1 ##===- tools/lto/Makefile ----------------------------------*- Makefile -*-===##
3 # The LLVM Compiler Infrastructure
5 # This file is distributed under the University of Illinois Open Source
6 # License. See LICENSE.TXT for details.
8 ##===----------------------------------------------------------------------===##
13 EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
15 # Include this here so we can get the configuration of the targets
16 # that have been configured for construction. We have to do this
17 # early so we can set up LINK_COMPONENTS before including Makefile.rules
18 include $(LEVEL)/Makefile.config
20 LINK_LIBS_IN_SHARED = 1
23 LINK_COMPONENTS := $(TARGETS_TO_BUILD) ipo scalaropts linker bitreader bitwriter
25 include $(LEVEL)/Makefile.common
27 ifeq ($(HOST_OS),Darwin)
28 # Special hack to allow libLTO to have an offset version number.
29 ifdef LLVM_LTO_VERSION_OFFSET
30 LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
31 $(LLVM_LTO_VERSION_OFFSET))
33 LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
36 # set dylib internal version number to llvmCore submission number
37 ifdef LLVM_SUBMIT_VERSION
38 LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
39 -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
40 -Wl,-compatibility_version -Wl,1
42 # extra options to override libtool defaults
43 LLVMLibsOptions := $(LLVMLibsOptions) \
46 -Wl,-seg1addr -Wl,0xE0000000
48 # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
49 DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
50 ifneq ($(DARWIN_VERS),8)
51 LLVMLibsOptions := $(LLVMLibsOptions) \
52 -no-undefined -Wl,-install_name \
53 -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"