medit/m4/moo-python.m4

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##############################################################################
# _MOO_AC_CHECK_PYTHON_MINGW(version,action-if-found,action-if-not-found)
# checks python stuff when building for mingw. it's broken
#
AC_DEFUN([_MOO_AC_CHECK_PYTHON_MINGW],[
no_dot_version=`echo $1 | sed "s/\.//"`
if test -z $PYTHON_PARENT_DIR; then
PYTHON_PARENT_DIR=/usr/local/win
fi
if test -z $PYTHON_PREFIX; then
PYTHON_PREFIX=$PYTHON_PARENT_DIR/Python$no_dot_version
fi
if test -z $PYTHON_INCLUDES; then
PYTHON_INCLUDES="-I$PYTHON_PREFIX/include -mno-cygwin"
fi
if test -z $PYTHON_LDFLAGS; then
PYTHON_LDFLAGS="-L$PYTHON_PREFIX/libs -lpython$no_dot_version -mno-cygwin"
fi
if test -z $PYTHON; then
PYTHON="python"
fi
# check whether Python.h and library exists
save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PYTHON_INCLUDES"
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $PYTHON_LDFLAGS"
AC_MSG_CHECKING([PYTHON_INCLUDES])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <Python.h>
int main ()
{
Py_Initialize();
PyRun_SimpleString("from time import time,ctime\n"
"print 'Today is',ctime(time())\n");
Py_Finalize();
return 0;
}]])],[
AC_MSG_RESULT([$PYTHON_INCLUDES])
AC_MSG_CHECKING([PYTHON_LDFLAGS])
AC_MSG_RESULT([$PYTHON_LDFLAGS])
AC_MSG_NOTICE([Did not do real linking])
AC_SUBST(PYTHON_INCLUDES)
AC_SUBST(PYTHON_LDFLAGS)
pyexecdir=$PYTHON_PREFIX/Lib/site-packages
$2
],[
AC_MSG_RESULT([Not found])
PYTHON_INCLUDES=""
PYTHON_LDFLAGS=""
PYTHON_EXTRA_LIBS=""
$3
])
LDFLAGS="$save_LDFLAGS"
CFLAGS="$save_CFLAGS"
CPPFLAGS="$save_CPPFLAGS"
])
##############################################################################
# _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;
# also it uses distutils' LDFLAGS - at least on freebsd it must be used
# to pick up -pthread option.
#
AC_DEFUN([_MOO_AC_PYTHON_DEVEL],[
# Check for Python include path
# if PYTHON_INCLUDES is set, do not do anything
if test -z $PYTHON_INCLUDES; then
python_found=no
python_path=`echo $PYTHON | sed "s,/bin.*$,,"`
for i in "$python_path/include/python$PYTHON_VERSION/" "$python_path/include/python/" ; do
if test -e "$i/Python.h"; then
python_found=yes
AC_MSG_CHECKING([for python include path])
AC_MSG_RESULT([$i])
PYTHON_INCLUDES="-I$i"
AC_SUBST([PYTHON_INCLUDES],[$PYTHON_INCLUDES])
break
fi
done
if test x$python_found = xno; then
AC_MSG_CHECKING([for python include path])
AC_MSG_RESULT([Not found])
fi
else
python_found=yes
AC_SUBST([PYTHON_INCLUDES],[$PYTHON_INCLUDES])
fi
if test x$python_found = xyes; then
# 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
python_found=no
else
AC_MSG_CHECKING(python linker flags)
python_found=yes
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])
# this picks up -pthread option on FreeBSD
PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print conf('LDFLAGS')"`
PYTHON_LDFLAGS="$PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
AC_MSG_RESULT($PYTHON_LDFLAGS)
AC_SUBST(PYTHON_LDFLAGS)
fi
fi
if test x$python_found = xyes; then
# libraries which must be linked in when embedding
AC_MSG_CHECKING(python extra libraries)
PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
conf = distutils.sysconfig.get_config_var; \
print conf('LOCALMODLIBS')+' '+conf('LIBS')"
AC_MSG_RESULT($PYTHON_EXTRA_LIBS)`
AC_SUBST(PYTHON_EXTRA_LIBS)
AC_MSG_CHECKING([whether python can be used])
save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PYTHON_INCLUDES"
# start AC_COMPILE_IFELSE in _AC_PYTHON_DEVEL
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <Python.h>
int main ()
{
PyObject *object = NULL;
return 0;
}]])],[
python_found=yes
AC_MSG_RESULT(yes)
AC_MSG_NOTICE([$PYTHON_INCLUDES $PYTHON_LDFLAGS $PYTHON_EXTRA_LIBS])
],[
python_found=no
AC_MSG_RESULT(no)
])
# end AC_COMPILE_IFELSE in _AC_PYTHON_DEVEL
CFLAGS="$save_CFLAGS"
CPPFLAGS="$save_CPPFLAGS"
fi
if test x$python_found = xyes; then
$1
else
$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
$2
else
PYTHON_INCLUDES=""
PYTHON_LDFLAGS=""
PYTHON_EXTRA_LIBS=""
$3
fi
])
##############################################################################
# MOO_AC_CHECK_PYTHON(min-version,action-if-found,action-if-not-found)
# checks for python, python includes and libs
#
AC_DEFUN([MOO_AC_CHECK_PYTHON],[
AC_MSG_NOTICE([checking for headers and libs required to compile python extensions])
AC_REQUIRE([MOO_AC_CHECK_OS])
if test x$MOO_OS_CYGWIN != xyes; then
if test x$MOO_OS_MINGW = xyes; then
_MOO_AC_CHECK_PYTHON_MINGW([$1],[$2],[$3])
else
_MOO_AC_CHECK_PYTHON_UNIX([$1],[$2],[$3])
fi
fi
])