CC"
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
+        AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
         CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        save_LIBS="$LIBS"
         LIBS="$PTHREAD_LIBS $LIBS"
-        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
-        AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes])
+        AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
+        AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
         AC_MSG_RESULT([$ax_pthread_ok])
-        if test x"$ax_pthread_ok" = xno; then
+        if test "x$ax_pthread_ok" = "xno"; then
                 PTHREAD_LIBS=""
                 PTHREAD_CFLAGS=""
         fi
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CC="$ax_pthread_save_CC"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 fi
 
 # We must check for the threads library under a number of different
@@ -123,7 +128,7 @@ fi
 # which indicates that we try without any flags at all, and "pthread-config"
 # which is a program returning the flags for the Pth emulation library.
 
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
 
 # The ordering *is* (sometimes) important.  Some notes on the
 # individual items follow:
@@ -132,82 +137,225 @@ ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mt
 # none: in case threads are in libc; should be tried before -Kthread and
 #       other compiler flags to prevent continual compiler warnings
 # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+#           (Note: HP C rejects this with "bad form for `-t' option")
+# -pthreads: Solaris/gcc (Note: HP C also rejects)
 # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-#      doesn't hurt to check since this sometimes defines pthreads too;
-#      also defines -D_REENTRANT)
-#      ... -mt is also the pthreads flag for HP/aCC
+#      doesn't hurt to check since this sometimes defines pthreads and
+#      -D_REENTRANT too), HP C (must be checked before -lpthread, which
+#      is present but should not be used directly; and before -mthreads,
+#      because the compiler interprets this as "-mt" + "-hreads")
+# -mthreads: Mingw32/gcc, Lynx/gcc
 # pthread: Linux, etcetera
 # --thread-safe: KAI C++
 # pthread-config: use pthread-config program (for GNU Pth library)
 
-case ${host_os} in
+case $host_os in
+
+        freebsd*)
+
+        # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+        # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+
+        ax_pthread_flags="-kthread lthread $ax_pthread_flags"
+        ;;
+
+        hpux*)
+
+        # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+        # multi-threading and also sets -lpthread."
+
+        ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+        ;;
+
+        openedition*)
+
+        # IBM z/OS requires a feature-test macro to be defined in order to
+        # enable POSIX threads at all, so give the user a hint if this is
+        # not set. (We don't define these ourselves, as they can affect
+        # other portions of the system API in unpredictable ways.)
+
+        AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
+            [
+#            if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+             AX_PTHREAD_ZOS_MISSING
+#            endif
+            ],
+            [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
+        ;;
+
         solaris*)
 
         # On Solaris (at least, for some versions), libc contains stubbed
         # (non-functional) versions of the pthreads routines, so link-based
-        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
-        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
-        # a function called by this macro, so we could check for that, but
-        # who knows whether they'll stub that too in a future libc.)  So,
-        # we'll just look for -pthreads and -lpthread first:
+        # tests will erroneously succeed. (N.B.: The stubs are missing
+        # pthread_cleanup_push, or rather a function called by this macro,
+        # so we could check for that, but who knows whether they'll stub
+        # that too in a future libc.)  So we'll check first for the
+        # standard Solaris way of linking pthreads (-mt -lpthread).
+
+        ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags"
+        ;;
+esac
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
 
-        ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
+AS_IF([test "x$GCC" = "xyes"],
+      [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"])
+
+# The presence of a feature test macro requesting re-entrant function
+# definitions is, on some systems, a strong hint that pthreads support is
+# correctly enabled
+
+case $host_os in
+        darwin* | hpux* | linux* | osf* | solaris*)
+        ax_pthread_check_macro="_REENTRANT"
         ;;
 
-        darwin*)
-        ax_pthread_flags="-pthread $ax_pthread_flags"
+        aix*)
+        ax_pthread_check_macro="_THREAD_SAFE"
+        ;;
+
+        *)
+        ax_pthread_check_macro="--"
         ;;
 esac
+AS_IF([test "x$ax_pthread_check_macro" = "x--"],
+      [ax_pthread_check_cond=0],
+      [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
+
+# Are we compiling with Clang?
+
+AC_CACHE_CHECK([whether $CC is Clang],
+    [ax_cv_PTHREAD_CLANG],
+    [ax_cv_PTHREAD_CLANG=no
+     # Note that Autoconf sets GCC=yes for Clang as well as GCC
+     if test "x$GCC" = "xyes"; then
+        AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
+            [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+#            if defined(__clang__) && defined(__llvm__)
+             AX_PTHREAD_CC_IS_CLANG
+#            endif
+            ],
+            [ax_cv_PTHREAD_CLANG=yes])
+     fi
+    ])
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+ax_pthread_clang_warning=no
+
+# Clang needs special handling, because older versions handle the -pthread
+# option in a rather... idiosyncratic way
+
+if test "x$ax_pthread_clang" = "xyes"; then
+
+        # Clang takes -pthread; it has never supported any other flag
+
+        # (Note 1: This will need to be revisited if a system that Clang
+        # supports has POSIX threads in a separate library.  This tends not
+        # to be the way of modern systems, but it's conceivable.)
+
+        # (Note 2: On some systems, notably Darwin, -pthread is not needed
+        # to get POSIX threads support; the API is always present and
+        # active.  We could reasonably leave PTHREAD_CFLAGS empty.  But
+        # -pthread does define _REENTRANT, and while the Darwin headers
+        # ignore this macro, third-party headers might not.)
+
+        PTHREAD_CFLAGS="-pthread"
+        PTHREAD_LIBS=
+
+        ax_pthread_ok=yes
+
+        # However, older versions of Clang make a point of warning the user
+        # that, in an invocation where only linking and no compilation is
+        # taking place, the -pthread option has no effect ("argument unused
+        # during compilation").  They expect -pthread to be passed in only
+        # when source code is being compiled.
+        #
+        # Problem is, this is at odds with the way Automake and most other
+        # C build frameworks function, which is that the same flags used in
+        # compilation (CFLAGS) are also used in linking.  Many systems
+        # supported by AX_PTHREAD require exactly this for POSIX threads
+        # support, and in fact it is often not straightforward to specify a
+        # flag that is used only in the compilation phase and not in
+        # linking.  Such a scenario is extremely rare in practice.
+        #
+        # Even though use of the -pthread flag in linking would only print
+        # a warning, this can be a nuisance for well-run software projects
+        # that build with -Werror.  So if the active version of Clang has
+        # this misfeature, we search for an option to squash it.
+
+        AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
+            [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
+            [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
+             # Create an alternate version of $ac_link that compiles and
+             # links in two steps (.c -> .o, .o -> exe) instead of one
+             # (.c -> exe), because the warning occurs only in the second
+             # step
+             ax_pthread_save_ac_link="$ac_link"
+             ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
+             ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
+             ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
+             ax_pthread_save_CFLAGS="$CFLAGS"
+             for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
+                AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
+                CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
+                ac_link="$ax_pthread_save_ac_link"
+                AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+                    [ac_link="$ax_pthread_2step_ac_link"
+                     AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+                         [break])
+                    ])
+             done
+             ac_link="$ax_pthread_save_ac_link"
+             CFLAGS="$ax_pthread_save_CFLAGS"
+             AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
+             ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
+            ])
 
-# Clang doesn't consider unrecognized options an error unless we specify
-# -Werror. We throw in some extra Clang-specific options to ensure that
-# this doesn't happen for GCC, which also accepts -Werror.
+        case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
+                no | unknown) ;;
+                *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
+        esac
 
-AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
-save_CFLAGS="$CFLAGS"
-ax_pthread_extra_flags="-Werror"
-CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])],
-                  [AC_MSG_RESULT([yes])],
-                  [ax_pthread_extra_flags=
-                   AC_MSG_RESULT([no])])
-CFLAGS="$save_CFLAGS"
+fi # $ax_pthread_clang = yes
 
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
 
-        case $flag in
+        case $ax_pthread_try_flag in
                 none)
                 AC_MSG_CHECKING([whether pthreads work without any flags])
                 ;;
 
+                -mt,pthread)
+                AC_MSG_CHECKING([whether pthreads work with -mt -lpthread])
+                PTHREAD_CFLAGS="-mt"
+                PTHREAD_LIBS="-lpthread"
+                ;;
+
                 -*)
-                AC_MSG_CHECKING([whether pthreads work with $flag])
-                PTHREAD_CFLAGS="$flag"
+                AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
+                PTHREAD_CFLAGS="$ax_pthread_try_flag"
                 ;;
 
                 pthread-config)
                 AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
-                if test x"$ax_pthread_config" = xno; then continue; fi
+                AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
                 PTHREAD_CFLAGS="`pthread-config --cflags`"
                 PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
                 ;;
 
                 *)
-                AC_MSG_CHECKING([for the pthreads library -l$flag])
-                PTHREAD_LIBS="-l$flag"
+                AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
+                PTHREAD_LIBS="-l$ax_pthread_try_flag"
                 ;;
         esac
 
-        save_LIBS="$LIBS"
-        save_CFLAGS="$CFLAGS"
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
         LIBS="$PTHREAD_LIBS $LIBS"
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
 
         # Check for various functions.  We must include pthread.h,
         # since some functions may be macros.  (On the Sequent, we
@@ -218,7 +366,11 @@ for flag in $ax_pthread_flags; do
         # pthread_cleanup_push because it is one of the few pthread
         # functions on Solaris that doesn't have a non-functional libc stub.
         # We try pthread_create on general principles.
+
         AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
+#                       if $ax_pthread_check_cond
+#                        error "$ax_pthread_check_macro must be defined"
+#                       endif
                         static void routine(void *a) { a = 0; }
                         static void *start_routine(void *a) { return a; }],
                        [pthread_t th; pthread_attr_t attr;
@@ -227,16 +379,14 @@ for flag in $ax_pthread_flags; do
                         pthread_attr_init(&attr);
                         pthread_cleanup_push(routine, 0);
                         pthread_cleanup_pop(0) /* ; */])],
-                [ax_pthread_ok=yes],
-                [])
+            [ax_pthread_ok=yes],
+            [])
 
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 
         AC_MSG_RESULT([$ax_pthread_ok])
-        if test "x$ax_pthread_ok" = xyes; then
-                break;
-        fi
+        AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
 
         PTHREAD_LIBS=""
         PTHREAD_CFLAGS=""
@@ -244,71 +394,74 @@ done
 fi
 
 # Various other checks:
-if test "x$ax_pthread_ok" = xyes; then
-        save_LIBS="$LIBS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-        save_CFLAGS="$CFLAGS"
+if test "x$ax_pthread_ok" = "xyes"; then
+        ax_pthread_save_CFLAGS="$CFLAGS"
+        ax_pthread_save_LIBS="$LIBS"
         CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
 
         # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
-        AC_MSG_CHECKING([for joinable pthread attribute])
-        attr_name=unknown
-        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-            AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
-                           [int attr = $attr; return attr /* ; */])],
-                [attr_name=$attr; break],
-                [])
-        done
-        AC_MSG_RESULT([$attr_name])
-        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
-            AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name],
-                               [Define to necessary symbol if this constant
-                                uses a non-standard name on your system.])
-        fi
-
-        AC_MSG_CHECKING([if more special flags are required for pthreads])
-        flag=no
-        case ${host_os} in
-            aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
-            osf* | hpux*) flag="-D_REENTRANT";;
-            solaris*)
-            if test "$GCC" = "yes"; then
-                flag="-D_REENTRANT"
-            else
-                # TODO: What about Clang on Solaris?
-                flag="-mt -D_REENTRANT"
-            fi
-            ;;
-        esac
-        AC_MSG_RESULT([$flag])
-        if test "x$flag" != xno; then
-            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
-        fi
+        AC_CACHE_CHECK([for joinable pthread attribute],
+            [ax_cv_PTHREAD_JOINABLE_ATTR],
+            [ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+             for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+                 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
+                                                 [int attr = $ax_pthread_attr; return attr /* ; */])],
+                                [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
+                                [])
+             done
+            ])
+        AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
+               test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
+               test "x$ax_pthread_joinable_attr_defined" != "xyes"],
+              [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
+                                  [$ax_cv_PTHREAD_JOINABLE_ATTR],
+                                  [Define to necessary symbol if this constant
+                                   uses a non-standard name on your system.])
+               ax_pthread_joinable_attr_defined=yes
+              ])
+
+        AC_CACHE_CHECK([whether more special flags are required for pthreads],
+            [ax_cv_PTHREAD_SPECIAL_FLAGS],
+            [ax_cv_PTHREAD_SPECIAL_FLAGS=no
+             case $host_os in
+             solaris*)
+             ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+             ;;
+             esac
+            ])
+        AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+               test "x$ax_pthread_special_flags_added" != "xyes"],
+              [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+               ax_pthread_special_flags_added=yes])
 
         AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
-            [ax_cv_PTHREAD_PRIO_INHERIT], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
-                                                [[int i = PTHREAD_PRIO_INHERIT;]])],
-                    [ax_cv_PTHREAD_PRIO_INHERIT=yes],
-                    [ax_cv_PTHREAD_PRIO_INHERIT=no])
+            [ax_cv_PTHREAD_PRIO_INHERIT],
+            [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
+                                             [[int i = PTHREAD_PRIO_INHERIT;]])],
+                            [ax_cv_PTHREAD_PRIO_INHERIT=yes],
+                            [ax_cv_PTHREAD_PRIO_INHERIT=no])
             ])
-        AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
-            [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])])
+        AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+               test "x$ax_pthread_prio_inherit_defined" != "xyes"],
+              [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
+               ax_pthread_prio_inherit_defined=yes
+              ])
 
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+        CFLAGS="$ax_pthread_save_CFLAGS"
+        LIBS="$ax_pthread_save_LIBS"
 
         # More AIX lossage: compile with *_r variant
-        if test "x$GCC" != xyes; then
+        if test "x$GCC" != "xyes"; then
             case $host_os in
                 aix*)
                 AS_CASE(["x/$CC"],
-                  [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
-                  [#handle absolute path differently from PATH based program lookup
-                   AS_CASE(["x$CC"],
-                     [x/*],
-                     [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
-                     [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
+                    [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
+                    [#handle absolute path differently from PATH based program lookup
+                     AS_CASE(["x$CC"],
+                         [x/*],
+                         [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
+                         [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
                 ;;
             esac
         fi
@@ -321,7 +474,7 @@ AC_SUBST([PTHREAD_CFLAGS])
 AC_SUBST([PTHREAD_CC])
 
 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
+if test "x$ax_pthread_ok" = "xyes"; then
         ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
         :
 else
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 10ab284..a3bc337 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -2887,18 +2887,6 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   dynamic_linker='GNU/Linux ld.so'
   ;;
 
-netbsdelf*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='NetBSD ld.elf_so'
-  ;;
-
 netbsd*)
   version_type=sunos
   need_lib_prefix=no
@@ -3558,7 +3546,7 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-netbsd* | netbsdelf*-gnu)
+netbsd*)
   if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
     lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
   else
@@ -4436,7 +4424,7 @@ m4_if([$1], [CXX], [
 	    ;;
 	esac
 	;;
-      netbsd* | netbsdelf*-gnu)
+      netbsd*)
 	;;
       *qnx* | *nto*)
         # QNX uses GNU C++, but need to define -shared option too, otherwise
@@ -4948,9 +4936,6 @@ m4_if([$1], [CXX], [
       ;;
     esac
     ;;
-  linux* | k*bsd*-gnu | gnu*)
-    _LT_TAGVAR(link_all_deplibs, $1)=no
-    ;;
   *)
     _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
     ;;
@@ -5013,9 +4998,6 @@ dnl Note also adjust exclude_expsyms for C++ above.
   openbsd* | bitrig*)
     with_gnu_ld=no
     ;;
-  linux* | k*bsd*-gnu | gnu*)
-    _LT_TAGVAR(link_all_deplibs, $1)=no
-    ;;
   esac
 
   _LT_TAGVAR(ld_shlibs, $1)=yes
@@ -5270,7 +5252,7 @@ _LT_EOF
       fi
       ;;
 
-    netbsd* | netbsdelf*-gnu)
+    netbsd*)
       if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
 	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 	wlarc=
@@ -5791,7 +5773,6 @@ _LT_EOF
 	if test yes = "$lt_cv_irix_exported_symbol"; then
           _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
 	fi
-	_LT_TAGVAR(link_all_deplibs, $1)=no
       else
 	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
 	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
@@ -5813,7 +5794,7 @@ _LT_EOF
       esac
       ;;
 
-    netbsd* | netbsdelf*-gnu)
+    netbsd*)
       if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
 	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
       else
diff --git a/m4/ltsugar.m4 b/m4/ltsugar.m4
index 9000a05..48bc934 100644
--- a/m4/ltsugar.m4
+++ b/m4/ltsugar.m4
@@ -1,6 +1,7 @@
 # ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
 #
-# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
 # Written by Gary V. Vaughan, 2004
 #
 # This file is free software; the Free Software Foundation gives
@@ -33,7 +34,7 @@ m4_define([_lt_join],
 # ------------
 # Manipulate m4 lists.
 # These macros are necessary as long as will still need to support
-# Autoconf-2.59 which quotes differently.
+# Autoconf-2.59, which quotes differently.
 m4_define([lt_car], [[$1]])
 m4_define([lt_cdr],
 [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
@@ -44,7 +45,7 @@ m4_define([lt_unquote], $1)
 
 # lt_append(MACRO-NAME, STRING, [SEPARATOR])
 # ------------------------------------------
-# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
 # Note that neither SEPARATOR nor STRING are expanded; they are appended
 # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
 # No SEPARATOR is output if MACRO-NAME was previously undefined (different
diff --git a/m4/lt~obsolete.m4 b/m4/lt~obsolete.m4
index c573da9..c6b26f8 100644
--- a/m4/lt~obsolete.m4
+++ b/m4/lt~obsolete.m4
@@ -1,6 +1,7 @@
 # lt~obsolete.m4 -- aclocal satisfying obsolete definitions.    -*-Autoconf-*-
 #
-#   Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
+#   Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
+#   Foundation, Inc.
 #   Written by Scott James Remnant, 2004.
 #
 # This file is free software; the Free Software Foundation gives
@@ -11,7 +12,7 @@
 
 # These exist entirely to fool aclocal when bootstrapping libtool.
 #
-# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
 # which have later been changed to m4_define as they aren't part of the
 # exported API, or moved to Autoconf or Automake where they belong.
 #
@@ -25,7 +26,7 @@
 # included after everything else.  This provides aclocal with the
 # AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
 # because those macros already exist, or will be overwritten later.
-# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
 #
 # Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
 # Yes, that means every name once taken will need to remain here until
diff --git a/m4/pkg.m4 b/m4/pkg.m4
index c5b26b5..82bea96 100644
--- a/m4/pkg.m4
+++ b/m4/pkg.m4
@@ -1,29 +1,60 @@
-# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
-# serial 1 (pkg-config-0.24)
-# 
-# Copyright © 2004 Scott James Remnant <scott at netsplit.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# PKG_PROG_PKG_CONFIG([MIN-VERSION])
-# ----------------------------------
+dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
+dnl serial 11 (pkg-config-0.29.1)
+dnl
+dnl Copyright © 2004 Scott James Remnant <scott at netsplit.com>.
+dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists at gmail.com>
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+dnl 02111-1307, USA.
+dnl
+dnl As a special exception to the GNU General Public License, if you
+dnl distribute this file as part of a program that contains a
+dnl configuration script generated by Autoconf, you may include it under
+dnl the same distribution terms that you use for the rest of that
+dnl program.
+
+dnl PKG_PREREQ(MIN-VERSION)
+dnl -----------------------
+dnl Since: 0.29
+dnl
+dnl Verify that the version of the pkg-config macros are at least
+dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
+dnl installed version of pkg-config, this checks the developer's version
+dnl of pkg.m4 when generating configure.
+dnl
+dnl To ensure that this macro is defined, also add:
+dnl m4_ifndef([PKG_PREREQ],
+dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
+dnl
+dnl See the "Since" comment for each macro you use to see what version
+dnl of the macros you require.
+m4_defun([PKG_PREREQ],
+[m4_define([PKG_MACROS_VERSION], [0.29.1])
+m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
+    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
+])dnl PKG_PREREQ
+
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
+dnl ----------------------------------
+dnl Since: 0.16
+dnl
+dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
+dnl first found in the path. Checks that the version of pkg-config found
+dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
+dnl used since that's the first version where most current features of
+dnl pkg-config existed.
 AC_DEFUN([PKG_PROG_PKG_CONFIG],
 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
@@ -45,18 +76,19 @@ if test -n "$PKG_CONFIG"; then
 		PKG_CONFIG=""
 	fi
 fi[]dnl
-])# PKG_PROG_PKG_CONFIG
-
-# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-#
-# Check to see whether a particular set of modules exists.  Similar
-# to PKG_CHECK_MODULES(), but does not set variables or print errors.
-#
-# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-# only at the first occurence in configure.ac, so if the first place
-# it's called might be skipped (such as if it is within an "if", you
-# have to call PKG_CHECK_EXISTS manually
-# --------------------------------------------------------------
+])dnl PKG_PROG_PKG_CONFIG
+
+dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------------------------------
+dnl Since: 0.18
+dnl
+dnl Check to see whether a particular set of modules exists. Similar to
+dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
+dnl
+dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+dnl only at the first occurence in configure.ac, so if the first place
+dnl it's called might be skipped (such as if it is within an "if", you
+dnl have to call PKG_CHECK_EXISTS manually
 AC_DEFUN([PKG_CHECK_EXISTS],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 if test -n "$PKG_CONFIG" && \
@@ -66,8 +98,10 @@ m4_ifvaln([$3], [else
   $3])dnl
 fi])
 
-# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
-# ---------------------------------------------
+dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+dnl ---------------------------------------------
+dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
+dnl pkg_failed based on the result.
 m4_define([_PKG_CONFIG],
 [if test -n "$$1"; then
     pkg_cv_[]$1="$$1"
@@ -79,10 +113,11 @@ m4_define([_PKG_CONFIG],
  else
     pkg_failed=untried
 fi[]dnl
-])# _PKG_CONFIG
+])dnl _PKG_CONFIG
 
-# _PKG_SHORT_ERRORS_SUPPORTED
-# -----------------------------
+dnl _PKG_SHORT_ERRORS_SUPPORTED
+dnl ---------------------------
+dnl Internal check to see if pkg-config supports short errors.
 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
@@ -90,19 +125,17 @@ if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
 else
         _pkg_short_errors_supported=no
 fi[]dnl
-])# _PKG_SHORT_ERRORS_SUPPORTED
-
-
-# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
-# [ACTION-IF-NOT-FOUND])
-#
-#
-# Note that if there is a possibility the first call to
-# PKG_CHECK_MODULES might not happen, you should be sure to include an
-# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
-#
-#
-# --------------------------------------------------------------
+])dnl _PKG_SHORT_ERRORS_SUPPORTED
+
+
+dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl   [ACTION-IF-NOT-FOUND])
+dnl --------------------------------------------------------------
+dnl Since: 0.4.0
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
+dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
 AC_DEFUN([PKG_CHECK_MODULES],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
@@ -156,16 +189,40 @@ else
         AC_MSG_RESULT([yes])
 	$3
 fi[]dnl
-])# PKG_CHECK_MODULES
+])dnl PKG_CHECK_MODULES
+
+
+dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl   [ACTION-IF-NOT-FOUND])
+dnl ---------------------------------------------------------------------
+dnl Since: 0.29
+dnl
+dnl Checks for existence of MODULES and gathers its build flags with
+dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
+dnl and VARIABLE-PREFIX_LIBS from --libs.
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
+dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
+dnl configure.ac.
+AC_DEFUN([PKG_CHECK_MODULES_STATIC],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+_save_PKG_CONFIG=$PKG_CONFIG
+PKG_CONFIG="$PKG_CONFIG --static"
+PKG_CHECK_MODULES($@)
+PKG_CONFIG=$_save_PKG_CONFIG[]dnl
+])dnl PKG_CHECK_MODULES_STATIC
 
 
-# PKG_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable pkgconfigdir as the location where a module
-# should install pkg-config .pc files. By default the directory is
-# $libdir/pkgconfig, but the default can be changed by passing
-# DIRECTORY. The user can override through the --with-pkgconfigdir
-# parameter.
+dnl PKG_INSTALLDIR([DIRECTORY])
+dnl -------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable pkgconfigdir as the location where a module
+dnl should install pkg-config .pc files. By default the directory is
+dnl $libdir/pkgconfig, but the default can be changed by passing
+dnl DIRECTORY. The user can override through the --with-pkgconfigdir
+dnl parameter.
 AC_DEFUN([PKG_INSTALLDIR],
 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
 m4_pushdef([pkg_description],
@@ -176,16 +233,18 @@ AC_ARG_WITH([pkgconfigdir],
 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
 m4_popdef([pkg_default])
 m4_popdef([pkg_description])
-]) dnl PKG_INSTALLDIR
+])dnl PKG_INSTALLDIR
 
 
-# PKG_NOARCH_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable noarch_pkgconfigdir as the location where a
-# module should install arch-independent pkg-config .pc files. By
-# default the directory is $datadir/pkgconfig, but the default can be
-# changed by passing DIRECTORY. The user can override through the
-# --with-noarch-pkgconfigdir parameter.
+dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
+dnl --------------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable noarch_pkgconfigdir as the location where a
+dnl module should install arch-independent pkg-config .pc files. By
+dnl default the directory is $datadir/pkgconfig, but the default can be
+dnl changed by passing DIRECTORY. The user can override through the
+dnl --with-noarch-pkgconfigdir parameter.
 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
 m4_pushdef([pkg_description],
@@ -196,13 +255,15 @@ AC_ARG_WITH([noarch-pkgconfigdir],
 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
 m4_popdef([pkg_default])
 m4_popdef([pkg_description])
-]) dnl PKG_NOARCH_INSTALLDIR
+])dnl PKG_NOARCH_INSTALLDIR
 
 
-# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -------------------------------------------
-# Retrieves the value of the pkg-config variable for the given module.
+dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
+dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------
+dnl Since: 0.28
+dnl
+dnl Retrieves the value of the pkg-config variable for the given module.
 AC_DEFUN([PKG_CHECK_VAR],
 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
@@ -211,4 +272,4 @@ _PKG_CONFIG([$1], [variable="][$3]["], [$2])
 AS_VAR_COPY([$1], [pkg_cv_][$1])
 
 AS_VAR_IF([$1], [""], [$5], [$4])dnl
-])# PKG_CHECK_VAR
+])dnl PKG_CHECK_VAR
diff --git a/src/Makefile.am b/src/Makefile.am
index 4d0ac69..73ce53d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,5 @@
 AM_CPPFLAGS = -I at top_srcdir@/include
-AM_CXXFLAGS = -DSYSCONF_PATH=\"$(SYSCONFDIR)\" -std=c++0x # -Weffc++
+AM_CXXFLAGS = -DSYSCONF_PATH=\"$(datadir)\" -std=c++0x # -Weffc++
 bin_PROGRAMS = frog mbma mblem ner
 
 frog_SOURCES = Frog.cxx
diff --git a/src/Makefile.in b/src/Makefile.in
index b8b69a7..027c6aa 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -545,7 +545,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
@@ -561,7 +560,7 @@ top_srcdir = @top_srcdir@
 ucto_CFLAGS = @ucto_CFLAGS@
 ucto_LIBS = @ucto_LIBS@
 AM_CPPFLAGS = -I at top_srcdir@/include
-AM_CXXFLAGS = -DSYSCONF_PATH=\"$(SYSCONFDIR)\" -std=c++0x # -Weffc++
+AM_CXXFLAGS = -DSYSCONF_PATH=\"$(datadir)\" -std=c++0x # -Weffc++
 frog_SOURCES = Frog.cxx
 mbma_SOURCES = mbma_prog.cxx
 mblem_SOURCES = mblem_prog.cxx
diff --git a/src/pos_tagger_mod.cxx b/src/pos_tagger_mod.cxx
index eb50d6a..4776070 100644
--- a/src/pos_tagger_mod.cxx
+++ b/src/pos_tagger_mod.cxx
@@ -183,7 +183,10 @@ bool POSTagger::init( const Configuration& config ){
   return tagger->isInit();
 }
 
-void POSTagger::addTag( Word *word, const string& inputTag, double confidence ){
+void POSTagger::addTag( Word *word,
+			const string& inputTag,
+			double confidence,
+			bool /*known NOT USED yet*/ ){
   string pos_tag = inputTag;
   string ucto_class = word->cls();
   if ( debug ){
@@ -206,6 +209,18 @@ void POSTagger::addTag( Word *word, const string& inputTag, double confidence ){
   {
     word->addPosAnnotation( args );
   }
+  //  folia::FoliaElement *pos = 0;
+  //#pragma omp critical(foliaupdate)
+  //  {
+  //    pos = word->addPosAnnotation( args );
+  //  }
+  // if ( !known ){
+  //   args.clear();
+  //   args["class"] = "yes";
+  //   args["subset"] = "unknown_word";
+  //   folia::Feature *feat = new folia::Feature( args );
+  //   pos->append( feat );
+  // }
 }
 
 void POSTagger::addDeclaration( Document& doc ) const {
@@ -271,7 +286,10 @@ void POSTagger::Classify( const vector<Word*>& swords ){
       }
     }
     for ( size_t i=0; i < tagv.size(); ++i ){
-      addTag( swords[i], tagv[i].assignedTag(), tagv[i].confidence() );
+      addTag( swords[i],
+	      tagv[i].assignedTag(),
+	      tagv[i].confidence(),
+	      tagv[i].isKnown() );
     }
   }
 }
diff --git a/tests/Makefile.in b/tests/Makefile.in
index eb79c0c..1a431fb 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -265,7 +265,6 @@ pkgconfigpath = @pkgconfigpath@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/debian-science/packages/frog.git



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