[gedit-code-assistance] Improved clang not found in configure status

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 75b1d4ff4355b271641e429cecfb0b0ff218b869
Author: Jesse van den Kieboom <jesse vandenkieboom epfl ch>
Date:   Mon Oct 15 15:34:34 2012 +0200

    Improved clang not found in configure status

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 36ddbab..4a7156e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,6 +53,7 @@ AC_SUBST(GCP_CFLAGS)
 AC_PATH_PROG([LLVM_CONFIG], [llvm-config], [])
 
 if test "x$LLVM_CONFIG" = "x"; then
+	clang_enabled=no
 	AC_MSG_WARN([could not find llvm-config])
 else
 	dnl find out the libdir of llvm