[jhbuild] sysdeps-3.18: use llvm-config to detect clang

[Lars Uebernickel <larsu src gnome org>]

commit f2275e9d69f5007ef84e1e43aa7f9cb59c70d8c4
Author: Lars Uebernickel <lars uebernic de>
Date:   Tue Sep 22 22:49:39 2015 +0200

    sysdeps-3.18: use llvm-config to detect clang
    
    Checking for header files fails on systems that don't install clang
    headers in a standard path. Instead, check that llvm-config is in $PATH.

 modulesets/gnome-sysdeps-3.18.modules |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/modulesets/gnome-sysdeps-3.18.modules b/modulesets/gnome-sysdeps-3.18.modules
index decf4d5..007b6ce 100644
--- a/modulesets/gnome-sysdeps-3.18.modules
+++ b/modulesets/gnome-sysdeps-3.18.modules
@@ -71,7 +71,7 @@
   <systemmodule id="clang">
     <branch repo="system"/>
     <systemdependencies>
-      <dep type="c_include" name="clang-c/Index.h"/>
+      <dep type="path" name="llvm-config"/>
     </systemdependencies>
   </systemmodule>