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Fix PR1040:

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Don't rebuild llvm-config if none of the library dependencies changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32455 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2006-12-12 00:43:38 +00:00
parent 450856d01b
commit 4fbcdf61e8
1 changed files with 8 additions and 3 deletions
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11
tools/llvm-config/Makefile
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@ -29,11 +29,16 @@ SUB_LDFLAGS =
FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
LibDeps = $(PROJ_OBJ_DIR)/LibDeps.txt
LibDepsTemp = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
GenLibDeps = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
$(LibDeps): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
$(Echo) "Regenerating LibDeps.txt"
$(Verb) $(GenLibDeps) -flat $(LibDir) $(NM_PATH) > $(LibDeps)
$(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
$(Echo) "Regenerating LibDeps.txt.tmp"
$(Verb) $(GenLibDeps) -flat $(LibDir) $(NM_PATH) > $(LibDepsTemp)
$(LibDeps): $(LibDepsTemp)
$(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
$(EchoCmd) Updated LibDeps.txt because dependencies changes )
# Find all the cyclic dependencies between various LLVM libraries, so we
# don't have to process them at runtime.