[Pkg-gnupg-commit] [gpgme] 96/132: build: Add M4 macros for python.
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Wed Apr 26 01:01:33 UTC 2017
This is an automated email from the git hooks/post-receive script.
dkg pushed a commit to branch experimental
in repository gpgme.
commit 067da472f919e78c95a0a01b68e79a8b7dff173b
Author: Justus Winter <justus at g10code.com>
Date: Thu Mar 9 16:54:35 2017 +0100
build: Add M4 macros for python.
* m4/python.m4: New file.
Signed-off-by: Justus Winter <justus at g10code.com>
---
m4/python.m4 | 239 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 239 insertions(+)
diff --git a/m4/python.m4 b/m4/python.m4
new file mode 100644
index 0000000..790e68b
--- /dev/null
+++ b/m4/python.m4
@@ -0,0 +1,239 @@
+## ------------------------ -*- Autoconf -*-
+## Python file handling
+## From Andrew Dalke
+## Updated by James Henstridge
+## ------------------------
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+
+# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------------
+# Adds support for distributing Python modules and packages. To
+# install modules, copy them to $(pythondir), using the python_PYTHON
+# automake variable. To install a package with the same name as the
+# automake package, install to $(pkgpythondir), or use the
+# pkgpython_PYTHON automake variable.
+#
+# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
+# locations to install python extension modules (shared libraries).
+# Another macro is required to find the appropriate flags to compile
+# extension modules.
+#
+# If your package is configured with a different prefix to python,
+# users will have to add the install directory to the PYTHONPATH
+# environment variable, or create a .pth file (see the python
+# documentation for details).
+#
+# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
+# cause an error if the version of python installed on the system
+# doesn't meet the requirement. MINIMUM-VERSION should consist of
+# numbers and dots only.
+AC_DEFUN([AM_PATH_PYTHON],
+ [
+ dnl Find a Python interpreter. Python versions prior to 2.0 are not
+ dnl supported. (2.0 was released on October 16, 2000).
+ m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
+[python python2 python3 python3.3 python3.2 python3.1 python3.0 python2.7 dnl
+ python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0])
+
+ AC_ARG_VAR([PYTHON], [the Python interpreter])
+
+ m4_if([$1],[],[
+ dnl No version check is needed.
+ # Find any Python interpreter.
+ if test -z "$PYTHON"; then
+ AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
+ fi
+ am_display_PYTHON=python
+ ], [
+ dnl A version check is needed.
+ if test -n "$PYTHON"; then
+ # If the user set $PYTHON, use it and don't search something else.
+ AC_MSG_CHECKING([whether $PYTHON version is >= $1])
+ AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([Python interpreter is too old])])
+ am_display_PYTHON=$PYTHON
+ else
+ # Otherwise, try each interpreter until we find one that satisfies
+ # VERSION.
+ AC_CACHE_CHECK([for a Python interpreter with version >= $1],
+ [am_cv_pathless_PYTHON],[
+ for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
+ test "$am_cv_pathless_PYTHON" = none && break
+ AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
+ done])
+ # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
+ if test "$am_cv_pathless_PYTHON" = none; then
+ PYTHON=:
+ else
+ AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
+ fi
+ am_display_PYTHON=$am_cv_pathless_PYTHON
+ fi
+ ])
+
+ if test "$PYTHON" = :; then
+ dnl Run any user-specified action, or abort.
+ m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
+ else
+
+ dnl Query Python for its version number. Getting [:3] seems to be
+ dnl the best way to do this; it's what "site.py" does in the standard
+ dnl library.
+
+ AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
+ [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
+ AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
+
+ dnl Use the values of $prefix and $exec_prefix for the corresponding
+ dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
+ dnl distinct variables so they can be overridden if need be. However,
+ dnl general consensus is that you shouldn't need this ability.
+
+ AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
+ AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
+
+ dnl At times (like when building shared libraries) you may want
+ dnl to know which OS platform Python thinks this is.
+
+ AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
+ [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
+ AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
+
+ # Just factor out some code duplication.
+ am_python_setup_sysconfig="\
+import sys
+# Prefer sysconfig over distutils.sysconfig, for better compatibility
+# with python 3.x. See automake bug#10227.
+try:
+ import sysconfig
+except ImportError:
+ can_use_sysconfig = 0
+else:
+ can_use_sysconfig = 1
+# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
+# <https://github.com/pypa/virtualenv/issues/118>
+try:
+ from platform import python_implementation
+ if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
+ can_use_sysconfig = 0
+except ImportError:
+ pass"
+
+ dnl Set up 4 directories:
+
+ dnl pythondir -- where to install python scripts. This is the
+ dnl site-packages directory, not the python standard library
+ dnl directory like in previous automake betas. This behavior
+ dnl is more consistent with lispdir.m4 for example.
+ dnl Query distutils for this directory.
+ AC_CACHE_CHECK([for $am_display_PYTHON script directory],
+ [am_cv_python_pythondir],
+ [if test "x$prefix" = xNONE
+ then
+ am_py_prefix=$ac_default_prefix
+ else
+ am_py_prefix=$prefix
+ fi
+ am_cv_python_pythondir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+ sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
+else:
+ from distutils import sysconfig
+ sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+ case $am_cv_python_pythondir in
+ $am_py_prefix*)
+ am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+ am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+ ;;
+ *)
+ case $am_py_prefix in
+ /usr|/System*) ;;
+ *)
+ am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
+ ;;
+ esac
+ ;;
+ esac
+ ])
+ AC_SUBST([pythondir], [$am_cv_python_pythondir])
+
+ dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
+ dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
+ dnl more consistent with the rest of automake.
+
+ AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
+
+ dnl pyexecdir -- directory for installing python extension modules
+ dnl (shared libraries)
+ dnl Query distutils for this directory.
+ AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
+ [am_cv_python_pyexecdir],
+ [if test "x$exec_prefix" = xNONE
+ then
+ am_py_exec_prefix=$am_py_prefix
+ else
+ am_py_exec_prefix=$exec_prefix
+ fi
+ am_cv_python_pyexecdir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+ sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
+else:
+ from distutils import sysconfig
+ sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+ case $am_cv_python_pyexecdir in
+ $am_py_exec_prefix*)
+ am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+ am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+ ;;
+ *)
+ case $am_py_exec_prefix in
+ /usr|/System*) ;;
+ *)
+ am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
+ ;;
+ esac
+ ;;
+ esac
+ ])
+ AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
+
+ dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
+
+ AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
+
+ dnl Run any user-specified action.
+ $2
+ fi
+
+])
+
+
+# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ---------------------------------------------------------------------------
+# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
+# Run ACTION-IF-FALSE otherwise.
+# This test uses sys.hexversion instead of the string equivalent (first
+# word of sys.version), in order to cope with versions such as 2.2c1.
+# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
+AC_DEFUN([AM_PYTHON_CHECK_VERSION],
+ [prog="import sys
+# split strings by '.' and convert to numeric. Append some zeros
+# because we need at least 4 digits for the hex conversion.
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
+minverhex = 0
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
+sys.exit(sys.hexversion < minverhex)"
+ AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
--
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