[Pkg-gnupg-commit] [gpgme] 104/412: build: Add python autoconf macro.
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Thu Sep 22 21:26:25 UTC 2016
This is an automated email from the git hooks/post-receive script.
dkg pushed a commit to branch master
in repository gpgme.
commit 4711a1e181153a2395e5f523047595abd47965db
Author: Justus Winter <justus at gnupg.org>
Date: Tue May 17 16:34:39 2016 +0200
build: Add python autoconf macro.
* m4/ax_python_devel.m4: New file.
Signed-off-by: Justus Winter <justus at gnupg.org>
---
m4/ax_python_devel.m4 | 324 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 324 insertions(+)
diff --git a/m4/ax_python_devel.m4 b/m4/ax_python_devel.m4
new file mode 100644
index 0000000..59a2ff0
--- /dev/null
+++ b/m4/ax_python_devel.m4
@@ -0,0 +1,324 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_python_devel.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PYTHON_DEVEL([version])
+#
+# DESCRIPTION
+#
+# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it
+# in your configure.ac.
+#
+# This macro checks for Python and tries to get the include path to
+# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS)
+# output variables. It also exports $(PYTHON_EXTRA_LIBS) and
+# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
+#
+# You can search for some particular version of Python by passing a
+# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
+# note that you *have* to pass also an operator along with the version to
+# match, and pay special attention to the single quotes surrounding the
+# version number. Don't use "PYTHON_VERSION" for this: that environment
+# variable is declared as precious and thus reserved for the end-user.
+#
+# This macro should work for all versions of Python >= 2.1.0. As an end
+# user, you can disable the check for the python version by setting the
+# PYTHON_NOVERSIONCHECK environment variable to something else than the
+# empty string.
+#
+# If you need to use this macro for an older Python version, please
+# contact the authors. We're always open for feedback.
+#
+# LICENSE
+#
+# Copyright (c) 2009 Sebastian Huber <sebastian-huber at web.de>
+# Copyright (c) 2009 Alan W. Irwin
+# Copyright (c) 2009 Rafael Laboissiere <rafael at laboissiere.net>
+# Copyright (c) 2009 Andrew Collier
+# Copyright (c) 2009 Matteo Settenvini <matteo at member.fsf.org>
+# Copyright (c) 2009 Horst Knorr <hk_classes at knoda.org>
+# Copyright (c) 2013 Daniel Mullner <muellner at math.stanford.edu>
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 17
+
+AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
+AC_DEFUN([AX_PYTHON_DEVEL],[
+ #
+ # Allow the use of a (user set) custom python version
+ #
+ AC_ARG_VAR([PYTHON_VERSION],[The installed Python
+ version to use, for example '2.3'. This string
+ will be appended to the Python interpreter
+ canonical name.])
+
+ AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
+ if test -z "$PYTHON"; then
+ AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
+ PYTHON_VERSION=""
+ fi
+
+ #
+ # Check for a version of Python >= 2.1.0
+ #
+ AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
+ ac_supports_python_ver=`$PYTHON -c "import sys; \
+ ver = sys.version.split ()[[0]]; \
+ print (ver >= '2.1.0')"`
+ if test "$ac_supports_python_ver" != "True"; then
+ if test -z "$PYTHON_NOVERSIONCHECK"; then
+ AC_MSG_RESULT([no])
+ AC_MSG_FAILURE([
+This version of the AC@&t at _PYTHON_DEVEL macro
+doesn't work properly with versions of Python before
+2.1.0. You may need to re-run configure, setting the
+variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,
+PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
+Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
+to something else than an empty string.
+])
+ else
+ AC_MSG_RESULT([skip at user request])
+ fi
+ else
+ AC_MSG_RESULT([yes])
+ fi
+
+ #
+ # if the macro parameter ``version'' is set, honour it
+ #
+ if test -n "$1"; then
+ AC_MSG_CHECKING([for a version of Python $1])
+ ac_supports_python_ver=`$PYTHON -c "import sys; \
+ ver = sys.version.split ()[[0]]; \
+ print (ver $1)"`
+ if test "$ac_supports_python_ver" = "True"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([this package requires Python $1.
+If you have it installed, but it isn't the default Python
+interpreter in your system path, please pass the PYTHON_VERSION
+variable to configure. See ``configure --help'' for reference.
+])
+ PYTHON_VERSION=""
+ fi
+ fi
+
+ #
+ # Check if you have distutils, else fail
+ #
+ AC_MSG_CHECKING([for the distutils Python package])
+ ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
+ if test -z "$ac_distutils_result"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([cannot import Python module "distutils".
+Please check your Python installation. The error was:
+$ac_distutils_result])
+ PYTHON_VERSION=""
+ fi
+
+ #
+ # Check for Python include path
+ #
+ AC_MSG_CHECKING([for Python include path])
+ if test -z "$PYTHON_CPPFLAGS"; then
+ python_path=`$PYTHON -c "import distutils.sysconfig; \
+ print (distutils.sysconfig.get_python_inc ());"`
+ plat_python_path=`$PYTHON -c "import distutils.sysconfig; \
+ print (distutils.sysconfig.get_python_inc (plat_specific=1));"`
+ if test -n "${python_path}"; then
+ if test "${plat_python_path}" != "${python_path}"; then
+ python_path="-I$python_path -I$plat_python_path"
+ else
+ python_path="-I$python_path"
+ fi
+ fi
+ PYTHON_CPPFLAGS=$python_path
+ fi
+ AC_MSG_RESULT([$PYTHON_CPPFLAGS])
+ AC_SUBST([PYTHON_CPPFLAGS])
+
+ #
+ # Check for Python library path
+ #
+ AC_MSG_CHECKING([for Python library path])
+ if test -z "$PYTHON_LDFLAGS"; then
+ # (makes two attempts to ensure we've got a version number
+ # from the interpreter)
+ ac_python_version=`cat<<EOD | $PYTHON -
+
+# join all versioning strings, on some systems
+# major/minor numbers could be in different list elements
+from distutils.sysconfig import *
+e = get_config_var('VERSION')
+if e is not None:
+ print(e)
+EOD`
+
+ if test -z "$ac_python_version"; then
+ if test -n "$PYTHON_VERSION"; then
+ ac_python_version=$PYTHON_VERSION
+ else
+ ac_python_version=`$PYTHON -c "import sys; \
+ print (sys.version[[:3]])"`
+ fi
+ fi
+
+ # Make the versioning information available to the compiler
+ AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
+ [If available, contains the Python version number currently in use.])
+
+ # First, the library directory:
+ ac_python_libdir=`cat<<EOD | $PYTHON -
+
+# There should be only one
+import distutils.sysconfig
+e = distutils.sysconfig.get_config_var('LIBDIR')
+if e is not None:
+ print (e)
+EOD`
+
+ # Now, for the library:
+ ac_python_library=`cat<<EOD | $PYTHON -
+
+import distutils.sysconfig
+c = distutils.sysconfig.get_config_vars()
+if 'LDVERSION' in c:
+ print ('python'+c[['LDVERSION']])
+else:
+ print ('python'+c[['VERSION']])
+EOD`
+
+ # This small piece shamelessly adapted from PostgreSQL python macro;
+ # credits goes to momjian, I think. I'd like to put the right name
+ # in the credits, if someone can point me in the right direction... ?
+ #
+ if test -n "$ac_python_libdir" -a -n "$ac_python_library"
+ then
+ # use the official shared library
+ ac_python_library=`echo "$ac_python_library" | sed "s/^lib//"`
+ PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library"
+ else
+ # old way: use libpython from python_configdir
+ ac_python_libdir=`$PYTHON -c \
+ "from distutils.sysconfig import get_python_lib as f; \
+ import os; \
+ print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
+ PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version"
+ fi
+
+ if test -z "PYTHON_LDFLAGS"; then
+ AC_MSG_ERROR([
+ Cannot determine location of your Python DSO. Please check it was installed with
+ dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand.
+ ])
+ fi
+ fi
+ AC_MSG_RESULT([$PYTHON_LDFLAGS])
+ AC_SUBST([PYTHON_LDFLAGS])
+
+ #
+ # Check for site packages
+ #
+ AC_MSG_CHECKING([for Python site-packages path])
+ if test -z "$PYTHON_SITE_PKG"; then
+ PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
+ print (distutils.sysconfig.get_python_lib(0,0));"`
+ fi
+ AC_MSG_RESULT([$PYTHON_SITE_PKG])
+ AC_SUBST([PYTHON_SITE_PKG])
+
+ #
+ # libraries which must be linked in when embedding
+ #
+ AC_MSG_CHECKING(python extra libraries)
+ if test -z "$PYTHON_EXTRA_LIBS"; then
+ PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
+ conf = distutils.sysconfig.get_config_var; \
+ print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
+ fi
+ AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
+ AC_SUBST(PYTHON_EXTRA_LIBS)
+
+ #
+ # linking flags needed when embedding
+ #
+ AC_MSG_CHECKING(python extra linking flags)
+ if test -z "$PYTHON_EXTRA_LDFLAGS"; then
+ PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
+ conf = distutils.sysconfig.get_config_var; \
+ print (conf('LINKFORSHARED'))"`
+ fi
+ AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
+ AC_SUBST(PYTHON_EXTRA_LDFLAGS)
+
+ #
+ # final check to see if everything compiles alright
+ #
+ AC_MSG_CHECKING([consistency of all components of python development environment])
+ # save current global flags
+ ac_save_LIBS="$LIBS"
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ LIBS="$ac_save_LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS $PYTHON_EXTRA_LIBS"
+ CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
+ AC_LANG_PUSH([C])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <Python.h>]],
+ [[Py_Initialize();]])
+ ],[pythonexists=yes],[pythonexists=no])
+ AC_LANG_POP([C])
+ # turn back to default flags
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ LIBS="$ac_save_LIBS"
+
+ AC_MSG_RESULT([$pythonexists])
+
+ if test ! "x$pythonexists" = "xyes"; then
+ AC_MSG_FAILURE([
+ Could not link test program to Python. Maybe the main Python library has been
+ installed in some non-standard library path. If so, pass it to configure,
+ via the LDFLAGS environment variable.
+ Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
+ ============================================================================
+ ERROR!
+ You probably have to install the development version of the Python package
+ for your distribution. The exact name of this package varies among them.
+ ============================================================================
+ ])
+ PYTHON_VERSION=""
+ fi
+
+ #
+ # all done!
+ #
+])
--
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-gnupg/gpgme.git
More information about the Pkg-gnupg-commit
mailing list