diff options
Diffstat (limited to 'Tests')
| -rw-r--r-- | Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt b/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt index 8b251d7..9f229f9 100644 --- a/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt +++ b/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt @@ -4,6 +4,7 @@ project(WriteCompilerDetectionHeader) set(CMAKE_INCLUDE_CURRENT_DIR ON) include(WriteCompilerDetectionHeader) +include(CheckCXXSourceCompiles) get_property(cxx_known_features GLOBAL PROPERTY CMAKE_CXX_KNOWN_FEATURES) get_property(c_known_features GLOBAL PROPERTY CMAKE_C_KNOWN_FEATURES) @@ -26,7 +27,6 @@ if (NOT CMAKE_CXX_COMPILE_FEATURES AND NOT CMAKE_C_COMPILE_FEATURES) add_executable(WriteCompilerDetectionHeader "${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp") if(UNIX OR NOT CMAKE_CXX_COMPILER_ID STREQUAL "GNU") - include(CheckCXXSourceCompiles) check_cxx_source_compiles("#include \"${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection.h\"\nint main() { return 0; }\n" file_include_works ) @@ -156,3 +156,31 @@ if (CMAKE_C_COMPILER_ID STREQUAL "GNU" set_defines(WriteCompilerDetectionHeader_C11_multi "EXPECTED_COMPILER_C_FUNCTION_PROTOTYPES;EXPECTED_COMPILER_C_RESTRICT" "") target_include_directories(WriteCompilerDetectionHeader_C11_multi PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/compiler_multi_files) endif() + +# test for ALLOW_UNKNOWN_COMPILERS + +# use a compiler does not match the current one, +# so one always hits the fallback code +if (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro") + set(OTHER_CXX "Intel") +else() + set(OTHER_CXX "SunPro") +endif() + +write_compiler_detection_header( + FILE "${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection_allow_unknown.h" + PREFIX TEST + COMPILERS ${OTHER_CXX} + FEATURES cxx_nullptr + ALLOW_UNKNOWN_COMPILERS +) + +# intentionally abuse the TEST_NULLPR variable: this will only work +# with the fallback code. +check_cxx_source_compiles("#include \"${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection_allow_unknown.h\" +int main() {\n int i = TEST_NULLPTR;\n return 0; }\n" + file_include_works_allow_unknown +) +if (NOT file_include_works_allow_unknown) + message(SEND_ERROR "Inclusion of ${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection_allow_unknown.h was expected to work, but did not.") +endif() |