If a cycle exists, don't succeed building the second time around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30076 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvm-config/Makefile b/tools/llvm-config/Makefile
index 5856196..fe4993d 100644 (file)
--- a/tools/llvm-config/Makefile
+++ b/tools/llvm-config/Makefile
@@ -39,7 +39,7 @@ $(LibDeps): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
 # don't have to process them at runtime.
 $(FinalLibDeps): find-cycles.pl $(LibDeps)
        $(Echo) "Finding cyclic dependencies between LLVM libraries."
-       $(Verb) $(PERL) $< < $(LibDeps) > $@
+       $(Verb) $(PERL) $< < $(LibDeps) > $@ || rm -f $@
 
 # Rerun our configure substitutions as needed.
 ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in