Hack out libexception  temporarily until the Sparc FE is improved

llvm-svn: 8166
diff --git a/llvm/runtime/GCCLibraries/Makefile b/llvm/runtime/GCCLibraries/Makefile
index 6100e23..d4c3299 100644
--- a/llvm/runtime/GCCLibraries/Makefile
+++ b/llvm/runtime/GCCLibraries/Makefile
@@ -2,6 +2,7 @@
 
 LEVEL = ../..
 PARALLEL_DIRS  := $(sort $(filter-out Output/, $(filter-out CVS/, $(wildcard */))))
+PARALLEL_DIRS := $(filter-out libexception/, $(PARALLEL_DIRS))
 
 include $(LEVEL)/Makefile.common