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author | Kitware Robot <kwrobot@kitware.com> | 2013-10-15 15:17:36 (GMT) |
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committer | Brad King <brad.king@kitware.com> | 2013-10-15 18:12:03 (GMT) |
commit | f051814ed0e63badbfd68049354f36259dbf4b49 (patch) | |
tree | f4e6f885f86c882d723a7dd53d2b702d0c7fdffb /Help/policy/CMP0018.rst | |
parent | e94958e99c4dec26c86ce8b76d744c04ba960675 (diff) | |
download | CMake-f051814ed0e63badbfd68049354f36259dbf4b49.zip CMake-f051814ed0e63badbfd68049354f36259dbf4b49.tar.gz CMake-f051814ed0e63badbfd68049354f36259dbf4b49.tar.bz2 |
Convert builtin help to reStructuredText source files
Run the convert-help.bash script to convert documentation:
./convert-help.bash "/path/to/CMake-build/bin"
Then remove it.
Diffstat (limited to 'Help/policy/CMP0018.rst')
-rw-r--r-- | Help/policy/CMP0018.rst | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Help/policy/CMP0018.rst b/Help/policy/CMP0018.rst new file mode 100644 index 0000000..0f68267 --- /dev/null +++ b/Help/policy/CMP0018.rst @@ -0,0 +1,32 @@ +CMP0018 +------- + +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 +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 +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 +undocumented platform variables to select flags while ignoring +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 +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 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. + +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. |