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Optionally, Clang now builds using LLVM as an external library. 

The user sets the variable CLANG_PATH_TO_LLVM_BUILD pointing to a LLVM
build directory or to a directory where LLVM was installed. When using
a non-installed LLVM build, it is necessary to set
CLANG_PATH_TO_LLVM_SOURCE as well.

llvm-svn: 124817
This commit is contained in:
Oscar Fuentes 2011-02-03 20:57:53 +00:00
parent f4202ba475
commit ce8661608b
1 changed files with 55 additions and 1 deletions
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56
clang/CMakeLists.txt
View File

@ -1,4 +1,58 @@
# Clang version information
# If we are not building as a part of LLVM, build Clang as an
# standalone project, using LLVM as an external library:
if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
project(Clang)
cmake_minimum_required(VERSION 2.8)
set(CLANG_PATH_TO_LLVM_SOURCE "" CACHE PATH
"Path to LLVM source code. Not necessary if using an installed LLVM.")
set(CLANG_PATH_TO_LLVM_BUILD "" CACHE PATH
"Path to the directory where LLVM was built or installed.")
if( CLANG_PATH_TO_LLVM_SOURCE )
if( NOT EXISTS "${CLANG_PATH_TO_LLVM_SOURCE}/cmake/config-ix.cmake" )
message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_SOURCE to the root directory of LLVM source code.")
else()
get_filename_component(LLVM_MAIN_SRC_DIR ${CLANG_PATH_TO_LLVM_SOURCE}
ABSOLUTE)
list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules")
endif()
endif()
if( NOT EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/tblgen${CMAKE_EXECUTABLE_SUFFIX}" )
message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_BUILD to a directory containing a LLVM build.")
endif()
list(APPEND CMAKE_MODULE_PATH "${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake")
get_filename_component(PATH_TO_LLVM_BUILD ${CLANG_PATH_TO_LLVM_BUILD}
ABSOLUTE)
include(AddLLVM)
include(TableGen)
include("${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake/LLVM.cmake")
include(HandleLLVMOptions)
set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
set(LLVM_MAIN_INCLUDE_DIR "${LLVM_MAIN_SRC_DIR}/include")
set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR})
include_directories("${PATH_TO_LLVM_BUILD}/include" "${LLVM_MAIN_INCLUDE_DIR}")
if( NOT PATH_TO_LLVM_BUILD STREQUAL LLVM_MAIN_SRC_DIR )
include_directories("${LLVM_MAIN_INCLUDE_DIR}")
endif()
link_directories("${PATH_TO_LLVM_BUILD}/lib")
set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/tblgen")
set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
add_definitions( -D__STDC_LIMIT_MACROS )
add_definitions( -D__STDC_CONSTANT_MACROS )
endif()
set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})