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Tests: Make CompileFeature tests use highest standard known.

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Remove the use of check_cxx_source_compiles which is now just getting in
the way.

Blacklist the cxx_alignof feature in the test with GNU 4.7. The test
file compiles, but it is documented as available first in GNU 4.8.
This commit is contained in:
Stephen Kelly 2013-10-21 16:59:40 +02:00
parent 3547a00d77
commit f5bf9d4311
3 changed files with 31 additions and 3 deletions
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2
Modules/Compiler/GNU-CXX-FeatureTests.cmake
View File

@ -8,6 +8,8 @@ set(_cmake_feature_test_cxx_decltype_incomplete_return_types "${GNU481_CXX11}")
set(_cmake_feature_test_cxx_reference_qualified_functions "${GNU481_CXX11}")
set(GNU48_CXX11 "(__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L")
set(_cmake_feature_test_cxx_alignas "${GNU48_CXX11}")
# The alignof feature works with GNU 4.7 and -std=c++11, but it is documented
# as available with GNU 4.8, so treat that as true.
set(_cmake_feature_test_cxx_alignof "${GNU48_CXX11}")
set(_cmake_feature_test_cxx_attributes "${GNU48_CXX11}")
set(_cmake_feature_test_cxx_inheriting_constructors "${GNU48_CXX11}")

22
Tests/CompileFeatures/CMakeLists.txt
View File

@ -27,13 +27,29 @@ foreach(feature ${cxx_features})
run_test(${feature} CXX)
endforeach()
if (CMAKE_CXX_COMPILER_ID STREQUAL GNU
AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
list(REMOVE_ITEM CXX_non_features
cxx_alignof
)
endif()
if (CMAKE_CXX_COMPILE_FEATURES)
include(CheckCXXSourceCompiles)
foreach(feature ${CXX_non_features})
check_cxx_source_compiles("#include \"${CMAKE_CURRENT_SOURCE_DIR}/${feature}.cpp\"\nint main() { return 0; }\n" ${feature}_works)
message("Testing feature : ${feature}")
try_compile(${feature}_works
"${CMAKE_CURRENT_BINARY_DIR}/${feature}_test"
"${CMAKE_CURRENT_SOURCE_DIR}/feature_test.cpp"
COMPILE_DEFINITIONS "-DTEST=${CMAKE_CURRENT_SOURCE_DIR}/${feature}.cpp"
CMAKE_FLAGS "-DCMAKE_CXX_STANDARD=11"
OUTPUT_VARIABLE OUTPUT
)
if (${feature}_works)
message(SEND_ERROR
"Feature ${feature} expected not to work for ${CMAKE_CXX_COMPILER_ID}-${CMAKE_CXX_COMPILER_VERSION}. Update the supported features or blacklist it.")
"Feature ${feature} expected not to work for ${CMAKE_CXX_COMPILER_ID}-${CMAKE_CXX_COMPILER_VERSION}.
Update the supported features or blacklist it.\n${OUTPUT}")
else()
message("Testing feature : ${feature} -- Fails, as expected.")
endif()
endforeach()
endif()

10
Tests/CompileFeatures/feature_test.cpp Normal file
View File

@ -0,0 +1,10 @@
#define STRINGIFY_IMPL(X) #X
#define STRINGIFY(X) STRINGIFY_IMPL(X)
#include STRINGIFY(TEST)
int main()
{
return 0;
}