1##===- tools/lto/Makefile ----------------------------------*- Makefile -*-===##
2# 
3#                     The LLVM Compiler Infrastructure
4#
5# This file is distributed under the University of Illinois Open Source
6# License. See LICENSE.TXT for details.
7# 
8##===----------------------------------------------------------------------===##
9
10LEVEL := ../..
11LIBRARYNAME := LTO
12LINK_COMPONENTS := all-targets core lto mc mcdisassembler support
13LINK_LIBS_IN_SHARED := 1
14SHARED_LIBRARY := 1
15
16EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
17
18include $(LEVEL)/Makefile.common
19
20ifdef LLVM_VERSION_INFO
21CXX.Flags += -DLLVM_VERSION_INFO='"$(LLVM_VERSION_INFO)"'
22endif
23
24ifeq ($(HOST_OS),Darwin)
25    # Special hack to allow libLTO to have an offset version number.
26    ifdef LLVM_LTO_VERSION_OFFSET
27        LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
28                                            $(LLVM_LTO_VERSION_OFFSET))
29    else
30        LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
31    endif
32
33    # set dylib internal version number to llvmCore submission number
34    ifdef LLVM_SUBMIT_VERSION
35        LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
36                        -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
37                        -Wl,-compatibility_version -Wl,1
38    endif
39
40    # If we're doing an Apple-style build, add the LTO object path.
41    ifeq ($(RC_XBS),YES)
42       TempFile        := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)
43       LLVMLibsOptions := $(LLVMLibsOptions) \
44                          -Wl,-object_path_lto -Wl,$(TempFile)
45    endif
46endif
47