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build/Darwin: Add an LLVM_LTO_VERSION_OFFSET make variable to allow offsetting

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the libLTO library version from the actual build version.

llvm-svn: 108495
This commit is contained in:
Daniel Dunbar 2010-07-16 01:41:38 +00:00
parent 5eef314caf
commit b55ca8e447
1 changed files with 9 additions and 1 deletions
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10
tools/lto/Makefile
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@ -25,10 +25,18 @@ LINK_COMPONENTS := $(TARGETS_TO_BUILD) ipo scalaropts linker bitreader bitwriter
include $(LEVEL)/Makefile.common
ifeq ($(HOST_OS),Darwin)
# Special hack to allow libLTO to have an offset version number.
ifdef LLVM_LTO_VERSION_OFFSET
LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
$(LLVM_LTO_VERSION_OFFSET))
else
LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
endif
# set dylib internal version number to llvmCore submission number
ifdef LLVM_SUBMIT_VERSION
LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
-Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
-Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
-Wl,-compatibility_version -Wl,1
endif
# extra options to override libtool defaults