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| author | Naios <naios-dev@live.de> | 2016-03-20 00:50:21 +0100 |
|---|---|---|
| committer | Naios <naios-dev@live.de> | 2016-03-24 02:38:54 +0100 |
| commit | 2613413608337d61994503df0e2d9ed05d3c4ee4 (patch) | |
| tree | c560bb1832b8a9aa13837dd662bfb9fa514475f4 /cmake/compiler/clang | |
| parent | f37682b7edd0d711e1120cbdd9d627fb5b9dbde1 (diff) | |
Core/Build: Add the possibility to link libraries dynamically.
* makes it possible to access exported singletons from other shared lib's.
* reduces binary size
(cherry picked from commit f4e0945b13a70225684e7421d9542efae6a47c89)
Diffstat (limited to 'cmake/compiler/clang')
| -rw-r--r-- | cmake/compiler/clang/settings.cmake | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cmake/compiler/clang/settings.cmake b/cmake/compiler/clang/settings.cmake index 261a55b285f..9a8cb85275e 100644 --- a/cmake/compiler/clang/settings.cmake +++ b/cmake/compiler/clang/settings.cmake @@ -18,3 +18,16 @@ endif() # -Wno-deprecated-register is needed to suppress 185 gsoap warnings on Unix systems. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wno-narrowing -Wno-deprecated-register") set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG=1") + +if (WITH_DYNAMIC_LINKING) + # -fPIC is needed to allow static linking in shared libs. + # -fvisibility=hidden sets the default visibility to hidden to prevent exporting of all symbols. + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -fvisibility=hidden") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -fvisibility=hidden") + + # --no-undefined to throw errors when there are undefined symbols + # (caused through missing TRINITY_*_API macros). + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --no-undefined") + + message(STATUS "Clang: Disallow undefined symbols") +endif() |