This is need because of clang-tblgen
Differential Revision: https://reviews.llvm.org/D26483
llvm-svn: 286560
if (buildtype)
set(build_type_flags "-DCMAKE_BUILD_TYPE=${buildtype}")
endif()
+ if (LLVM_EXTERNAL_CLANG_SOURCE_DIR)
+ # Propagate LLVM_EXTERNAL_CLANG_SOURCE_DIR so that clang-tblgen can be built
+ set(external_clang_dir "-DLLVM_EXTERNAL_CLANG_SOURCE_DIR=${LLVM_EXTERNAL_CLANG_SOURCE_DIR}")
+ endif()
execute_process(COMMAND ${CMAKE_COMMAND} ${build_type_flags}
-G "${CMAKE_GENERATOR}" -DLLVM_TARGETS_TO_BUILD=${LLVM_TARGETS_TO_BUILD}
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
-DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE
+ ${external_clang_dir}
WORKING_DIRECTORY ${LLVM_${target_name}_BUILD} )
endif(NOT IS_DIRECTORY ${LLVM_${target_name}_BUILD})