Merge from mainline.

Check if llvm-gcc is available before running tests. Patch by Matthijs Kooijman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_23@51413 91177308-0d34-0410-b5e6-96231b3b80d8

test/LLVMC/dg.exp

@@ -1,3 +1,10 @@
 load_lib llvm.exp
 
-RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{c,cpp}]]
+if [ llvm_gcc_supports c ] then {
+  RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{c}]]
+}
+
+if [ llvm_gcc_supports c++ ] then {
+  RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{cpp}]]
+}
+