diff options
Diffstat (limited to 'config/ax_python_devel.m4')
| -rw-r--r-- | config/ax_python_devel.m4 | 341 |
1 files changed, 229 insertions, 112 deletions
diff --git a/config/ax_python_devel.m4 b/config/ax_python_devel.m4 index f6d4b01444d6..1f480db6d233 100644 --- a/config/ax_python_devel.m4 +++ b/config/ax_python_devel.m4 @@ -4,18 +4,13 @@ # # SYNOPSIS # -# AX_PYTHON_DEVEL([version], [action-if-not-found]) +# AX_PYTHON_DEVEL([version[,optional]]) # # DESCRIPTION # # Note: Defines as a precious variable "PYTHON_VERSION". Don't override it # in your configure.ac. # -# Note: this is a slightly modified version of the original AX_PYTHON_DEVEL -# macro which accepts an additional [action-if-not-found] argument. This -# allow to detect if Python development is available without aborting the -# configure phase with an hard error in case it is not. -# # This macro checks for Python and tries to get the include path to # 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output # variables. It also exports $(PYTHON_EXTRA_LIBS) and @@ -28,6 +23,11 @@ # version number. Don't use "PYTHON_VERSION" for this: that environment # variable is declared as precious and thus reserved for the end-user. # +# By default this will fail if it does not detect a development version of +# python. If you want it to continue, set optional to true, like +# AX_PYTHON_DEVEL([], [true]). The ax_python_devel_found variable will be +# "no" if it fails. +# # 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 @@ -45,7 +45,6 @@ # 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> -# Copyright (c) 2018 loli10K <ezomori.nozomu@gmail.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 @@ -73,10 +72,18 @@ # 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 36 AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL]) AC_DEFUN([AX_PYTHON_DEVEL],[ + # Get whether it's optional + if test -z "$2"; then + ax_python_devel_optional=false + else + ax_python_devel_optional=$2 + fi + ax_python_devel_found=yes + # # Allow the use of a (user set) custom python version # @@ -87,23 +94,26 @@ AC_DEFUN([AX_PYTHON_DEVEL],[ AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) if test -z "$PYTHON"; then - m4_ifvaln([$2],[$2],[ - AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path]) - PYTHON_VERSION="" - ]) + AC_MSG_WARN([Cannot find python$PYTHON_VERSION in your system path]) + if ! $ax_python_devel_optional; then + AC_MSG_ERROR([Giving up, python development not available]) + fi + ax_python_devel_found=no + PYTHON_VERSION="" fi - # - # Check for a version of Python >= 2.1.0 - # - AC_MSG_CHECKING([for a version of Python >= '2.1.0']) - ac_supports_python_ver=`$PYTHON -c "import sys; \ + if test $ax_python_devel_found = yes; then + # + # Check for a version of Python >= 2.1.0 + # + AC_MSG_CHECKING([for a version of Python >= '2.1.0']) + ac_supports_python_ver=`$PYTHON -c "import sys; \ ver = sys.version.split ()[[0]]; \ print (ver >= '2.1.0')"` - if test "$ac_supports_python_ver" != "True"; then + if test "$ac_supports_python_ver" != "True"; then if test -z "$PYTHON_NOVERSIONCHECK"; then AC_MSG_RESULT([no]) - AC_MSG_FAILURE([ + AC_MSG_WARN([ 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 @@ -112,20 +122,27 @@ PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand. Moreover, to disable this check, set PYTHON_NOVERSIONCHECK to something else than an empty string. ]) + if ! $ax_python_devel_optional; then + AC_MSG_FAILURE([Giving up]) + fi + ax_python_devel_found=no + PYTHON_VERSION="" else AC_MSG_RESULT([skip at user request]) fi - else + else AC_MSG_RESULT([yes]) + fi fi - # - # If the macro parameter ``version'' is set, honour it. - # A Python shim class, VPy, is used to implement correct version comparisons via - # string expressions, since e.g. a naive textual ">= 2.7.3" won't work for - # Python 2.7.10 (the ".1" being evaluated as less than ".3"). - # - if test -n "$1"; then + if test $ax_python_devel_found = yes; then + # + # If the macro parameter ``version'' is set, honour it. + # A Python shim class, VPy, is used to implement correct version comparisons via + # string expressions, since e.g. a naive textual ">= 2.7.3" won't work for + # Python 2.7.10 (the ".1" being evaluated as less than ".3"). + # + if test -n "$1"; then AC_MSG_CHECKING([for a version of Python $1]) cat << EOF > ax_python_devel_vpy.py class VPy: @@ -133,7 +150,7 @@ class VPy: return tuple(map(int, s.strip().replace("rc", ".").split("."))) def __init__(self): import sys - self.vpy = tuple(sys.version_info) + self.vpy = tuple(sys.version_info)[[:3]] def __eq__(self, s): return self.vpy == self.vtup(s) def __ne__(self, s): @@ -155,25 +172,69 @@ EOF AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) - AC_MSG_ERROR([this package requires Python $1. + AC_MSG_WARN([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. ]) + if ! $ax_python_devel_optional; then + AC_MSG_ERROR([Giving up]) + fi + ax_python_devel_found=no PYTHON_VERSION="" fi + fi fi - # - # Check for Python include path - # - # - AC_MSG_CHECKING([for Python include path]) - if test -z "$PYTHON_CPPFLAGS"; then - python_path=`$PYTHON -c "import sysconfig; \ - print (sysconfig.get_path('include'));"` - plat_python_path=`$PYTHON -c "import sysconfig; \ - print (sysconfig.get_path('platinclude'));"` + if test $ax_python_devel_found = yes; then + # + # Check if you have distutils, else fail + # + AC_MSG_CHECKING([for the sysconfig Python package]) + ac_sysconfig_result=`$PYTHON -c "import sysconfig" 2>&1` + if test $? -eq 0; then + AC_MSG_RESULT([yes]) + IMPORT_SYSCONFIG="import sysconfig" + else + AC_MSG_RESULT([no]) + + AC_MSG_CHECKING([for the distutils Python package]) + ac_sysconfig_result=`$PYTHON -c "from distutils import sysconfig" 2>&1` + if test $? -eq 0; then + AC_MSG_RESULT([yes]) + IMPORT_SYSCONFIG="from distutils import sysconfig" + else + AC_MSG_WARN([cannot import Python module "distutils". +Please check your Python installation. The error was: +$ac_sysconfig_result]) + if ! $ax_python_devel_optional; then + AC_MSG_ERROR([Giving up]) + fi + ax_python_devel_found=no + PYTHON_VERSION="" + fi + fi + fi + + if test $ax_python_devel_found = yes; then + # + # Check for Python include path + # + AC_MSG_CHECKING([for Python include path]) + if test -z "$PYTHON_CPPFLAGS"; then + if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then + # sysconfig module has different functions + python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_path ('include'));"` + plat_python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_path ('platinclude'));"` + else + # old distutils way + python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_python_inc ());"` + plat_python_path=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_python_inc (plat_specific=1));"` + fi if test -n "${python_path}"; then if test "${plat_python_path}" != "${python_path}"; then python_path="-I$python_path -I$plat_python_path" @@ -182,15 +243,15 @@ variable to configure. See ``configure --help'' for reference. fi fi PYTHON_CPPFLAGS=$python_path - fi - AC_MSG_RESULT([$PYTHON_CPPFLAGS]) - AC_SUBST([PYTHON_CPPFLAGS]) + 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_LIBS"; then + # + # Check for Python library path + # + AC_MSG_CHECKING([for Python library path]) + if test -z "$PYTHON_LIBS"; then # (makes two attempts to ensure we've got a version number # from the interpreter) ac_python_version=`cat<<EOD | $PYTHON - @@ -208,7 +269,7 @@ EOD` ac_python_version=$PYTHON_VERSION else ac_python_version=`$PYTHON -c "import sys; \ - print ('.'.join(sys.version.split('.')[[:2]]))"` + print ("%d.%d" % sys.version_info[[:2]])"` fi fi @@ -220,7 +281,7 @@ EOD` ac_python_libdir=`cat<<EOD | $PYTHON - # There should be only one -import sysconfig +$IMPORT_SYSCONFIG e = sysconfig.get_config_var('LIBDIR') if e is not None: print (e) @@ -229,7 +290,7 @@ EOD` # Now, for the library: ac_python_library=`cat<<EOD | $PYTHON - -import sysconfig +$IMPORT_SYSCONFIG c = sysconfig.get_config_vars() if 'LDVERSION' in c: print ('python'+c[['LDVERSION']]) @@ -249,88 +310,140 @@ EOD` else # old way: use libpython from python_configdir ac_python_libdir=`$PYTHON -c \ - "import sysconfig; \ + "from sysconfig import get_python_lib as f; \ import os; \ - print (os.path.join(sysconfig.get_path('platstdlib'), 'config'));"` + print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"` PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version" fi if test -z "PYTHON_LIBS"; then - m4_ifvaln([$2],[$2],[ - AC_MSG_ERROR([ + AC_MSG_WARN([ Cannot determine location of your Python DSO. Please check it was installed with dynamic libraries enabled, or try setting PYTHON_LIBS by hand. - ]) ]) + if ! $ax_python_devel_optional; then + AC_MSG_ERROR([Giving up]) + fi + ax_python_devel_found=no + PYTHON_VERSION="" fi + fi fi - AC_MSG_RESULT([$PYTHON_LIBS]) - AC_SUBST([PYTHON_LIBS]) - # - # 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));" 2>/dev/null || \ - $PYTHON -c "import sysconfig; \ - print (sysconfig.get_path('purelib'));"` - fi - AC_MSG_RESULT([$PYTHON_SITE_PKG]) - AC_SUBST([PYTHON_SITE_PKG]) + if test $ax_python_devel_found = yes; then + AC_MSG_RESULT([$PYTHON_LIBS]) + AC_SUBST([PYTHON_LIBS]) - # - # 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 sysconfig; \ + # + # Check for site packages + # + AC_MSG_CHECKING([for Python site-packages path]) + if test -z "$PYTHON_SITE_PKG"; then + if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then + PYTHON_SITE_PKG=`$PYTHON -c " +$IMPORT_SYSCONFIG; +if hasattr(sysconfig, 'get_default_scheme'): + scheme = sysconfig.get_default_scheme() +else: + scheme = sysconfig._get_default_scheme() +if scheme == 'posix_local': + # Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/ + scheme = 'posix_prefix' +prefix = '$prefix' +if prefix == 'NONE': + prefix = '$ac_default_prefix' +sitedir = sysconfig.get_path('purelib', scheme, vars={'base': prefix}) +print(sitedir)"` + else + # distutils.sysconfig way + PYTHON_SITE_PKG=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_python_lib(0,0));"` + fi + fi + AC_MSG_RESULT([$PYTHON_SITE_PKG]) + AC_SUBST([PYTHON_SITE_PKG]) + + # + # Check for platform-specific site packages + # + AC_MSG_CHECKING([for Python platform specific site-packages path]) + if test -z "$PYTHON_PLATFORM_SITE_PKG"; then + if test "$IMPORT_SYSCONFIG" = "import sysconfig"; then + PYTHON_PLATFORM_SITE_PKG=`$PYTHON -c " +$IMPORT_SYSCONFIG; +if hasattr(sysconfig, 'get_default_scheme'): + scheme = sysconfig.get_default_scheme() +else: + scheme = sysconfig._get_default_scheme() +if scheme == 'posix_local': + # Debian's default scheme installs to /usr/local/ but we want to find headers in /usr/ + scheme = 'posix_prefix' +prefix = '$prefix' +if prefix == 'NONE': + prefix = '$ac_default_prefix' +sitedir = sysconfig.get_path('platlib', scheme, vars={'platbase': prefix}) +print(sitedir)"` + else + # distutils.sysconfig way + PYTHON_PLATFORM_SITE_PKG=`$PYTHON -c "$IMPORT_SYSCONFIG; \ + print (sysconfig.get_python_lib(1,0));"` + fi + fi + AC_MSG_RESULT([$PYTHON_PLATFORM_SITE_PKG]) + AC_SUBST([PYTHON_PLATFORM_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 "$IMPORT_SYSCONFIG; \ conf = sysconfig.get_config_var; \ print (conf('LIBS') + ' ' + conf('SYSLIBS'))"` - fi - AC_MSG_RESULT([$PYTHON_EXTRA_LIBS]) - AC_SUBST(PYTHON_EXTRA_LIBS) + 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=`$PYTHON -c "import sysconfig; \ + # + # linking flags needed when embedding + # + AC_MSG_CHECKING(python extra linking flags) + if test -z "$PYTHON_EXTRA_LDFLAGS"; then + PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "$IMPORT_SYSCONFIG; \ conf = sysconfig.get_config_var; \ print (conf('LINKFORSHARED'))"` - fi - AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS]) - AC_SUBST(PYTHON_EXTRA_LDFLAGS) + # Hack for macos, it sticks this in here. + PYTHON_EXTRA_LDFLAGS=`echo $PYTHON_EXTRA_LDFLAGS | sed 's/CoreFoundation.*$/CoreFoundation/'` + 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_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 $PYTHON_CPPFLAGS" - AC_LANG_PUSH([C]) - AC_LINK_IFELSE([ + # + # final check to see if everything compiles alright + # + AC_MSG_CHECKING([consistency of all components of python development environment]) + # save current global flags + ac_save_LIBS="$LIBS" + ac_save_LDFLAGS="$LDFLAGS" + ac_save_CPPFLAGS="$CPPFLAGS" + LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS" + LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS" + CPPFLAGS="$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="$ac_save_LIBS" - LDFLAGS="$ac_save_LDFLAGS" + 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]) + AC_MSG_RESULT([$pythonexists]) - if test ! "x$pythonexists" = "xyes"; then - m4_ifvaln([$2],[$2],[ - AC_MSG_FAILURE([ + if test ! "x$pythonexists" = "xyes"; then + AC_MSG_WARN([ 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 LIBS environment variable. @@ -340,9 +453,13 @@ EOD` 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="" - ]) + ]) + if ! $ax_python_devel_optional; then + AC_MSG_ERROR([Giving up]) + fi + ax_python_devel_found=no + PYTHON_VERSION="" + fi fi # |