include(CheckCXXSourceCompiles) function(run_config_test_architecture) # Test architecture set(_arch_file "${CMAKE_CURRENT_BINARY_DIR}/architecture_test") try_compile(_arch_result "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/config.tests/arch/arch.cpp" COPY_FILE "${_arch_file}") if (NOT _arch_result) message(FATAL_ERROR "Failed to compile architecture detection file.") endif() file(STRINGS "${_arch_file}" _arch_lines LENGTH_MINIMUM 16 LENGTH_MAXIMUM 1024 ENCODING UTF-8) foreach (_line ${_arch_lines}) string(FIND "${_line}" "==Qt=magic=Qt== Architecture:" _pos) if (_pos GREATER -1) math(EXPR _pos "${_pos}+29") string(SUBSTRING "${_line}" ${_pos} -1 _architecture) endif() string(FIND "${_line}" "==Qt=magic=Qt== Sub-architecture:" _pos) if (_pos GREATER -1) math(EXPR _pos "${_pos}+34") string(SUBSTRING "${_line}" ${_pos} -1 _sub_architecture) string(REPLACE " " ";" _sub_architecture "${_sub_architecture}") endif() string(FIND "${_line}" "==Qt=magic=Qt== Build-ABI:" _pos) if (_pos GREATER -1) math(EXPR _pos "${_pos}+26") string(SUBSTRING "${_line}" ${_pos} -1 _build_abi) endif() endforeach() if (NOT _architecture OR NOT _sub_architecture OR NOT _build_abi) message(FATAL_ERROR "Failed to extract architecture data from file.") endif() set(TEST_architecture 1 CACHE INTERNAL "Ran the architecture test") set(TEST_architecture_arch "${_architecture}" CACHE INTERNAL "Target machine architecture") set(TEST_subarch 1 CACHE INTERNAL "Ran machine subArchitecture test") foreach(it ${_sub_architecture}) # Equivalent to qmake's QT_CPU_FEATURES.$arch. set(TEST_arch_${TEST_architecture_arch}_subarch_${it} 1 CACHE INTERNAL "Target sub architecture result") endforeach() set(TEST_buildAbi "${_build_abi}" CACHE INTERNAL "Target machine buildAbi") endfunction() function(run_config_test_posix_iconv) set(source "#include int main(int, char **) { iconv_t x = iconv_open(\"\", \"\"); char *inp; char *outp; size_t inbytes, outbytes; iconv(x, &inp, &inbytes, &outp, &outbytes); iconv_close(x); return 0; }") check_cxx_source_compiles("${source}" HAVE_POSIX_ICONV) if(NOT HAVE_POSIX_ICONV) set(_req_libraries "${CMAKE_REQUIRE_LIBRARIES}") set(CMAKE_REQUIRE_LIBRARIES "iconv") check_cxx_source_compiles("${source}" HAVE_POSIX_ICONV) set(CMAKE_REQUIRE_LIBRARIES "${_req_libraries}") if(HAVE_POSIX_ICONV) set(TEST_iconv_needlib 1 CACHE INTERNAL "Need to link against libiconv") endif() endif() set(TEST_posix_iconv "${HAVE_POSIX_ICONV}" CACHE INTERNAL "POSIX iconv") endfunction() function(run_config_test_sun_iconv) set(source "#include int main(int, char **) { iconv_t x = iconv_open(\"\", \"\"); const char *inp; char *outp; size_t inbytes, outbytes; iconv(x, &inp, &inbytes, &outp, &outbytes); iconv_close(x); return 0; }") if(DARWIN) # as per !config.darwin in configure.json set(HAVE_SUN_ICONV OFF) else() check_cxx_source_compiles("${source}" HAVE_SUN_ICONV) endif() set(TEST_sun_iconv "${HAVE_SUN_ICONV}" CACHE INTERNAL "SUN libiconv") endfunction() function(run_linker_version_script_support) file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/version_flag.map" "VERS_1 { global: sym; }; VERS_2 { global: sym; } VERS_1; ") if(DEFINED CMAKE_REQUIRED_FLAGS) set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS}) else() set(CMAKE_REQUIRED_FLAGS "") endif() set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script=\"${CMAKE_CURRENT_BINARY_DIR}/version_flag.map\"") check_cxx_source_compiles("int main(void){return 0;}" HAVE_LD_VERSION_SCRIPT) if(DEFINED CMAKE_REQUIRED_FLAGS_SAVE) set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE}) endif() file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map") # For some reason the linker command line written by the XCode generator, which is # subsequently executed by xcodebuild, ignores the linker flag, and thus the test # seemingly succeeds. Explicitly disable the version script test on darwin platforms. if(APPLE) set(HAVE_LD_VERSION_SCRIPT OFF) endif() set(TEST_ld_version_script "${HAVE_LD_VERSION_SCRIPT}" CACHE INTERNAL "linker version script support") endfunction() function(run_config_tests) run_config_test_posix_iconv() add_library(Iconv INTERFACE) if(TEST_iconv_needlib) target_link_libraries(Iconv PUBLIC iconv) endif() if(NOT TEST_posix_iconv) run_config_test_sun_iconv() endif() run_config_test_architecture() run_linker_version_script_support() endfunction() run_config_tests()