llvm/cmake/modules/Makefile
NAKAMURA Takumi 043cc54d6c Simplify linking to system libraries
The LLVMSupport library implementation consolidates all dependencies on
system libraries.  Move the logic gathering system libraries out of
'cmake/modules/LLVM-Config.cmake' and into 'lib/Support/CMakeLists.txt'.
Use the target_link_libraries() command there to tell CMake about the
link dependencies of the LLVMSupport implementation.  CMake will
automatically propagate this to all targets that link LLVMSupport
directly or indirectly.

We still need to build knowledge of system library dependencies into
'llvm-config'.  Store the list of libraries needed in a property on
LLVMSupport and teach 'tools/llvm-config/CMakeLists.txt' to retrieve it
from there.

Drop all calls to 'link_system_libs' and 'get_system_libs' from our
CMake code.  Replace their implementations with a warning that explains
the calls are no longer necessary.  Also drop from 'LLVMConfig.cmake'
the HAVE_* and related variables that were published there only to allow
'get_system_libs' to run outside our build process.

Contributed by Brad King.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201969 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-23 06:27:04 +00:00

97 lines
3.7 KiB
Makefile

##===- cmake/modules/Makefile ------------------------------*- Makefile -*-===##
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
LEVEL = ../..
LINK_COMPONENTS := all
include $(LEVEL)/Makefile.common
PROJ_cmake := $(DESTDIR)$(PROJ_prefix)/share/llvm/cmake
OBJMODS := LLVMConfig.cmake LLVMConfigVersion.cmake LLVMExports.cmake
$(PROJ_OBJ_DIR)/LLVMConfig.cmake: LLVMConfig.cmake.in $(LLVMBuildCMakeFrag)
$(Echo) 'Generating LLVM CMake package config file'
$(Verb) ( \
cat $< | sed \
-e 's/@LLVM_CONFIG_CODE@/set(LLVM_INSTALL_PREFIX "'"$(subst /,\/,$(PROJ_prefix))"'")/' \
-e 's/@LLVM_VERSION_MAJOR@/'"$(LLVM_VERSION_MAJOR)"'/' \
-e 's/@LLVM_VERSION_MINOR@/'"$(LLVM_VERSION_MINOR)"'/' \
-e 's/@PACKAGE_VERSION@/'"$(LLVMVersion)"'/' \
-e 's/@LLVM_COMMON_DEPENDS@//' \
-e 's/@LLVM_AVAILABLE_LIBS@/'"$(subst -l,,$(LLVMConfigLibs))"'/' \
-e 's/@LLVM_ALL_TARGETS@/'"$(ALL_TARGETS)"'/' \
-e 's/@LLVM_TARGETS_TO_BUILD@/'"$(TARGETS_TO_BUILD)"'/' \
-e 's/@LLVM_TARGETS_WITH_JIT@/'"$(TARGETS_WITH_JIT)"'/' \
-e 's/@TARGET_TRIPLE@/'"$(TARGET_TRIPLE)"'/' \
-e 's/@LLVM_ENABLE_TERMINFO@/'"$(ENABLE_TERMINFO)"'/' \
-e 's/@LLVM_ENABLE_THREADS@/'"$(ENABLE_THREADS)"'/' \
-e 's/@LLVM_ENABLE_ZLIB@/'"$(ENABLE_ZLIB)"'/' \
-e 's/@LLVM_NATIVE_ARCH@/'"$(LLVM_NATIVE_ARCH)"'/' \
-e 's/@LLVM_ENABLE_PIC@/'"$(ENABLE_PIC)"'/' \
-e 's/@LLVM_ON_UNIX@/'"$(LLVM_ON_UNIX)"'/' \
-e 's/@LLVM_ON_WIN32@/'"$(LLVM_ON_WIN32)"'/' \
-e 's/@LLVM_CONFIG_INCLUDE_DIRS@/'"$(subst /,\/,$(PROJ_includedir))"'/' \
-e 's/@LLVM_CONFIG_LIBRARY_DIRS@/'"$(subst /,\/,$(PROJ_libdir))"'/' \
-e 's/@LLVM_CONFIG_CMAKE_DIR@/'"$(subst /,\/,$(PROJ_cmake))"'/' \
-e 's/@LLVM_CONFIG_EXPORTS_FILE@/$${LLVM_CMAKE_DIR}\/LLVMExports.cmake/' \
-e 's/@all_llvm_lib_deps@//' \
&& \
grep '^set_property.*LLVMBUILD_LIB_DEPS_' "$(LLVMBuildCMakeFrag)" \
) > $@
$(PROJ_OBJ_DIR)/LLVMConfigVersion.cmake: LLVMConfigVersion.cmake.in
$(Echo) 'Generating LLVM CMake package version file'
$(Verb) cat $< | sed \
-e 's/@PACKAGE_VERSION@/'"$(LLVMVersion)"'/' \
> $@
$(PROJ_OBJ_DIR)/LLVMExports.cmake: $(LLVMBuildCMakeExportsFrag)
$(Echo) 'Generating LLVM CMake target exports file'
$(Verb) ( \
echo '# LLVM CMake target exports. Do not include directly.' && \
for lib in $(subst -l,,$(LLVMConfigLibs)); do \
echo 'add_library('"$$lib"' STATIC IMPORTED)' && \
echo 'set_property(TARGET '"$$lib"' PROPERTY IMPORTED_LOCATION "'"$(PROJ_libdir)/lib$$lib.a"'")' ; \
done && \
cat "$(LLVMBuildCMakeExportsFrag)" && \
echo 'set_property(TARGET LLVMSupport APPEND PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES '"$(subst -l,,$(LIBS))"')' \
) | grep -v gtest > $@
all-local:: $(addprefix $(PROJ_OBJ_DIR)/, $(OBJMODS))
SKIPSRCMODS := \
CheckAtomic.cmake \
GetHostTriple.cmake \
LLVMBuildExports.cmake \
LLVMConfig.cmake \
LLVMConfigVersion.cmake \
LLVMExports.cmake \
VersionFromVCS.cmake
SRCMODS := $(notdir $(wildcard $(PROJ_SRC_DIR)/*.cmake))
SRCMODS := $(filter-out $(SKIPSRCMODS),$(SRCMODS))
INSTSRCMODS := $(addprefix $(PROJ_cmake)/, $(SRCMODS))
INSTOBJMODS := $(addprefix $(PROJ_cmake)/, $(OBJMODS))
$(PROJ_cmake):
$(Echo) Making install directory: $@
$(Verb) $(MKDIR) $@
$(INSTSRCMODS): $(PROJ_cmake)/%.cmake: $(PROJ_SRC_DIR)/%.cmake | $(PROJ_cmake)
$(Echo) Installing cmake modules: $(notdir $<)
$(Verb) $(DataInstall) $< $(PROJ_cmake)
$(INSTOBJMODS): $(PROJ_cmake)/%.cmake: $(PROJ_OBJ_DIR)/%.cmake | $(PROJ_cmake)
$(Echo) Installing cmake modules: $(notdir $<)
$(Verb) $(DataInstall) $< $(PROJ_cmake)
install-local:: $(INSTSRCMODS) $(INSTOBJMODS)