Don't error out if vapigen isn't found

https://bugzilla.gnome.org/show_bug.cgi?id=686039

diff --git a/m4/vapigen.m4 b/m4/vapigen.m4
index d8c86f6..df6395d 100644 (file)
--- a/m4/vapigen.m4
+++ b/m4/vapigen.m4
@@ -37,5 +37,5 @@ AC_DEFUN([VALA_PROG_VAPIGEN],
            [AC_MSG_RESULT([yes])],
            [AC_MSG_RESULT([yes])],
            [AC_MSG_RESULT([no])
-            AC_MSG_ERROR([Vala API Generator $1 not found.])])])])
+            AC_MSG_WARN([Vala API Generator $1 not found.])])])])
 ])