Updated ac_python_devel.m4 to newer ax_python_devel.m4
diff --git a/m4/ac_python_devel.m4 b/m4/ax_python_devel.m4
similarity index 61%
rename from m4/ac_python_devel.m4
rename to m4/ax_python_devel.m4
index 545c607..44dbd83 100644
--- a/m4/ac_python_devel.m4
+++ b/m4/ax_python_devel.m4
@@ -1,10 +1,10 @@
# ===========================================================================
-# http://autoconf-archive.cryp.to/ac_python_devel.html
+# https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
# ===========================================================================
#
# SYNOPSIS
#
-# AC_PYTHON_DEVEL([version])
+# AX_PYTHON_DEVEL([version])
#
# DESCRIPTION
#
@@ -12,8 +12,8 @@
# 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.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) 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
@@ -31,18 +31,15 @@
# If you need to use this macro for an older Python version, please
# contact the authors. We're always open for feedback.
#
-# LAST MODIFICATION
+# LICENSE
#
-# 2008-04-12
-#
-# COPYLEFT
-#
-# Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de>
-# Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
-# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
-# Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za>
-# Copyright (c) 2008 Matteo Settenvini <matteo@member.fsf.org>
-# Copyright (c) 2008 Horst Knorr <hk_classes@knoda.org>
+# Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de>
+# Copyright (c) 2009 Alan W. Irwin
+# Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net>
+# Copyright (c) 2009 Andrew Collier
+# Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org>
+# Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org>
+# Copyright (c) 2013 Daniel Mullner <muellner@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
@@ -55,7 +52,7 @@
# 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/>.
+# with this program. If not, see <https://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
@@ -66,11 +63,14 @@
# 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 Macro 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.
+# 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.
-AC_DEFUN([AC_PYTHON_DEVEL],[
+#serial 21
+
+AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
+AC_DEFUN([AX_PYTHON_DEVEL],[
#
# Allow the use of a (user set) custom python version
#
@@ -90,8 +90,8 @@
#
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')"`
+ 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])
@@ -99,7 +99,7 @@
This version of the AC@&t@_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,
+variables PYTHON_CPPFLAGS, PYTHON_LIBS, 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.
@@ -117,10 +117,10 @@
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 >= '2.1.0')"`
+ ver = sys.version.split ()[[0]]; \
+ print (ver $1)"`
if test "$ac_supports_python_ver" = "True"; then
- AC_MSG_RESULT([yes])
+ AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_ERROR([this package requires Python $1.
@@ -137,7 +137,7 @@
#
AC_MSG_CHECKING([for the distutils Python package])
ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
- if test -z "$ac_distutils_result"; then
+ if test $? -eq 0; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
@@ -151,14 +151,17 @@
# Check for Python include path
#
AC_MSG_CHECKING([for Python include path])
- if type $PYTHON-config; then
- PYTHON_CPPFLAGS=`$PYTHON-config --includes`
- fi
if test -z "$PYTHON_CPPFLAGS"; then
python_path=`$PYTHON -c "import distutils.sysconfig; \
- print(distutils.sysconfig.get_python_inc());"`
+ 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
- python_path="-I$python_path"
+ if test "${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
@@ -169,29 +172,80 @@
# Check for Python library path
#
AC_MSG_CHECKING([for Python library path])
- if type $PYTHON-config; then
- PYTHON_LDFLAGS=`$PYTHON-config --ldflags`
- fi
- if test -z "$PYTHON_LDFLAGS"; then
+ if test -z "$PYTHON_LIBS"; then
# (makes two attempts to ensure we've got a version number
# from the interpreter)
- py_version=`$PYTHON -c "from distutils.sysconfig import *; \
- print(' '.join(get_config_vars('VERSION')))"`
- if test "$py_version" = "[None]"; then
+ 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 "$PYTHON_VERSION"; then
- py_version=$PYTHON_VERSION
+ ac_python_version=$PYTHON_VERSION
else
- py_version=`$PYTHON -c "import sys; \
- print(sys.version[[:3]]")`
+ ac_python_version=`$PYTHON -c "import sys; \
+ print (sys.version[[:3]])"`
fi
fi
- PYTHON_LDFLAGS=`$PYTHON -c "from distutils.sysconfig import *; \
- print('-L' + get_python_lib(0,1) + \
- ' -lpython');"`$py_version
+ # Make the versioning information available to the compiler
+ AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$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_LIBS="-L$ac_python_libdir -l$ac_python_library"
+ else
+ # old way: use libpython from python_configdir
+ ac_python_libdir=`$PYTHON -c \
+ "from distutils.sysconfig import get_python_lib as f; \
+ import os; \
+ print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
+ PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
+ fi
+
+ if test -z "PYTHON_LIBS"; then
+ AC_MSG_ERROR([
+ Cannot determine location of your Python DSO. Please check it was installed with
+ dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
+ ])
+ fi
fi
- AC_MSG_RESULT([$PYTHON_LDFLAGS])
- AC_SUBST([PYTHON_LDFLAGS])
+ AC_MSG_RESULT([$PYTHON_LIBS])
+ AC_SUBST([PYTHON_LIBS])
#
# Check for site packages
@@ -199,7 +253,7 @@
AC_MSG_CHECKING([for Python site-packages path])
if test -z "$PYTHON_SITE_PKG"; then
PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
- print(distutils.sysconfig.get_python_lib(0,0))"`
+ print (distutils.sysconfig.get_python_lib(0,0));"`
fi
AC_MSG_RESULT([$PYTHON_SITE_PKG])
AC_SUBST([PYTHON_SITE_PKG])
@@ -211,7 +265,7 @@
if test -z "$PYTHON_EXTRA_LIBS"; then
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
- print(conf('LOCALMODLIBS'), conf('LIBS'))"`
+ print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
fi
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
AC_SUBST(PYTHON_EXTRA_LIBS)
@@ -223,7 +277,7 @@
if test -z "$PYTHON_EXTRA_LDFLAGS"; then
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
- print(conf('LINKFORSHARED'))"`
+ print (conf('LINKFORSHARED'))"`
fi
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
AC_SUBST(PYTHON_EXTRA_LDFLAGS)
@@ -232,24 +286,32 @@
# final check to see if everything compiles alright
#
AC_MSG_CHECKING([consistency of all components of python development environment])
- AC_LANG_PUSH([C])
# save current global flags
- LIBS="$ac_save_LIBS $PYTHON_LDFLAGS"
+ ac_save_LIBS="$LIBS"
+ ac_save_LDFLAGS="$LDFLAGS"
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_EXTRA_LIBS"
+ LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
- AC_TRY_LINK([
- #include <Python.h>
- ],[
- Py_Initialize();
- ],[pythonexists=yes],[pythonexists=no])
+ AC_LANG_PUSH([C])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <Python.h>]],
+ [[Py_Initialize();]])
+ ],[pythonexists=yes],[pythonexists=no])
+ AC_LANG_POP([C])
+ # turn back to default flags
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ LIBS="$ac_save_LIBS"
+ LDFLAGS="$ac_save_LDFLAGS"
AC_MSG_RESULT([$pythonexists])
- if test ! "$pythonexists" = "yes"; then
- AC_MSG_ERROR([
+ if test ! "x$pythonexists" = "xyes"; then
+ AC_MSG_FAILURE([
Could not link test program to Python. Maybe the main Python library has been
installed in some non-standard library path. If so, pass it to configure,
- via the LDFLAGS environment variable.
- Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
+ via the LIBS environment variable.
+ Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
============================================================================
ERROR!
You probably have to install the development version of the Python package
@@ -258,10 +320,6 @@
])
PYTHON_VERSION=""
fi
- AC_LANG_POP
- # turn back to default flags
- CPPFLAGS="$ac_save_CPPFLAGS"
- LIBS="$ac_save_LIBS"
#
# all done!
