Matthew Woehlke 8f95b93b41 Tests: Add failure test for GenerateExportHeader
Modify notation of statements in the GenerateExportHeader test expected
to result in link errors. Modify script used to build the test to also
generate a suite of modified sources, each having exactly one of the
failing lines enabled, and to generate EXCLUDE_FROM_ALL executables for
the same. Modify RunCMake script used to drive the test to read the list
of such executables and try to build each of them, verifying that they
do in fact fail to build.

This will verify that the _NO_EXPORT macros are working as expected, and
will also catch errors like the one that commit 0cbaaf2d
(GenerateExportHeader: Fix add_compiler_export_flags regression,
2016-09-01) fixed.

When setting up the failure tests for GenerateExportHeader, check if the
compiler actually hides non-exported stuff.  If not, the failure tests
won't fail, and will cause the overall test to fail.  Since this
typically is only the case for very old compilers, simply skipping them
as opposed to trying to do something more fine grained seems reasonably
safe.
2016-09-12 10:27:45 -04:00

128 lines
3.6 KiB
CMake

# Test add_compiler_export_flags without deprecation warning.
set(CMAKE_WARN_DEPRECATED OFF)
project(GenerateExportHeader)
include(CheckCXXCompilerFlag)
set( CMAKE_INCLUDE_CURRENT_DIR ON )
macro(TEST_FAIL value msg)
if (${value})
message (SEND_ERROR "Test fail:" "${msg}\n" ${Out} )
endif ()
endmacro()
macro(TEST_PASS value msg)
if (NOT ${value})
message (SEND_ERROR "Test fail:" "${msg}\n" ${Out} )
endif ()
endmacro()
check_cxx_compiler_flag(-Werror HAS_WERROR_FLAG)
if(HAS_WERROR_FLAG)
set(ERROR_FLAG "-Werror")
else()
# MSVC
# And intel on windows?
# http://software.intel.com/en-us/articles/how-to-handle-warnings-message-in-compiler/?wapkw=%28compiler+warning+message%29
check_cxx_compiler_flag("/WX" HAS_WX_FLAG)
if(HAS_WX_FLAG)
set(ERROR_FLAG "/WX")
else()
# Sun CC
# http://www.acsu.buffalo.edu/~charngda/sunstudio.html
check_cxx_compiler_flag("-errwarn=%all" HAS_ERRWARN_ALL)
if (HAS_ERRWARN_ALL)
set(ERROR_FLAG "-errwarn=%all")
else()
endif()
endif()
endif()
include(GenerateExportHeader)
set(CMAKE_CXX_STANDARD 98)
# Those versions of the HP compiler that need a flag to get proper C++98
# template support also need a flag to use the newer C++ library.
if (CMAKE_CXX_COMPILER_ID STREQUAL HP AND
CMAKE_CXX98_STANDARD_COMPILE_OPTION STREQUAL "+hpxstd98")
string(APPEND CMAKE_CXX_FLAGS " -AA")
endif ()
# Clang/C2 in C++98 mode cannot properly handle some of MSVC headers
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND
CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
set(CMAKE_CXX_STANDARD 11)
endif()
add_subdirectory(lib_shared_and_static)
add_compiler_export_flags()
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_CURRENT_BINARY_DIR})
message(STATUS "COMPILER_HAS_DEPRECATED: " ${COMPILER_HAS_DEPRECATED})
message(STATUS "COMPILER_HAS_HIDDEN_VISIBILITY: " ${COMPILER_HAS_HIDDEN_VISIBILITY})
message(STATUS "WIN32: " ${WIN32})
message(STATUS "HAS_WERROR_FLAG: " ${HAS_WERROR_FLAG})
set(link_libraries)
macro(macro_add_test_library name)
add_subdirectory(${name})
include_directories(${name}
${CMAKE_CURRENT_BINARY_DIR}/${name} # For the export header.
)
list(APPEND link_libraries ${name})
endmacro()
macro_add_test_library(libshared)
macro_add_test_library(libstatic)
add_subdirectory(nodeprecated)
if(NOT BORLAND)
add_subdirectory(c_identifier)
endif()
if (CMAKE_COMPILER_IS_GNUCXX OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))
# No need to clutter the test output with warnings.
string(APPEND CMAKE_CXX_FLAGS " -Wno-deprecated-declarations")
endif()
if(MSVC AND COMPILER_HAS_DEPRECATED)
add_definitions(/wd4996)
endif()
add_executable(GenerateExportHeader exportheader_test.cpp)
target_link_libraries(GenerateExportHeader ${link_libraries})
if (WIN32 OR CYGWIN)
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND
CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
set(_platform Win32-Clang)
elseif(MSVC AND COMPILER_HAS_DEPRECATED)
set(_platform Win32)
elseif((MINGW OR CYGWIN) AND COMPILER_HAS_DEPRECATED)
set(_platform MinGW)
else()
set(_platform WinEmpty)
endif()
elseif(COMPILER_HAS_HIDDEN_VISIBILITY AND USE_COMPILER_HIDDEN_VISIBILITY)
set(_platform UNIX)
elseif(COMPILER_HAS_DEPRECATED)
set(_platform UNIX_DeprecatedOnly)
else()
set(_platform Empty)
endif()
message(STATUS "Testing reference: ${_platform}")
target_compile_definitions(GenerateExportHeader
PRIVATE
"SRC_DIR=\"${CMAKE_CURRENT_SOURCE_DIR}/reference/${_platform}\""
"BIN_DIR=\"${CMAKE_CURRENT_BINARY_DIR}\""
)
include(${CMAKE_CURRENT_LIST_DIR}/GEH-failures.cmake)