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Provide CMake package modules in install tree
Teach the Makefile build system to generate and install CMake modules LLVMConfig.cmake and LLVMConfigVersion.cmake so that applications that build with CMake can use 'find_package(LLVM)' even when LLVM is not built with CMake. These modules tell such applications about available LLVM libraries and their dependencies. Run llvm-config to generate the list of libraries and use the results of llvm-build to generate the library dependencies. Use sed to perform substitutions in the LLVMConfig.cmake.in and LLVMConfigVersion.cmake.in sources that our CMake build system uses. Teach the Makefile build system to generate the LLVMExports.cmake file with content similar to that produced by the CMake install(EXPORT) command. Extend llvm-build with an option to generate the library dependencies fragment for this file. Contributed by Brad King. llvm-svn: 201053
This commit is contained in:
NAKAMURA Takumi
parent
c16e56a234
commit
1aa7442231
4
Makefile
4
Makefile
@ -15,7 +15,7 @@ LEVEL := .
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# 3. Build IR, which builds the Intrinsics.inc file used by libs.
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# 4. Build libs, which are needed by llvm-config.
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# 5. Build llvm-config, which determines inter-lib dependencies for tools.
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# 6. Build tools and docs.
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# 6. Build tools, docs, and cmake modules.
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#
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# When cross-compiling, there are some things (tablegen) that need to
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# be build for the build system first.
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@ -31,7 +31,7 @@ ifeq ($(BUILD_DIRS_ONLY),1)
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OPTIONAL_DIRS := tools/clang/utils/TableGen
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else
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DIRS := lib/Support lib/TableGen utils lib/IR lib tools/llvm-shlib \
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tools/llvm-config tools docs unittests
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tools/llvm-config tools docs cmake unittests
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OPTIONAL_DIRS := projects bindings
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endif
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@ -78,6 +78,12 @@ LLVMBuildTool := $(PROJ_SRC_ROOT)/utils/llvm-build/llvm-build
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# The files we are going to generate using llvm-build.
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LLVMBuildMakeFrag := $(PROJ_OBJ_ROOT)/Makefile.llvmbuild
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LLVMBuildCMakeFrag := $(PROJ_OBJ_ROOT)/LLVMBuild.cmake
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LLVMBuildCMakeExportsFrag := $(PROJ_OBJ_ROOT)/cmake/modules/LLVMBuildExports.cmake
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LLVMBuildMakeFrags := \
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$(LLVMBuildMakeFrag) \
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$(LLVMBuildCMakeFrag) \
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$(LLVMBuildCMakeExportsFrag)
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LLVMConfigLibraryDependenciesInc := \
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$(PROJ_OBJ_ROOT)/tools/llvm-config/LibraryDependencies.inc
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@ -94,7 +100,7 @@ endif
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#
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# We include a dependency on this Makefile to ensure that changes to the
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# generation command get picked up.
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$(LLVMBuildMakeFrag): $(PROJ_SRC_ROOT)/Makefile.rules \
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$(LLVMBuildMakeFrags): $(PROJ_SRC_ROOT)/Makefile.rules \
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$(PROJ_OBJ_ROOT)/Makefile.config
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$(Echo) Constructing LLVMBuild project information.
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$(Verb)$(PYTHON) $(LLVMBuildTool) \
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@ -102,10 +108,12 @@ $(LLVMBuildMakeFrag): $(PROJ_SRC_ROOT)/Makefile.rules \
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--enable-targets "$(TARGETS_TO_BUILD)" \
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--enable-optional-components "$(OPTIONAL_COMPONENTS)" \
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--write-library-table $(LLVMConfigLibraryDependenciesInc) \
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--write-make-fragment $(LLVMBuildMakeFrag)
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--write-make-fragment $(LLVMBuildMakeFrag) \
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--write-cmake-fragment $(LLVMBuildCMakeFrag) \
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--write-cmake-exports-fragment $(LLVMBuildCMakeExportsFrag)
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# For completeness, let Make know how the extra files are generated.
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$(LLVMConfigLibraryDependenciesInc): $(LLVMBuildMakeFrag)
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$(LLVMConfigLibraryDependenciesInc): $(LLVMBuildMakeFrags)
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# Include the generated Makefile fragment.
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#
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@ -120,7 +128,7 @@ LLVMBUILD_INCLUDE_DEPENDENCIES := 1
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# Clean the generated makefile fragment at the top-level.
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clean-local::
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-$(Verb) $(RM) -f $(LLVMBuildMakeFrag)
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-$(Verb) $(RM) -f $(LLVMBuildMakeFrags)
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endif
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-include $(LLVMBuildMakeFrag)
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12
cmake/Makefile
Normal file
12
cmake/Makefile
Normal file
@ -0,0 +1,12 @@
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##===- cmake/Makefile --------------------------------------*- Makefile -*-===##
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is distributed under the University of Illinois Open Source
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# License. See LICENSE.TXT for details.
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#
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##===----------------------------------------------------------------------===##
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LEVEL = ..
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DIRS := modules
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include $(LEVEL)/Makefile.common
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106
cmake/modules/Makefile
Normal file
106
cmake/modules/Makefile
Normal file
@ -0,0 +1,106 @@
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##===- cmake/modules/Makefile ------------------------------*- Makefile -*-===##
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is distributed under the University of Illinois Open Source
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# License. See LICENSE.TXT for details.
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#
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##===----------------------------------------------------------------------===##
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LEVEL = ../..
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LINK_COMPONENTS := all
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include $(LEVEL)/Makefile.common
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PROJ_cmake := $(DESTDIR)$(PROJ_prefix)/share/llvm/cmake
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OBJMODS := LLVMConfig.cmake LLVMConfigVersion.cmake LLVMExports.cmake
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# TODO: Teach LLVM-Config.cmake to work without explicit terminfo libs.
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TERMINFO_LIBS := tinfo terminfo curses ncurses ncursesw
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TERMINFO_LIBS := $(filter $(TERMINFO_LIBS),$(subst -l,,$(LIBS)))
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$(PROJ_OBJ_DIR)/LLVMConfig.cmake: LLVMConfig.cmake.in $(LLVMBuildCMakeFrag)
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$(Echo) 'Generating LLVM CMake package config file'
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$(Verb) ( \
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cat $< | sed \
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-e 's/@LLVM_CONFIG_CODE@/set(LLVM_INSTALL_PREFIX "'"$(subst /,\/,$(PROJ_prefix))"'")/' \
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-e 's/@LLVM_VERSION_MAJOR@/'"$(LLVM_VERSION_MAJOR)"'/' \
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-e 's/@LLVM_VERSION_MINOR@/'"$(LLVM_VERSION_MINOR)"'/' \
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-e 's/@PACKAGE_VERSION@/'"$(LLVMVersion)"'/' \
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-e 's/@LLVM_COMMON_DEPENDS@//' \
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-e 's/"@llvm_libs@"/'"$(subst -l,,$(LLVMConfigLibs))"'/' \
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-e 's/@LLVM_ALL_TARGETS@/'"$(ALL_TARGETS)"'/' \
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-e 's/@LLVM_TARGETS_TO_BUILD@/'"$(TARGETS_TO_BUILD)"'/' \
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-e 's/@LLVM_TARGETS_WITH_JIT@/'"$(TARGETS_WITH_JIT)"'/' \
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-e 's/@TARGET_TRIPLE@/'"$(TARGET_TRIPLE)"'/' \
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-e 's/@LLVM_ENABLE_TERMINFO@/'"$(ENABLE_TERMINFO)"'/' \
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-e 's/@LLVM_ENABLE_THREADS@/'"$(ENABLE_THREADS)"'/' \
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-e 's/@LLVM_ENABLE_ZLIB@/'"$(ENABLE_ZLIB)"'/' \
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-e 's/@LLVM_NATIVE_ARCH@/'"$(LLVM_NATIVE_ARCH)"'/' \
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-e 's/@LLVM_ENABLE_PIC@/'"$(ENABLE_PIC)"'/' \
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-e 's/@HAVE_TERMINFO@/'"$(HAVE_TERMINFO)"'/' \
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-e 's/@TERMINFO_LIBS@/'"$(TERMINFO_LIBS)"'/' \
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-e 's/@HAVE_LIBDL@/'"$(HAVE_DLOPEN)"'/' \
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-e 's/@HAVE_LIBPTHREAD@/'"$(HAVE_PTHREAD)"'/' \
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-e 's/@HAVE_LIBZ@/'"$(HAVE_LIBZ)"'/' \
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-e 's/@LLVM_ON_UNIX@/'"$(LLVM_ON_UNIX)"'/' \
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-e 's/@LLVM_ON_WIN32@/'"$(LLVM_ON_WIN32)"'/' \
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-e 's/@LLVM_CONFIG_INCLUDE_DIRS@/'"$(subst /,\/,$(PROJ_includedir))"'/' \
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-e 's/@LLVM_CONFIG_LIBRARY_DIRS@/'"$(subst /,\/,$(PROJ_libdir))"'/' \
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-e 's/@LLVM_CONFIG_CMAKE_DIR@/'"$(subst /,\/,$(PROJ_cmake))"'/' \
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-e 's/@LLVM_CONFIG_EXPORTS_FILE@/$${LLVM_CMAKE_DIR}\/LLVMExports.cmake/' \
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-e 's/@all_llvm_lib_deps@//' \
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&& \
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# TODO: Teach LLVM-Config.cmake to use builtin CMake features \
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# for library dependencies. For now add the generated fragments. \
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grep '^set_property.*LLVMBUILD_LIB_DEPS_' "$(LLVMBuildCMakeFrag)" \
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) > $@
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$(PROJ_OBJ_DIR)/LLVMConfigVersion.cmake: LLVMConfigVersion.cmake.in
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$(Echo) 'Generating LLVM CMake package version file'
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$(Verb) cat $< | sed \
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-e 's/@PACKAGE_VERSION@/'"$(LLVMVersion)"'/' \
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> $@
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$(PROJ_OBJ_DIR)/LLVMExports.cmake: $(LLVMBuildCMakeExportsFrag)
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$(Echo) 'Generating LLVM CMake target exports file'
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$(Verb) ( \
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echo '# LLVM CMake target exports. Do not include directly.' && \
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for lib in $(subst -l,,$(LLVMConfigLibs)); do \
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echo 'add_library('"$$lib"' STATIC IMPORTED)' && \
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echo 'set_property(TARGET '"$$lib"' PROPERTY IMPORTED_LOCATION "'"$(PROJ_libdir)/lib$$lib.a"'")' ; \
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done && \
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cat "$(LLVMBuildCMakeExportsFrag)" \
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) > $@
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all-local:: $(addprefix $(PROJ_OBJ_DIR)/, $(OBJMODS))
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SKIPSRCMODS := \
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CheckAtomic.cmake \
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GetHostTriple.cmake \
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LLVMBuildExports.cmake \
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LLVMConfig.cmake \
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LLVMConfigVersion.cmake \
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LLVMExports.cmake \
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VersionFromVCS.cmake
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SRCMODS := $(notdir $(wildcard $(PROJ_SRC_DIR)/*.cmake))
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SRCMODS := $(filter-out $(SKIPSRCMODS),$(SRCMODS))
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INSTSRCMODS := $(addprefix $(PROJ_cmake)/, $(SRCMODS))
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INSTOBJMODS := $(addprefix $(PROJ_cmake)/, $(OBJMODS))
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$(PROJ_cmake):
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$(Echo) Making install directory: $@
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$(Verb) $(MKDIR) $@
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$(INSTSRCMODS): $(PROJ_cmake)/%.cmake: $(PROJ_SRC_DIR)/%.cmake | $(PROJ_cmake)
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$(Echo) Installing cmake modules: $(notdir $<)
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$(Verb) $(DataInstall) $< $(PROJ_cmake)
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$(INSTOBJMODS): $(PROJ_cmake)/%.cmake: $(PROJ_OBJ_DIR)/%.cmake | $(PROJ_cmake)
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$(Echo) Installing cmake modules: $(notdir $<)
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$(Verb) $(DataInstall) $< $(PROJ_cmake)
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install-local:: $(INSTSRCMODS) $(INSTOBJMODS)
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@ -573,6 +573,40 @@ set_property(GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_%s %s)\n""" % (
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f.close()
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def write_cmake_exports_fragment(self, output_path):
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"""
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write_cmake_exports_fragment(output_path) -> None
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Generate a CMake fragment which includes LLVMBuild library
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dependencies expressed similarly to how CMake would write
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them via install(EXPORT).
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"""
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dependencies = list(self.get_fragment_dependencies())
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# Write out the CMake exports fragment.
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make_install_dir(os.path.dirname(output_path))
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f = open(output_path, 'w')
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f.write("""\
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# Explicit library dependency information.
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#
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# The following property assignments tell CMake about link
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# dependencies of libraries imported from LLVM.
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""")
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for ci in self.ordered_component_infos:
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# We only write the information for libraries currently.
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if ci.type_name != 'Library':
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continue
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f.write("""\
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set_property(TARGET %s PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES %s)\n""" % (
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ci.get_prefixed_library_name(), " ".join(sorted(
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dep.get_prefixed_library_name()
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for dep in self.get_required_libraries_for_component(ci)))))
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f.close()
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def write_make_fragment(self, output_path):
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"""
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write_make_fragment(output_path) -> None
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@ -780,6 +814,10 @@ def main():
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dest="write_cmake_fragment", metavar="PATH",
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help="Write the CMake project information to PATH",
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action="store", default=None)
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group.add_option("", "--write-cmake-exports-fragment",
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dest="write_cmake_exports_fragment", metavar="PATH",
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help="Write the CMake exports information to PATH",
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action="store", default=None)
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group.add_option("", "--write-make-fragment",
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dest="write_make_fragment", metavar="PATH",
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help="Write the Makefile project information to PATH",
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@ -861,6 +899,8 @@ given by --build-root) at the same SUBPATH""",
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# Write out the cmake fragment, if requested.
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if opts.write_cmake_fragment:
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project_info.write_cmake_fragment(opts.write_cmake_fragment)
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if opts.write_cmake_exports_fragment:
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project_info.write_cmake_exports_fragment(opts.write_cmake_exports_fragment)
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# Configure target definition files, if requested.
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if opts.configure_target_def_files:
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