medit/m4/moo-python.m4

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##############################################################################
# _MOO_AC_PYTHON_DEVEL(action-if-found,action-if-not-found)
# checks python headers and libs. it's
# http://www.gnu.org/software/ac-archive/htmldoc/ac_python_devel.html,
# modified to allow actions if-found/if-not-found
#
AC_DEFUN([_MOO_AC_PYTHON_DEVEL],[
# Check for distutils first
AC_MSG_CHECKING([for the distutils Python package])
$PYTHON -c "import distutils" 2>/dev/null
if test $? -eq 0; then
python_found=yes
AC_MSG_RESULT([yes])
else
python_found=no
AC_MSG_RESULT([no])
AC_MSG_ERROR([cannot import Python module "distutils".
Please check your Python installation.])
fi
# Check for Python include path
# if PYTHON_INCLUDES is set, do not do anything
if test $python_found = yes; then
AC_MSG_CHECKING([for Python include path])
if test -z "$PYTHON_INCLUDES"; then
python_path=`$PYTHON -c "import distutils.sysconfig; \
print distutils.sysconfig.get_python_inc();"`
if test -n "${python_path}"; then
python_path="-I$python_path"
fi
PYTHON_INCLUDES=$python_path
fi
AC_MSG_RESULT([$PYTHON_INCLUDES])
AC_SUBST([PYTHON_INCLUDES])
fi
# Check for Python linker flags
# if PYTHON_LIBS is set, do not do anything
if test $python_found = yes; then
AC_MSG_CHECKING([Python linker flags])
if test "x$PYTHON_LIBS" = "x"; then
# (makes two attempts to ensure we've got a version number
# from the interpreter)
py_version=`$PYTHON -c "from distutils.sysconfig import *; \
from string import join; \
print join(get_config_vars('VERSION'))"`
if test "x$py_version" = "x[None]"; then
if test "x$PYTHON_VERSION" != "x"; then
py_version=$PYTHON_VERSION
else
py_version=`$PYTHON -c "import sys; \
print sys.version[[:3]]"`
fi
fi
PYTHON_LIBS=`$PYTHON -c "from distutils.sysconfig import *; \
from string import join; \
print '-L' + get_python_lib(0,1), \
'-lpython';"`$py_version
fi
AC_MSG_RESULT([$PYTHON_LIBS])
AC_SUBST([PYTHON_LIBS])
fi
# Check for Python extra linker flags
# if PYTHON_EXTRA_LIBS is set, do not do anything
if test $python_found = yes; then
if test "x$PYTHON_EXTRA_LIBS" = "x"; then
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print conf('LOCALMODLIBS'), conf('LIBS')"`
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print conf('LDFLAGS')"`
fi
AC_MSG_CHECKING([Python extra libs])
AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
AC_MSG_CHECKING([Python extra linker flags])
AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
AC_SUBST([PYTHON_EXTRA_LIBS])
AC_SUBST([PYTHON_EXTRA_LDFLAGS])
fi
if test $python_found = yes; then
m4_if([$1],[],[:],[$1])
else
m4_if([$2],[],[:],[$2])
fi
])
##############################################################################
# _MOO_AC_CHECK_PYTHON_UNIX(min-version,action-if-found,action-if-not-found)
# checks python stuff when building for unix
#
AC_DEFUN([_MOO_AC_CHECK_PYTHON_UNIX],[
AM_PATH_PYTHON([$1],[
_MOO_AC_PYTHON_DEVEL([
python_found=yes
],[
AC_MSG_WARN([Found python interpreter but no development headers or libraries])
python_found=no
])
],[
python_found=no
])
if test x$python_found = xyes; then
m4_if([$2],[],[:],[$2])
else
PYTHON_INCLUDES=""
PYTHON_LIBS=""
PYTHON_EXTRA_LIBS=""
m4_if([$3],[],[:],[$3])
fi
])
##############################################################################
# MOO_AC_CHECK_PYTHON(min-version,action-if-found,action-if-not-found)
# checks for python, python includes and libs
#
AC_DEFUN([MOO_AC_CHECK_PYTHON],[
AC_MSG_NOTICE([checking for headers and libs required to compile python extensions])
AC_REQUIRE([MOO_AC_CHECK_OS])
if test x$MOO_OS_CYGWIN != xyes; then
if test x$MOO_OS_MINGW = xyes; then
AM_PYTHON_DEVEL_CROSS_MINGW([$2],[$3],[2.4])
AM_PYTHON_DEVEL_CROSS_MINGW([$2],[$3],[2.5])
else
_MOO_AC_CHECK_PYTHON_UNIX([$1],[$2],[$3])
fi
fi
])