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Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..3e98bd3 --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,247 @@ +## ------------------------ +## Python file handling +## From Andrew Dalke +## Updated by James Henstridge +## ------------------------ + +# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 +# Free Software Foundation, Inc. + +# 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 Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) + +# Adds support for distributing Python modules and packages. To +# install modules, copy them to $(pythondir), using the python_PYTHON +# automake variable. To install a package with the same name as the +# automake package, install to $(pkgpythondir), or use the +# pkgpython_PYTHON automake variable. + +# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as +# locations to install python extension modules (shared libraries). +# Another macro is required to find the appropriate flags to compile +# extension modules. + +# If your package is configured with a different prefix to python, +# users will have to add the install directory to the PYTHONPATH +# environment variable, or create a .pth file (see the python +# documentation for details). + +# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will +# cause an error if the version of python installed on the system +# doesn't meet the requirement. MINIMUM-VERSION should consist of +# numbers and dots only. + +AC_DEFUN([AM_PATH_PYTHON], + [ + dnl Find a Python interpreter. Python versions prior to 1.5 are not + dnl supported because the default installation locations changed from + dnl $prefix/lib/site-python in 1.4 to $prefix/lib/python1.5/site-packages + dnl in 1.5. + m4_define([_AM_PYTHON_INTERPRETER_LIST], + [python python2 python2.4 python2.3 python2.2 dnl +python2.1 python2.0 python1.6 python1.5]) + + m4_if([$1],[],[ + dnl No version check is needed. + # Find any Python interpreter. + if test -z "$PYTHON"; then + PYTHON=: + AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST) + fi + am_display_PYTHON=python + ], [ + dnl A version check is needed. + if test -n "$PYTHON"; then + # If the user set $PYTHON, use it and don't search something else. + AC_MSG_CHECKING([whether $PYTHON version >= $1]) + AM_PYTHON_CHECK_VERSION([$PYTHON], [$1], + [AC_MSG_RESULT(yes)], + [AC_MSG_ERROR(too old)]) + am_display_PYTHON=$PYTHON + else + # Otherwise, try each interpreter until we find one that satisfies + # VERSION. + AC_CACHE_CHECK([for a Python interpreter with version >= $1], + [am_cv_pathless_PYTHON],[ + for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do + test "$am_cv_pathless_PYTHON" = none && break + AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break]) + done]) + # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON. + if test "$am_cv_pathless_PYTHON" = none; then + PYTHON=: + else + AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON]) + fi + am_display_PYTHON=$am_cv_pathless_PYTHON + fi + ]) + + if test "$PYTHON" = :; then + dnl Run any user-specified action, or abort. + m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])]) + else + + dnl Query Python for its version number. Getting [:3] seems to be + dnl the best way to do this; it's what "site.py" does in the standard + dnl library. + + AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version], + [am_cv_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`]) + AC_SUBST([PYTHON_VERSION], [$am_cv_python_version]) + + dnl Use the values of $prefix and $exec_prefix for the corresponding + dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made + dnl distinct variables so they can be overridden if need be. However, + dnl general consensus is that you shouldn't need this ability. + + AC_SUBST([PYTHON_PREFIX], ['${prefix}']) + AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}']) + + dnl At times (like when building shared libraries) you may want + dnl to know which OS platform Python thinks this is. + + AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform], + [am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`]) + AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform]) + + + dnl Set up 4 directories: + + dnl pythondir -- where to install python scripts. This is the + dnl site-packages directory, not the python standard library + dnl directory like in previous automake betas. This behavior + dnl is more consistent with lispdir.m4 for example. + dnl Query distutils for this directory. distutils does not exist in + dnl Python 1.5, so we fall back to the hardcoded directory if it + dnl doesn't work. + AC_CACHE_CHECK([for $am_display_PYTHON script directory], + [am_cv_python_pythondir], + [am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null || + echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`]) + AC_SUBST([pythondir], [$am_cv_python_pythondir]) + + dnl pkgpythondir -- $PACKAGE directory under pythondir. Was + dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is + dnl more consistent with the rest of automake. + + AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE]) + + dnl pyexecdir -- directory for installing python extension modules + dnl (shared libraries) + dnl Query distutils for this directory. distutils does not exist in + dnl Python 1.5, so we fall back to the hardcoded directory if it + dnl doesn't work. + AC_CACHE_CHECK([for $am_display_PYTHON extension module directory], + [am_cv_python_pyexecdir], + [am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null || + echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`]) + AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir]) + + dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE) + + AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE]) + + dnl Run any user-specified action. + $2 + fi + +]) + + +# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) +# --------------------------------------------------------------------------- +# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION. +# Run ACTION-IF-FALSE otherwise. +# This test uses sys.hexversion instead of the string equivalent (first +# word of sys.version), in order to cope with versions such as 2.2c1. +# hexversion has been introduced in Python 1.5.2; it's probably not +# worth to support older versions (1.5.1 was released on October 31, 1998). +AC_DEFUN([AM_PYTHON_CHECK_VERSION], + [prog="import sys, string +# split strings by '.' and convert to numeric. Append some zeros +# because we need at least 4 digits for the hex conversion. +minver = map(int, string.split('$2', '.')) + [[0, 0, 0]] +minverhex = 0 +for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[[i]] +sys.exit(sys.hexversion < minverhex)" + AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])]) +python.m4 + + +## this one is commonly used with AM_PATH_PYTHONDIR ... +dnl AM_CHECK_PYMOD(MODNAME [,SYMBOL [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]]) +dnl Check if a module containing a given symbol is visible to python. +AC_DEFUN([AM_CHECK_PYMOD], +[AC_REQUIRE([AM_PATH_PYTHON]) +py_mod_var=`echo $1['_']$2 | sed 'y%./+-%__p_%'` +AC_MSG_CHECKING(for ifelse([$2],[],,[$2 in ])python module $1) +AC_CACHE_VAL(py_cv_mod_$py_mod_var, [ +ifelse([$2],[], [prog=" +import sys +try: + import $1 +except ImportError: + sys.exit(1) +except: + sys.exit(0) +sys.exit(0)"], [prog=" +import $1 +$1.$2"]) +if $PYTHON -c "$prog" 1>&AC_FD_CC 2>&AC_FD_CC + then + eval "py_cv_mod_$py_mod_var=yes" + else + eval "py_cv_mod_$py_mod_var=no" + fi +]) +py_val=`eval "echo \`echo '$py_cv_mod_'$py_mod_var\`"` +if test "x$py_val" != xno; then + AC_MSG_RESULT(yes) + ifelse([$3], [],, [$3 +])dnl +else + AC_MSG_RESULT(no) + ifelse([$4], [],, [$4 +])dnl +fi +]) + +dnl a macro to check for ability to create python extensions +dnl AM_CHECK_PYTHON_HEADERS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE]) +dnl function also defines PYTHON_INCLUDES +AC_DEFUN([AM_CHECK_PYTHON_HEADERS], +[AC_REQUIRE([AM_PATH_PYTHON]) +AC_MSG_CHECKING(for headers required to compile python extensions) +dnl deduce PYTHON_INCLUDES +py_prefix=`$PYTHON -c "import sys; print sys.prefix"` +py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"` +PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}" +if test "$py_prefix" != "$py_exec_prefix"; then + PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}" +fi +AC_SUBST(PYTHON_INCLUDES) +dnl check if the headers exist: +save_CPPFLAGS="$CPPFLAGS" +CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES" +AC_TRY_CPP([#include <Python.h>],dnl +[AC_MSG_RESULT(found) +$1],dnl +[AC_MSG_RESULT(not found) +$2]) +CPPFLAGS="$save_CPPFLAGS" +]) |