[gnome-builder] build: move llvm-config to the top

[Christian Hergert <chergert src gnome org>]

commit 891a57531e2ccdb6217af9fbcebc217f79b287f2
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Sun May 7 23:06:53 2017 +0800

    build: move llvm-config to the top
    
    If llvm-config exists, it should be the default LLVM version on the
    system and we should use it by default. This change also syncs the
    list with meson.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=782296

 plugins/clang/configure.ac |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/plugins/clang/configure.ac b/plugins/clang/configure.ac
index ffb66c6..1a9add9 100644
--- a/plugins/clang/configure.ac
+++ b/plugins/clang/configure.ac
@@ -10,13 +10,14 @@ 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 \
                llvm-config-4.0 llvm-config40 \
                llvm-config-3.9 llvm-config39 \
                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 llvm-config-devel], [])
+               llvm-config-devel], [])
        AS_IF([test "x$LLVM_CONFIG" = "x"],[],[
                CLANG_INCLUDEDIR=`$LLVM_CONFIG --includedir`
                CLANG_CFLAGS="-I$CLANG_INCLUDEDIR"