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## ------------------------
## Python file handling
## From Andrew Dalke
## Updated by James Henstridge
## ------------------------
# Copyright 1999, 2000, 2001, 2002, 2003 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])
# 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 python2.1 python2.0 python1.6 python1.5])
m4_if([$1],[],[
dnl No version check is needed.
# Find any Python interpreter.
AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST)
am_display_PYTHON=python
], [
dnl A version check is needed.
if test -n "$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)])
else
# Otherwise, try each interpreter until we find one that satisfies
# VERSION.
AC_CACHE_CHECK([for a Python interpreter with version >= $1],
[am_cv_pathless_PYTHON],[
for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST : ; do
if test "$am_cv_pathless_PYTHON" = : ; then
AC_MSG_ERROR([no suitable Python interpreter found])
fi
AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
done])
# Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
am_display_PYTHON=$am_cv_pathless_PYTHON
fi
])
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])
])
# 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])])
dnl @synopsis AC_PYTHON_DEVEL
dnl
dnl Checks for Python and tries to get the include path to 'Python.h'.
dnl It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) output
dnl variable.
dnl
dnl @category InstalledPackages
dnl @author Sebastian Huber <sebastian-huber@web.de>
dnl @author Alan W. Irwin <irwin@beluga.phys.uvic.ca>
dnl @author Rafael Laboissiere <laboissiere@psy.mpg.de>
dnl @author Andrew Collier <colliera@nu.ac.za>
dnl @version 2004-07-14
dnl @license GPLWithACException
AC_DEFUN([AC_PYTHON_DEVEL],[
#
# should allow for checking of python version here...
#
AC_REQUIRE([AM_PATH_PYTHON])
# Check for Python include path
AC_MSG_CHECKING([for Python include path])
python_path=`echo $PYTHON | sed "s,/bin.*$,,"`
for i in "$python_path/include/python$PYTHON_VERSION/" "$python_path/include/python/" "$python_path/" ; do
python_path=`find $i -type f -name Python.h -print | sed "1q"`
if test -n "$python_path" ; then
break
fi
done
python_path=`echo $python_path | sed "s,/Python.h$,,"`
AC_MSG_RESULT([$python_path])
if test -z "$python_path" ; then
AC_MSG_ERROR([cannot find Python include path])
fi
AC_SUBST([PYTHON_CPPFLAGS],[-I$python_path])
# Check for Python library path
AC_MSG_CHECKING([for Python library path])
python_path=`echo $PYTHON | sed "s,/bin.*$,,"`
for i in "$python_path/lib/python$PYTHON_VERSION/config/" "$python_path/lib/python$PYTHON_VERSION/" "$python_path/lib/python/config/" "$python_path/lib/python/" "$python_path/" ; do
python_path=`find $i -type f -name libpython$PYTHON_VERSION.* -print | sed "1q"`
if test -n "$python_path" ; then
break
fi
done
python_path=`echo $python_path | sed "s,/libpython.*$,,"`
AC_MSG_RESULT([$python_path])
if test -z "$python_path" ; then
AC_MSG_ERROR([cannot find Python library path])
fi
AC_SUBST([PYTHON_LDFLAGS],["-L$python_path -lpython$PYTHON_VERSION"])
#
python_site=`echo $python_path | sed "s/config/site-packages/"`
AC_SUBST([PYTHON_SITE_PKG],[$python_site])
#
# libraries which must be linked in when embedding
#
AC_MSG_CHECKING(python extra libraries)
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print conf('LOCALMODLIBS')+' '+conf('LIBS')"
AC_MSG_RESULT($PYTHON_EXTRA_LIBS)`
AC_SUBST(PYTHON_EXTRA_LIBS)
])
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