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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 ${_arch_lines})
string(LENGTH "${line}" lineLength)
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 AND ${lineLength} GREATER 33)
math(EXPR _pos "${_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}" ${_pos} -1 _build_abi)
endif()
endforeach()
if (NOT _architecture OR NOT _build_abi)
message(FATAL_ERROR "Failed to extract architecture data from file.")
endif()
set(TEST_architecture 1 CACHE INTERNAL "Ran the architecture test")
set(TEST_architecture_arch "${_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 "${_build_abi}" CACHE INTERNAL "Target machine buildAbi")
endfunction()
function(run_config_test_posix_iconv)
set(source "#include <iconv.h>
int main(int, char **)
{
iconv_t x = iconv_open(\"\", \"\");
char *inp;
char *outp;
size_t inbytes, outbytes;
iconv(x, &inp, &inbytes, &outp, &outbytes);
iconv_close(x);
return 0;
}")
check_cxx_source_compiles("${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 <iconv.h>
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()
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