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add_definitions(-DBUILDING_WITH_CMAKE=1)
add_definitions(-DHAVE_CONFIG_H=1)
# CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS only matters with GCC >= 4.7.0. Since this
# version, -P does not output empty lines, which currently breaks make_names.pl in
# WebCore. Investigating whether make_names.pl should be changed instead is left as an exercise to
# the reader.
if (MSVC)
# FIXME: Some codegenerators don't support paths with spaces. So use the executable name only.
get_filename_component(CODE_GENERATOR_PREPROCESSOR_EXECUTABLE ${CMAKE_CXX_COMPILER} NAME)
set(CODE_GENERATOR_PREPROCESSOR "${CODE_GENERATOR_PREPROCESSOR_EXECUTABLE} /nologo /EP")
set(CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS "${CODE_GENERATOR_PREPROCESSOR}")
else ()
set(CODE_GENERATOR_PREPROCESSOR "${CMAKE_CXX_COMPILER} -E -P -x c++")
set(CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS "${CMAKE_CXX_COMPILER} -E -x c++")
endif ()
if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> cruT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> cruT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> ruT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> ruT <TARGET> <LINK_FLAGS> <OBJECTS>")
endif ()
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
if (CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fno-exceptions -fno-strict-aliasing")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-exceptions -fno-strict-aliasing -fno-rtti")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
endif ()
option(DEBUG_FISSION "Use Debug Fission support")
if (DEBUG_FISSION)
execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if (NOT "${LD_VERSION}" MATCHES "GNU gold")
message(FATAL_ERROR "Need GNU gold linker for Debug Fission support")
endif ()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -gsplit-dwarf -fuse-ld=gold")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -gsplit-dwarf -fuse-ld=gold")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index")
endif ()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Qunused-arguments")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Qunused-arguments")
endif ()
string(TOLOWER ${CMAKE_HOST_SYSTEM_PROCESSOR} LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND "${LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR}" MATCHES "(i[3-6]86|x86)")
# To avoid out of memory when building with debug option in 32bit system.
# See https://bugs.webkit.org/show_bug.cgi?id=77327
set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "-Wl,--no-keep-memory ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")
endif ()
if (UNIX AND NOT APPLE)
set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined ${CMAKE_SHARED_LINKER_FLAGS}")
endif ()
# GTK uses the GNU installation directories as defaults.
if (NOT PORT STREQUAL "GTK")
set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Absolute path to library installation directory")
set(EXEC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Absolute path to executable installation directory")
set(LIBEXEC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Absolute path to install executables executed by the library")
endif ()
# The Ninja generator does not yet know how to build archives in pieces, and so response
# files must be used to deal with very long linker command lines.
# See https://bugs.webkit.org/show_bug.cgi?id=129771
set(CMAKE_NINJA_FORCE_RESPONSE_FILE 1)
try_compile(ATOMIC_BUILD_SUCCEEDED ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}/atomic.cpp)
if (NOT ATOMIC_BUILD_SUCCEEDED)
message(STATUS "Adding -latomic to the linker flags")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--push-state,--no-as-needed,-latomic,--pop-state")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--push-state,--no-as-needed,-latomic,--pop-state")
endif()
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