1 files changed, 81 insertions, 0 deletions
diff --git a/m4/cython.m4 b/m4/cython.m4
new file mode 100644
index 00000000..2d98eee7
--- /dev/null
+++ b/m4/cython.m4
@@ -0,0 +1,81 @@
+dnl Taken from the python bindings to the Enlightenment foundation libraries, 
+dnl and was part of a GPL package. I have included this file to fix the build.
+dnl
+dnl
+dnl AM_CHECK_CYTHON([VERSION [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]])
+dnl Check if a Cython version is installed
+dnl Defines CYTHON_VERSION and CYTHON_FOUND
+AC_DEFUN([AM_CHECK_CYTHON],
+[
+AC_REQUIRE([AM_PATH_PYTHON])
+ifelse([$1], [], [_msg=""], [_msg=" >= $1"])
+AC_MSG_CHECKING(for Cython$_msg)
+AC_CACHE_VAL(py_cv_cython, [
+
+prog="import Cython.Compiler.Version; print Cython.Compiler.Version.version"
+CYTHON_VERSION=`$PYTHON -c "$prog" 2>&AC_FD_CC`
+
+py_cv_cython=no
+if test "x$CYTHON_VERSION" != "x"; then
+   py_cv_cython=yes
+fi
+
+if test "x$py_cv_cython" = "xyes"; then
+   ifelse([$1], [], [:],
+      AS_VERSION_COMPARE([$CYTHON_VERSION], [$1], [py_cv_cython=no]))
+fi
+])
+
+AC_MSG_RESULT([$py_cv_cython])
+
+if test "x$py_cv_cython" = "xyes"; then
+   CYTHON_FOUND=yes
+   ifelse([$2], [], [:], [$2])
+else
+   CYTHON_FOUND=no
+   ifelse([$3], [], [AC_MSG_ERROR([Could not find usable Cython$_msg])], [$3])
+fi
+])
+
+dnl AM_CHECK_CYTHON_PRECOMPILED(FILE-LIST [, ACTION-IF-ALL [, ACTION-IF-NOT-ALL]])
+dnl given a list of files ending in .pyx (FILE-LIST), check if their .c
+dnl counterpart exists and is not older than the source.
+dnl    ACTION-IF-ALL is called only if no files failed the check and thus
+dnl       all pre-generated files are usable.
+dnl    ACTION-IF-NOT-ALL is called if some or all failed. If not provided,
+dnl       an error will be issued.
+AC_DEFUN([AM_CHECK_CYTHON_PRECOMPILED],
+[
+_to_check_list="$1"
+_failed_list=""
+_exists_list=""
+
+for inf in $_to_check_list; do
+    outf=`echo "$inf" | sed -e 's/^\(.*\)[.]pyx$/\1.c/'`
+    if test "$outf" = "$inf"; then
+       AC_MSG_WARN([File to check must end in .pyx, but got: $inf -- Skip])
+       continue
+    fi
+
+    AC_MSG_CHECKING([for pre-generated $outf for $inf])
+    if ! test -f "$outf"; then
+       _res=no
+       _failed_list="${_failed_list} $outf"
+    elif ! test "$outf" -nt "$inf"; then
+       _res="no (older)"
+       _failed_list="${_failed_list} $outf"
+    else
+       _res=yes
+       _exists_list="${_exists_list} $outf"
+    fi
+    AC_MSG_RESULT($_res)
+done
+
+if test -z "$_failed_list" -a -n "$_exists_list"; then
+   ifelse([$2], [], [:], [$2])
+else
+   ifelse([$3], [],
+   [AC_MSG_ERROR([Missing pre-generated files: $_failed_list])],
+   [$3])
+fi
+])