diff options
Diffstat (limited to 'Help/policy/CMP0018.rst')
| -rw-r--r-- | Help/policy/CMP0018.rst | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/Help/policy/CMP0018.rst b/Help/policy/CMP0018.rst index a3a7a12..6248406 100644 --- a/Help/policy/CMP0018.rst +++ b/Help/policy/CMP0018.rst @@ -1,34 +1,35 @@ CMP0018 ------- -Ignore CMAKE_SHARED_LIBRARY_<Lang>_FLAGS variable. +Ignore ``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` variable. -CMake 2.8.8 and lower compiled sources in SHARED and MODULE libraries -using the value of the undocumented CMAKE_SHARED_LIBRARY_<Lang>_FLAGS +CMake 2.8.8 and lower compiled sources in ``SHARED`` and ``MODULE`` libraries +using the value of the undocumented ``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` platform variable. The variable contained platform-specific flags needed to compile objects for shared libraries. Typically it included -a flag such as -fPIC for position independent code but also included +a flag such as ``-fPIC`` for position independent code but also included other flags needed on certain platforms. CMake 2.8.9 and higher -prefer instead to use the POSITION_INDEPENDENT_CODE target property to -determine what targets should be position independent, and new +prefer instead to use the :prop_tgt:`POSITION_INDEPENDENT_CODE` target +property to determine what targets should be position independent, and new undocumented platform variables to select flags while ignoring -CMAKE_SHARED_LIBRARY_<Lang>_FLAGS completely. +``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` completely. The default for either approach produces identical compilation flags, -but if a project modifies CMAKE_SHARED_LIBRARY_<Lang>_FLAGS from its +but if a project modifies ``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` from its original value this policy determines which approach to use. -The OLD behavior for this policy is to ignore the -POSITION_INDEPENDENT_CODE property for all targets and use the -modified value of CMAKE_SHARED_LIBRARY_<Lang>_FLAGS for SHARED and -MODULE libraries. +The ``OLD`` behavior for this policy is to ignore the +:prop_tgt:`POSITION_INDEPENDENT_CODE` property for all targets and use the +modified value of ``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` for ``SHARED`` and +``MODULE`` libraries. -The NEW behavior for this policy is to ignore -CMAKE_SHARED_LIBRARY_<Lang>_FLAGS whether it is modified or not and -honor the POSITION_INDEPENDENT_CODE target property. +The ``NEW`` behavior for this policy is to ignore +``CMAKE_SHARED_LIBRARY_<Lang>_FLAGS`` whether it is modified or not and +honor the :prop_tgt:`POSITION_INDEPENDENT_CODE` target property. This policy was introduced in CMake version 2.8.9. CMake version -|release| warns when the policy is not set and uses OLD behavior. Use -the cmake_policy command to set it to OLD or NEW explicitly. +|release| warns when the policy is not set and uses ``OLD`` behavior. Use +the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` +explicitly. .. include:: DEPRECATED.txt |