Fix a race condition in the makefile andrew reported

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29227 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/VMCore/Makefile b/lib/VMCore/Makefile
index af3ae403b93d0d6567716071fab5a569d7568022..a5ac4d0287ecc419226505072f2bd966c64ce0aa 100644 (file)
--- a/lib/VMCore/Makefile
+++ b/lib/VMCore/Makefile
@@ -19,7 +19,7 @@ GENFILE:=$(PROJ_SRC_ROOT)/include/llvm/Intrinsics.gen
 INTRINSICTD  := $(PROJ_SRC_ROOT)/include/llvm/Intrinsics.td
 INTRINSICTDS := $(wildcard $(PROJ_SRC_ROOT)/include/llvm/Intrinsics*.td)
 
-$(ObjDir)/Intrinsics.gen.tmp: $(INTRINSICTDS) $(TBLGEN)
+$(ObjDir)/Intrinsics.gen.tmp: $(ObjDir)/.dir $(INTRINSICTDS) $(TBLGEN)
        $(Echo) Building Intrinsics.gen.tmp from Intrinsics.td
        $(Verb) $(TableGen) $(INTRINSICTD) -o $@ -gen-intrinsic