1 # Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2, or (at your option)
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
18 # AM_PATH_PYTHON_VERSION(ABI-VERSION1, [MINIMUM-VERSION1 [, ABI-VERSION2, [MINIMUM-VERSION2 ...]]])
20 # An alternative to AM_PATH_PYTHON that checks for specific python ABI/version pairs.
22 # AM_PATH_PYTHON_VERSION(2.3, 2.3.5, 2.4, 2.4.0)
23 # checks for a python2.3 binary returning python version >= 2.3.5, and
24 # if that fails it looks for python2.4 containing version >= 2.4.0
25 # It aborts configure with an error if no statisfying version is found.
26 # Env. var. PYTHON can be used to point a specific/laternate version to configure.
28 AC_DEFUN([AM_PATH_PYTHON_VERSION],
30 m4_pattern_allow([m4_shift])
31 _python_save="$PYTHON"
32 dnl Find a Python interpreter with corresponding ABI version.
34 m4_define(PYTHON_var, PYTHON[]m4_translit($1,[.],[_]))
36 if test -z "$PYTHON"; then
37 AC_PATH_PROG(PYTHON_var, python$1, [])
45 if test -n "$PYTHON"; then
49 dnl A version check is needed.
50 AC_MSG_CHECKING([whether $PYTHON version is >= $2])
51 AM_PYTHON_CHECK_VERSION([$PYTHON], [$2],
53 [AC_MSG_RESULT([no]); PYTHON=""])
58 if test -z "$PYTHON"; then
59 dnl if more arguments, shift/recurse, else fail
61 AC_MSG_ERROR([no suitable Python interpreter found])
63 PYTHON="$_python_save"
64 AM_PATH_PYTHON_VERSION(m4_shift(m4_shift($@)))
69 dnl Query Python for its version number. Getting [:3] seems to be
70 dnl the best way to do this; it's what "site.py" does in the standard
73 AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
74 [am_cv_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`])
75 AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
77 dnl Use the values of $prefix and $exec_prefix for the corresponding
78 dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
79 dnl distinct variables so they can be overridden if need be. However,
80 dnl general consensus is that you shouldn't need this ability.
82 AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
83 AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
85 dnl At times (like when building shared libraries) you may want
86 dnl to know which OS platform Python thinks this is.
88 AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
89 [am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`])
90 AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
93 dnl Set up 4 directories:
95 dnl pythondir -- where to install python scripts. This is the
96 dnl site-packages directory, not the python standard library
97 dnl directory like in previous automake betas. This behavior
98 dnl is more consistent with lispdir.m4 for example.
99 dnl Query distutils for this directory. distutils does not exist in
100 dnl Python 1.5, so we fall back to the hardcoded directory if it
102 AC_CACHE_CHECK([for $am_display_PYTHON script directory],
103 [am_cv_python_pythondir],
104 [am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
105 echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`])
106 AC_SUBST([pythondir], [$am_cv_python_pythondir])
108 dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
109 dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
110 dnl more consistent with the rest of automake.
112 AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
114 dnl pyexecdir -- directory for installing python extension modules
115 dnl (shared libraries)
116 dnl Query distutils for this directory. distutils does not exist in
117 dnl Python 1.5, so we fall back to the hardcoded directory if it
119 AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
120 [am_cv_python_pyexecdir],
121 [am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
122 echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`])
123 AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
125 dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
127 AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])