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cmake_minimum_required(VERSION 2.8.12)
project(CompileOptions)
add_library(testlib other.cpp)
if(TEST_FORTRAN)
enable_language(Fortran)
endif()
add_executable(CompileOptions main.cpp)
macro(get_compiler_test_genex lst lang)
list(APPEND ${lst} -DTEST_${lang}_COMPILER_VERSION="$<${lang}_COMPILER_VERSION>")
list(APPEND ${lst} -DTEST_${lang}_COMPILER_VERSION_EQUALITY=$<${lang}_COMPILER_VERSION:${CMAKE_${lang}_COMPILER_VERSION}>)
endmacro()
get_compiler_test_genex(c_tests C)
get_compiler_test_genex(cxx_tests CXX)
if(TEST_FORTRAN)
get_compiler_test_genex(fortran_tests Fortran)
endif()
set_property(TARGET CompileOptions PROPERTY COMPILE_OPTIONS
"-DTEST_DEFINE"
"-DNEEDS_ESCAPE=\"E$CAPE\""
"$<$<CXX_COMPILER_ID:GNU>:-DTEST_DEFINE_GNU>"
"$<$<COMPILE_LANG_AND_ID:CXX,GNU>:-DTEST_DEFINE_CXX_AND_GNU>"
"SHELL:" # produces no options
${c_tests}
${cxx_tests}
${fortran_tests}
)
if(BORLAND OR WATCOM)
# these compilers do not support separate -D flags
target_compile_definitions(CompileOptions PRIVATE NO_DEF_TESTS)
else()
set_property(TARGET CompileOptions APPEND PROPERTY COMPILE_OPTIONS
"SHELL:-D DEF_A"
"$<1:SHELL:-D DEF_B>"
"SHELL:-D 'DEF_C' -D \"DEF_D\""
[[SHELL:-D "DEF_STR=\"string with spaces\""]]
)
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang|Borland|Embarcadero" AND NOT "${CMAKE_GENERATOR}" MATCHES "NMake Makefiles")
set_property(TARGET CompileOptions APPEND PROPERTY COMPILE_OPTIONS
"-DTEST_OCTOTHORPE=\"#\""
)
endif()
target_link_libraries(CompileOptions testlib)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
target_compile_definitions(CompileOptions
PRIVATE
"DO_GNU_TESTS"
)
endif()
target_compile_definitions(CompileOptions
PRIVATE
"EXPECTED_C_COMPILER_VERSION=\"${CMAKE_C_COMPILER_VERSION}\""
"EXPECTED_CXX_COMPILER_VERSION=\"${CMAKE_CXX_COMPILER_VERSION}\""
)
if(TEST_FORTRAN)
# Definitions for the C++ code to test the values
target_compile_definitions(CompileOptions
PRIVATE
"TEST_FORTRAN"
"EXPECTED_Fortran_COMPILER_VERSION=\"${CMAKE_Fortran_COMPILER_VERSION}\""
)
endif()
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