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, see <http://www.gnu.org/licenses/>.
16 # AM_PATH_PYTHON_VERSION(ABI-VERSION1, [MINIMUM-VERSION1 [, ABI-VERSION2, [MINIMUM-VERSION2 ...]]])
18 # An alternative to AM_PATH_PYTHON that checks for specific python ABI/version pairs.
20 # AM_PATH_PYTHON_VERSION(2.3, 2.3.5, 2.4, 2.4.0)
21 # checks for a python2.3 binary returning python version >= 2.3.5, and
22 # if that fails it looks for python2.4 containing version >= 2.4.0
23 # It aborts configure with an error if no statisfying version is found.
24 # Env. var. PYTHON can be used to point a specific/laternate version to configure.
26 AC_DEFUN([AM_PATH_PYTHON_VERSION],
28 m4_pattern_allow([m4_shift])
29 _python_save="$PYTHON"
30 dnl Find a Python interpreter with corresponding ABI version.
32 m4_define(PYTHON_var, PYTHON[]m4_translit($1,[.],[_]))
34 if test -z "$PYTHON"; then
35 AC_PATH_PROG(PYTHON_var, python$1, [])
43 if test -n "$PYTHON"; then
47 dnl A version check is needed.
48 AC_MSG_CHECKING([whether $PYTHON version is >= $2])
49 AM_PYTHON_CHECK_VERSION([$PYTHON], [$2],
51 [AC_MSG_RESULT([no]); PYTHON=""])
56 if test -z "$PYTHON"; then
57 dnl if more arguments, shift/recurse, else fail
59 AC_MSG_ERROR([no suitable Python interpreter found])
61 PYTHON="$_python_save"
62 AM_PATH_PYTHON_VERSION(m4_shift(m4_shift($@)))
67 dnl Query Python for its version number. Getting [:3] seems to be
68 dnl the best way to do this; it's what "site.py" does in the standard
71 AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
72 [am_cv_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`])
73 AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
75 dnl Use the values of $prefix and $exec_prefix for the corresponding
76 dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
77 dnl distinct variables so they can be overridden if need be. However,
78 dnl general consensus is that you shouldn't need this ability.
80 AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
81 AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
83 dnl At times (like when building shared libraries) you may want
84 dnl to know which OS platform Python thinks this is.
86 AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
87 [am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`])
88 AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
91 dnl Set up 4 directories:
93 dnl pythondir -- where to install python scripts. This is the
94 dnl site-packages directory, not the python standard library
95 dnl directory like in previous automake betas. This behavior
96 dnl is more consistent with lispdir.m4 for example.
97 dnl Query distutils for this directory. distutils does not exist in
98 dnl Python 1.5, so we fall back to the hardcoded directory if it
100 AC_CACHE_CHECK([for $am_display_PYTHON script directory],
101 [am_cv_python_pythondir],
102 [am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
103 echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`])
104 AC_SUBST([pythondir], [$am_cv_python_pythondir])
106 dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
107 dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
108 dnl more consistent with the rest of automake.
110 AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
112 dnl pyexecdir -- directory for installing python extension modules
113 dnl (shared libraries)
114 dnl Query distutils for this directory. distutils does not exist in
115 dnl Python 1.5, so we fall back to the hardcoded directory if it
117 AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
118 [am_cv_python_pyexecdir],
119 [am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
120 echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`])
121 AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
123 dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
125 AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])