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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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108495 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-07-16 01:41:38 +00:00
parent de309a8b52
commit 48bf8f0c3a
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