[gnome-builder] build: allow building with llvm 3.8

[Ting-Wei Lan <lantw src gnome org>]

commit a47dca910b08d600ccb03dc793ffd57e0da040ca
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Sat Apr 23 03:18:28 2016 +0800

    build: allow building with llvm 3.8
    
    LLVM 3.8 was released more than one month ago.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765440

 plugins/clang/configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/clang/configure.ac b/plugins/clang/configure.ac
index 63c741c..493734d 100644
--- a/plugins/clang/configure.ac
+++ b/plugins/clang/configure.ac
@@ -9,7 +9,7 @@ AC_ARG_ENABLE([clang-plugin],
 AS_IF([test "$enable_clang_plugin" != "no"],[
        real_enable_clang_plugin=$enable_clang_plugin
        enable_clang_plugin=no
-       AC_CHECK_PROGS([LLVM_CONFIG], [llvm-config-3.7 llvm-config37 llvm-config-3.6 llvm-config36 
llvm-config-3.5 llvm-config35 llvm-config], [])
+       AC_CHECK_PROGS([LLVM_CONFIG], [llvm-config-3.8 llvm-config38 llvm-config-3.7 llvm-config37 
llvm-config-3.6 llvm-config36 llvm-config-3.5 llvm-config35 llvm-config], [])
        AS_IF([test "x$LLVM_CONFIG" = "x"],[],[
                CLANG_INCLUDEDIR=`$LLVM_CONFIG --includedir`
                CLANG_CFLAGS="-I$CLANG_INCLUDEDIR"