Update python m4 macro
This fixes python 3 with additional library suffix detection (for example: libpython3.4m.so) Gentoo bug: https://bugs.gentoo.org/show_bug.cgi?id=567944
This commit is contained in:
Bernard Cafarelli
parent
550b0bb047
commit
e92aaaeb22
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@ -1,5 +1,5 @@
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# ===========================================================================
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# http://www.nongnu.org/autoconf-archive/ax_python_devel.html
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# http://www.gnu.org/software/autoconf-archive/ax_python_devel.html
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# ===========================================================================
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#
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# SYNOPSIS
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@ -12,9 +12,9 @@
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# in your configure.ac.
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#
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# This macro checks for Python and tries to get the include path to
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# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS)
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# output variables. It also exports $(PYTHON_EXTRA_LIBS)
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# for embedding Python in your code.
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# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output
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# variables. It also exports $(PYTHON_EXTRA_LIBS) and
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# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
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#
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# You can search for some particular version of Python by passing a
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# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
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@ -34,11 +34,12 @@
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# LICENSE
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#
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# Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de>
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# Copyright (c) 2009 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
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# Copyright (c) 2009 Alan W. Irwin
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# Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net>
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# Copyright (c) 2009 Andrew Collier <colliera@ukzn.ac.za>
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# Copyright (c) 2009 Andrew Collier
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# Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org>
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# Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org>
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# Copyright (c) 2013 Daniel Mullner <muellner@math.stanford.edu>
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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@ -66,6 +67,8 @@
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#serial 18
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AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
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AC_DEFUN([AX_PYTHON_DEVEL],[
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#
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@ -96,8 +99,8 @@ AC_DEFUN([AX_PYTHON_DEVEL],[
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This version of the AC@&t@_PYTHON_DEVEL macro
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doesn't work properly with versions of Python before
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2.1.0. You may need to re-run configure, setting the
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variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,
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PYTHON_EXTRA_LIBS by hand.
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variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
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PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
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Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
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to something else than an empty string.
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])
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@ -117,7 +120,7 @@ to something else than an empty string.
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ver = sys.version.split ()[[0]]; \
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print (ver $1)"`
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if test "$ac_supports_python_ver" = "True"; then
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AC_MSG_RESULT([yes])
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([this package requires Python $1.
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@ -133,7 +136,7 @@ variable to configure. See ``configure --help'' for reference.
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# Check if you have distutils, else fail
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#
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AC_MSG_CHECKING([for the distutils Python package])
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ac_distutils_result=`$PYTHON -c "import distutils" >/dev/null 2>&1`
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ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
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if test -z "$ac_distutils_result"; then
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AC_MSG_RESULT([yes])
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else
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@ -150,9 +153,15 @@ $ac_distutils_result])
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AC_MSG_CHECKING([for Python include path])
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if test -z "$PYTHON_CPPFLAGS"; then
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python_path=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_inc ());"`
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print (distutils.sysconfig.get_python_inc ());"`
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plat_python_path=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_inc (plat_specific=1));"`
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if test -n "${python_path}"; then
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python_path="-I$python_path"
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if test "${plat_python_path}" != "${python_path}"; then
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python_path="-I$python_path -I$plat_python_path"
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else
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python_path="-I$python_path"
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fi
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fi
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PYTHON_CPPFLAGS=$python_path
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fi
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@ -163,7 +172,7 @@ $ac_distutils_result])
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# Check for Python library path
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#
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AC_MSG_CHECKING([for Python library path])
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if test -z "$PYTHON_LDFLAGS"; then
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if test -z "$PYTHON_LIBS"; then
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# (makes two attempts to ensure we've got a version number
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# from the interpreter)
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ac_python_version=`cat<<EOD | $PYTHON -
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@ -171,11 +180,9 @@ $ac_distutils_result])
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# join all versioning strings, on some systems
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# major/minor numbers could be in different list elements
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from distutils.sysconfig import *
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ret = ''
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for e in get_config_vars ('VERSION'):
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if (e != None):
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ret += e
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print (ret)
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e = get_config_var('VERSION')
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if e is not None:
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print(e)
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EOD`
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if test -z "$ac_python_version"; then
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@ -196,55 +203,49 @@ EOD`
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# There should be only one
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import distutils.sysconfig
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for e in distutils.sysconfig.get_config_vars ('LIBDIR'):
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if e != None:
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print (e)
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break
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e = distutils.sysconfig.get_config_var('LIBDIR')
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if e is not None:
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print (e)
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EOD`
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# Before checking for libpythonX.Y, we need to know
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# the extension the OS we're on uses for libraries
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# (we take the first one, if there's more than one fix me!):
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ac_python_soext=`$PYTHON -c \
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"import distutils.sysconfig; \
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print (distutils.sysconfig.get_config_vars('SO')[[0]])"`
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# Now, for the library:
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ac_python_soname=`$PYTHON -c \
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"import distutils.sysconfig; \
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print (distutils.sysconfig.get_config_vars('LDLIBRARY')[[0]])"`
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ac_python_library=`cat<<EOD | $PYTHON -
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# Strip away extension from the end to canonicalize its name:
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ac_python_library=`echo "$ac_python_soname" | sed "s/${ac_python_soext}$//"`
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import distutils.sysconfig
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c = distutils.sysconfig.get_config_vars()
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if 'LDVERSION' in c:
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print ('python'+c[['LDVERSION']])
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else:
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print ('python'+c[['VERSION']])
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EOD`
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# This small piece shamelessly adapted from PostgreSQL python macro;
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# credits goes to momjian, I think. I'd like to put the right name
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# in the credits, if someone can point me in the right direction... ?
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#
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if test -n "$ac_python_libdir" -a -n "$ac_python_library" \
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-a x"$ac_python_library" != x"$ac_python_soname"
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if test -n "$ac_python_libdir" -a -n "$ac_python_library"
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then
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# use the official shared library
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ac_python_library=`echo "$ac_python_library" | sed "s/^lib//"`
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PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library"
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PYTHON_LIBS="-L$ac_python_libdir -l$ac_python_library"
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else
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# old way: use libpython from python_configdir
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ac_python_libdir=`$PYTHON -c \
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"from distutils.sysconfig import get_python_lib as f; \
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import os; \
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print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
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PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version"
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PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
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fi
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if test -z "PYTHON_LDFLAGS"; then
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if test -z "PYTHON_LIBS"; then
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AC_MSG_ERROR([
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Cannot determine location of your Python DSO. Please check it was installed with
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dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand.
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dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
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])
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fi
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fi
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AC_MSG_RESULT([$PYTHON_LDFLAGS])
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AC_SUBST([PYTHON_LDFLAGS])
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AC_MSG_RESULT([$PYTHON_LIBS])
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AC_SUBST([PYTHON_LIBS])
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#
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# Check for site packages
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@ -252,7 +253,7 @@ EOD`
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AC_MSG_CHECKING([for Python site-packages path])
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if test -z "$PYTHON_SITE_PKG"; then
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PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
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print (distutils.sysconfig.get_python_lib(0,0));"`
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print (distutils.sysconfig.get_python_lib(0,0));"`
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fi
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AC_MSG_RESULT([$PYTHON_SITE_PKG])
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AC_SUBST([PYTHON_SITE_PKG])
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@ -261,10 +262,22 @@ EOD`
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# libraries which must be linked in when embedding
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#
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AC_MSG_CHECKING(python extra libraries)
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if test -z "$PYTHON_EXTRA_LIBS"; then
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PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
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if test -z "$PYTHON_EXTRA_LDFLAGS"; then
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PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
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conf = distutils.sysconfig.get_config_var; \
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print (conf('LOCALMODLIBS') + ' ' + conf('LIBS'))"`
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print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
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fi
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AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
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AC_SUBST(PYTHON_EXTRA_LDFLAGS)
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#
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# linking flags needed when embedding
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#
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AC_MSG_CHECKING(python extra linking flags)
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if test -z "$PYTHON_EXTRA_LIBS"; then
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PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
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conf = distutils.sysconfig.get_config_var; \
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print (conf('LINKFORSHARED'))"`
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fi
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AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
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AC_SUBST(PYTHON_EXTRA_LIBS)
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@ -275,8 +288,10 @@ EOD`
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AC_MSG_CHECKING([consistency of all components of python development environment])
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# save current global flags
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ac_save_LIBS="$LIBS"
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ac_save_LDFLAGS="$LDFLAGS"
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ac_save_CPPFLAGS="$CPPFLAGS"
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LIBS="$ac_save_LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LIBS"
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LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_EXTRA_LIBS"
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LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
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CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
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AC_LANG_PUSH([C])
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AC_LINK_IFELSE([
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@ -287,6 +302,7 @@ EOD`
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# turn back to default flags
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CPPFLAGS="$ac_save_CPPFLAGS"
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LIBS="$ac_save_LIBS"
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LDFLAGS="$ac_save_LDFLAGS"
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AC_MSG_RESULT([$pythonexists])
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@ -294,8 +310,8 @@ EOD`
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AC_MSG_FAILURE([
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Could not link test program to Python. Maybe the main Python library has been
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installed in some non-standard library path. If so, pass it to configure,
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via the LDFLAGS environment variable.
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Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
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via the LIBS environment variable.
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Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
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============================================================================
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ERROR!
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You probably have to install the development version of the Python package
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