You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
4.3 KiB
96 lines
4.3 KiB
include(${CMAKE_CURRENT_LIST_DIR}/cm_message_checks_compat.cmake)
|
|
|
|
function(cm_check_cxx_feature name)
|
|
set(TRY_RUN_FEATURE "${ARGN}")
|
|
string(TOUPPER ${name} FEATURE)
|
|
if(NOT DEFINED CMake_HAVE_CXX_${FEATURE})
|
|
cm_message_checks_compat(
|
|
"Checking if compiler supports C++ ${name}"
|
|
__checkStart __checkPass __checkFail)
|
|
message(${__checkStart})
|
|
if(CMAKE_CXX_STANDARD)
|
|
set(maybe_cxx_standard -DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD})
|
|
else()
|
|
set(maybe_cxx_standard "")
|
|
endif()
|
|
if (TRY_RUN_FEATURE)
|
|
try_run(CMake_RUN_CXX_${FEATURE} CMake_COMPILE_CXX_${FEATURE}
|
|
${CMAKE_CURRENT_BINARY_DIR}
|
|
${CMAKE_CURRENT_LIST_DIR}/cm_cxx_${name}.cxx
|
|
CMAKE_FLAGS ${maybe_cxx_standard}
|
|
OUTPUT_VARIABLE OUTPUT
|
|
)
|
|
if (CMake_RUN_CXX_${FEATURE} EQUAL "0" AND CMake_COMPILE_CXX_${FEATURE})
|
|
set(CMake_HAVE_CXX_${FEATURE} ON CACHE INTERNAL "TRY_RUN" FORCE)
|
|
else()
|
|
set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_RUN" FORCE)
|
|
endif()
|
|
else()
|
|
try_compile(CMake_HAVE_CXX_${FEATURE}
|
|
${CMAKE_CURRENT_BINARY_DIR}
|
|
${CMAKE_CURRENT_LIST_DIR}/cm_cxx_${name}.cxx
|
|
CMAKE_FLAGS ${maybe_cxx_standard}
|
|
OUTPUT_VARIABLE OUTPUT
|
|
)
|
|
endif()
|
|
set(check_output "${OUTPUT}")
|
|
# Filter out MSBuild output that looks like a warning.
|
|
string(REGEX REPLACE " +0 Warning\\(s\\)" "" check_output "${check_output}")
|
|
# Filter out MSBuild output that looks like a warning.
|
|
string(REGEX REPLACE "[^\n]*warning MSB[0-9][0-9][0-9][0-9][^\n]*" "" check_output "${check_output}")
|
|
# Filter out MSVC output that looks like a command-line warning.
|
|
string(REGEX REPLACE "[^\n]*warning D[0-9][0-9][0-9][0-9][^\n]*" "" check_output "${check_output}")
|
|
# Filter out warnings caused by user flags.
|
|
string(REGEX REPLACE "[^\n]*warning:[^\n]*-Winvalid-command-line-argument[^\n]*" "" check_output "${check_output}")
|
|
# Filter out warnings caused by local configuration.
|
|
string(REGEX REPLACE "[^\n]*warning:[^\n]*directory not found for option[^\n]*" "" check_output "${check_output}")
|
|
string(REGEX REPLACE "[^\n]*warning:[^\n]*object file compiled with -mlong-branch which is no longer needed[^\n]*" "" check_output "${check_output}")
|
|
# Filter out other warnings unrelated to feature checks.
|
|
string(REGEX REPLACE "[^\n]*warning:[^\n]*sprintf\\(\\) is often misused, please use snprintf[^\n]*" "" check_output "${check_output}")
|
|
# Filter out libhugetlbfs warnings.
|
|
string(REGEX REPLACE "[^\n]*libhugetlbfs [^\n]*: WARNING[^\n]*" "" check_output "${check_output}")
|
|
# Filter out xcodebuild warnings.
|
|
string(REGEX REPLACE "[^\n]* xcodebuild\\[[0-9]*:[0-9]*\\][^\n]*[Ww]arning: [^\n]*" "" check_output "${check_output}")
|
|
# Filter out icpc warnings
|
|
string(REGEX REPLACE "[^\n]*icpc: command line warning #10121: overriding [^\n]*" "" check_output "${check_output}")
|
|
# Filter out ld warnings.
|
|
string(REGEX REPLACE "[^\n]*ld: warning: [^\n]*" "" check_output "${check_output}")
|
|
# If using the feature causes warnings, treat it as broken/unavailable.
|
|
if(check_output MATCHES "(^|[ :])[Ww][Aa][Rr][Nn][Ii][Nn][Gg]")
|
|
set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)
|
|
endif()
|
|
if(CMake_HAVE_CXX_${FEATURE})
|
|
message(${__checkPass} "yes")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Determining if compiler supports C++ ${name} passed with the following output:\n"
|
|
"${OUTPUT}\n"
|
|
"\n"
|
|
)
|
|
else()
|
|
message(${__checkFail} "no")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Determining if compiler supports C++ ${name} failed with the following output:\n"
|
|
"${OUTPUT}\n"
|
|
"\n"
|
|
)
|
|
endif()
|
|
endif()
|
|
endfunction()
|
|
|
|
cm_check_cxx_feature(make_unique)
|
|
if(CMake_HAVE_CXX_MAKE_UNIQUE)
|
|
set(CMake_HAVE_CXX_UNIQUE_PTR 1)
|
|
endif()
|
|
cm_check_cxx_feature(unique_ptr)
|
|
if (NOT CMAKE_CXX_STANDARD LESS "17")
|
|
if (NOT CMAKE_CROSSCOMPILING OR CMAKE_CROSSCOMPILING_EMULATOR)
|
|
cm_check_cxx_feature(filesystem TRY_RUN)
|
|
else()
|
|
# In cross-compiling mode, it is not possible to check implementation bugs
|
|
# so rely only on conformance done by compilation
|
|
cm_check_cxx_feature(filesystem)
|
|
endif()
|
|
else()
|
|
set(CMake_HAVE_CXX_FILESYSTEM FALSE)
|
|
endif()
|