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| author | Stephen Kelly <steveire@gmail.com> | 2012-05-30 18:13:09 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2012-06-12 19:38:48 (GMT) |
| commit | bd3496300262bd26073ce03e020731c592249148 (patch) | |
| tree | c5beb67ff16ac1da10ec76aebf8f62fc3a97b75f /Tests/CMakeLists.txt | |
| parent | 55d7aa4c44d78322df76679db768154568e51385 (diff) | |
| download | CMake-bd3496300262bd26073ce03e020731c592249148.zip CMake-bd3496300262bd26073ce03e020731c592249148.tar.gz CMake-bd3496300262bd26073ce03e020731c592249148.tar.bz2 | |
Refactor generation of shared library flags
CMAKE_SHARED_LIBRARY_<lang>_FLAGS has flags on various platforms for a
variety of purposes that are correlated with shared libraries but not
exclusive to them. Refactor generation of these flags to use new
purpose-specific platform variables
CMAKE_<lang>_COMPILE_OPTIONS_DLL
CMAKE_<lang>_COMPILE_OPTIONS_PIC
CMAKE_<lang>_COMPILE_OPTIONS_PIE
Activate the DLL flags specifically for shared libraries. Add a new
POSITION_INDEPENDENT_CODE target property to activate PIC/PIE flags, and
default to true for shared libraries to preserve default behavior.
Initialize the new property from CMAKE_POSITION_INDEPENDENT_CODE to
allow easy global configuration in projects.
Although the default behavior is unchanged by this refactoring, the new
approach ignores CMAKE_SHARED_LIBRARY_<lang>_FLAGS completely. We must
leave it set in case projects reference the value. Furthermore, if a
project modifies CMAKE_SHARED_LIBRARY_<lang>_FLAGS it expects the new
value to be used. Add policy CMP0018 to handle compatibility with
projects that modify this platform variable.
Add a PositionIndependentCode test on platforms where we can get
meaningful results.
Diffstat (limited to 'Tests/CMakeLists.txt')
| -rw-r--r-- | Tests/CMakeLists.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt index 5972c19..68c08a4 100644 --- a/Tests/CMakeLists.txt +++ b/Tests/CMakeLists.txt @@ -315,6 +315,24 @@ IF(BUILD_TESTING) ADD_TEST_MACRO(Module.GenerateExportHeader GenerateExportHeader) + if (APPLE OR CMAKE_CXX_COMPILER_ID MATCHES "GNU") + include(CheckCXXCompilerFlag) + check_cxx_compiler_flag(-fPIE run_pic_test) + else() + if (CMAKE_CXX_COMPILER_ID MATCHES "PGI" + OR CMAKE_CXX_COMPILER_ID MATCHES "PathScale" + OR CMAKE_SYSTEM_NAME MATCHES "IRIX64" + OR CMAKE_CXX_COMPILER_ID MATCHES "Intel") + set(run_pic_test 0) + else() + set(run_pic_test 1) + endif() + endif() + + if (run_pic_test) + ADD_TEST_MACRO(PositionIndependentTargets PositionIndependentTargets) + endif() + ADD_TEST(LinkFlags-prepare ${CMAKE_CTEST_COMMAND} -C \${CTEST_CONFIGURATION_TYPE} --build-and-test |