Add support for determining which languages the llvm-gcc front end
supports.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36319 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.config.in b/Makefile.config.in
index 069b972..03e625b 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -188,6 +188,7 @@
 LLVMCC1PLUS := @LLVMCC1PLUS@
 LLVMGCC_VERSION := @LLVMGCC_VERSION@
 LLVMGCC_MAJVERS := @LLVMGCC_MAJVERS@
+LLVMGCC_LANGS := @LLVMGCC_LANGS@
 
 # Path to directory where object files should be stored during a build.
 # Set OBJ_ROOT to "." if you do not want to use a separate place for