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| author | Brad King <brad.king@kitware.com> | 2015-09-30 13:42:50 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2015-09-30 15:01:23 -0400 |
| commit | 8b4873a1b025d7f47c90f3cafc93ca152b9e4652 (patch) | |
| tree | bfbccc8785c7852687be5a6fafcde4dd9707805b /Modules/CMakeCXXInformation.cmake | |
| parent | e90f463a312e18fd6498799de1522b96d84fd012 (diff) | |
| download | cmake-8b4873a1b025d7f47c90f3cafc93ca152b9e4652.tar.gz | |
Disable shared library support when compiler links statically
When a user or a compiler wrapper adds '-static' to the compiler flags
then it will always link static binaries. Detect this from the compiler
id binary and disable TARGET_SUPPORTS_SHARED_LIBS. This will prevent
projects from accidentally adding shared libraries when the toolchain
does not support them. It also helps CMake avoid linking with flags
that require shared libraries to be supported.
Diffstat (limited to 'Modules/CMakeCXXInformation.cmake')
| -rw-r--r-- | Modules/CMakeCXXInformation.cmake | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/CMakeCXXInformation.cmake b/Modules/CMakeCXXInformation.cmake index 091627bc30..dad7969df7 100644 --- a/Modules/CMakeCXXInformation.cmake +++ b/Modules/CMakeCXXInformation.cmake @@ -74,6 +74,10 @@ if(CMAKE_CXX_SIZEOF_DATA_PTR) unset(CMAKE_CXX_ABI_FILES) endif() +if(CMAKE_CXX_COMPILER_LINKS_STATICALLY) + set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE) +endif() + # This should be included before the _INIT variables are # used to initialize the cache. Since the rule variables # have if blocks on them, users can still define them here. |