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cmake_minimum_required(VERSION 2.8.5 FATAL_ERROR)
project(GenerateExportHeader)
set( CMAKE_INCLUDE_CURRENT_DIR ON )
macro(TEST_FAIL value msg)
if (${value})
message (SEND_ERROR "Test fail:" ${msg} ${Out} )
endif ()
endmacro()
macro(TEST_PASS value msg)
if (NOT ${value})
message (SEND_ERROR "Test fail:" ${msg} ${Out} )
endif ()
endmacro()
# We seem to get race conditions is writing this stuff to the same file at least on MinGW
# So to write to separate source and build directories, we use a count to differentiate.
set (COUNT 0)
macro(_do_build Include Library LibrarySource Source)
math(EXPR COUNT "${COUNT} + 1" )
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test${COUNT}/src.cpp" "#include \"${Include}\"\n"
"int main() { ${Source}; }\n"
)
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/../${LibrarySource}" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/test${COUNT}")
if ("${Library}" STREQUAL "static_variant")
set(CONDITIONAL_STATIC_DEFINE "add_definitions(-DLIBSHARED_AND_STATIC_STATIC_DEFINE)\n")
endif()
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test${COUNT}/CMakeLists.txt"
"cmake_minimum_required(VERSION 2.8)\n"
"project(compiletest)\n"
"set(CMAKE_INCLUDE_CURRENT_DIR ON)\n"
"include(GenerateExportHeader)\n"
"add_compiler_export_flags()\n"
"if(CMAKE_COMPILER_IS_GNUCXX OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))\n"
" add_definitions(-Werror)\n"
"else()\n"
" if(MSVC)\n"
# Treat deprecation warnings as errors.
" add_definitions(/we4996)\n"
" endif()\n"
"endif()\n"
"if(MSVC)\n"
" add_definitions(-DCOMPILER_IS_MSVC)\n"
"endif()\n"
"add_subdirectory(${LibrarySource})\n"
"include_directories(${LibrarySource} \${CMAKE_CURRENT_BINARY_DIR}/${LibrarySource})\n"
"${CONDITIONAL_STATIC_DEFINE}"
"add_executable(compiletest src.cpp)\n"
"target_link_libraries(compiletest ${Library})\n"
)
try_compile(Result ${CMAKE_CURRENT_BINARY_DIR}/fail${COUNT}
${CMAKE_CURRENT_BINARY_DIR}/test${COUNT}
compilefail
OUTPUT_VARIABLE Out
)
endmacro()
if (CMAKE_COMPILER_IS_GNUCXX)
exec_program(${CMAKE_C_COMPILER} ARGS --version OUTPUT_VARIABLE _gcc_version_info)
string (REGEX MATCH "[345]\\.[0-9]\\.[0-9]" _gcc_version "${_gcc_version_info}")
# gcc on mac just reports: "gcc (GCC) 3.3 20030304 ..." without the
# patch level, handle this here:
if(NOT _gcc_version)
string (REGEX REPLACE ".*\\(GCC\\).* ([34]\\.[0-9]) .*" "\\1.0" _gcc_version "${_gcc_version_info}")
endif()
if(${_gcc_version} VERSION_LESS "4.2")
set(GCC_IS_LESS_THAN_4_2 TRUE)
message(WARNING "GCC version older than 4.2. Actual version: ${_gcc_version}")
endif()
endif()
macro(build_fail Include Library LibrarySource Source Message)
_do_build(${Include} ${Library} ${LibrarySource} "${Source}")
if(NOT GCC_IS_LESS_THAN_4_2 AND (USE_COMPILER_HIDDEN_VISIBILITY AND COMPILER_HAS_HIDDEN_VISIBILITY) OR WIN32 OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))
test_fail(Result ${Message})
else()
test_pass(Result ${Message})
endif()
endmacro()
macro(build_pass Include Library LibrarySource Source Message)
_do_build(${Include} ${Library} ${LibrarySource} "${Source}")
test_pass(Result ${Message})
endmacro()
include(GenerateExportHeader)
add_compiler_export_flags()
if (MSVC)
add_definitions(-DCOMPILER_IS_MSVC)
endif()
set(link_libraries)
macro(macro_add_test_library name)
add_subdirectory(${name})
include_directories(${name}
${${name}_BINARY_DIR} # For the export header.
)
list(APPEND link_libraries ${name})
add_subdirectory(${name}test)
endmacro()
macro_add_test_library(libshared)
macro_add_test_library(libstatic)
add_subdirectory(lib_shared_and_static)
add_subdirectory(lib_shared_and_statictest)
add_subdirectory(override_symbol)
if (CMAKE_COMPILER_IS_GNUCXX OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))
# We deliberately call deprecated methods, and test for that elsewhere.
# No need to clutter the test output with warnings.
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations")
endif()
if(MSVC)
add_definitions(/wd4996)
endif()
add_executable(GenerateExportHeader exportheader_test.cpp)
target_link_libraries(GenerateExportHeader ${link_libraries})
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