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# Creative Commons has made the contents of this file
# available under a CC-GNU-LGPL license:
#
# http://creativecommons.org/licenses/LGPL/2.1/
#
# A copy of the full license can be found as part of this
# distribution in the file COPYING.
#
# You may use the liblicense software in accordance with the
# terms of that license. You agree that you are solely
# responsible for your use of the liblicense software and you
# represent and warrant to Creative Commons that your use
# of the liblicense software will comply with the CC-GNU-LGPL.
#
# Copyright 2007, Creative Commons, www.creativecommons.org.
# Copyright 2007, Jason Kivlighn.
# Copyright (C) 2007 Peter Miller
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"
])
dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
dnl example:
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
AC_DEFUN([AS_AC_EXPAND],
[
EXP_VAR=[$1]
FROM_VAR=[$2]
dnl first expand prefix and exec_prefix if necessary
prefix_save=$prefix
exec_prefix_save=$exec_prefix
dnl if no prefix given, then use /usr/local, the default prefix
if test "x$prefix" = "xNONE"; then
prefix="$ac_default_prefix"
fi
dnl if no exec_prefix given, then use prefix
if test "x$exec_prefix" = "xNONE"; then
exec_prefix=$prefix
fi
full_var="$FROM_VAR"
dnl loop until it doesn't change anymore
while true; do
new_full_var="`eval echo $full_var`"
if test "x$new_full_var" = "x$full_var"; then break; fi
full_var=$new_full_var
done
dnl clean up
full_var=$new_full_var
AC_SUBST([$1], "$full_var")
dnl restore prefix and exec_prefix
prefix=$prefix_save
exec_prefix=$exec_prefix_save
])
dnl @synopsis AC_ADD_CFLAGS
dnl
dnl Add the given option to CFLAGS, if it doesn't break the compiler
dnl
AC_DEFUN([AC_ADD_CFLAGS],
[AC_MSG_CHECKING([if $CC accepts $1])
ac_add_cflags__old_cflags="$CFLAGS"
CFLAGS="$CFLAGS $1"
AC_TRY_LINK([#include <stdio.h>],
[printf("Hello, World!\n"); return 0;],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
CFLAGS="$ac_add_cflags__old_cflags")
])
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