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| author | Stephen Kelly <steveire@gmail.com> | 2012-05-05 21:11:35 +0200 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2012-06-12 15:37:53 -0400 |
| commit | 31d7a0f2e3a717435da9660bcb2c23654171afda (patch) | |
| tree | e181c6d1cf90af21d9a06b31d511f2d20aff8600 /Modules/CMakeCXXInformation.cmake | |
| parent | 1ccbfdebb99b167e1da1d9aa8a072adaea6325c6 (diff) | |
| download | cmake-31d7a0f2e3a717435da9660bcb2c23654171afda.tar.gz | |
Add platform variables for position independent code flags
Store in new platform variables
CMAKE_${lang}_COMPILE_OPTIONS_PIC
CMAKE_${lang}_COMPILE_OPTIONS_PIE
flags for position independent code generation.
In almost all cases, this means duplication of the
CMAKE_SHARED_LIBRARY_${lang}_FLAGS for the _PIC case and using the
assumed pie equivalent for the _PIE case. Note that the GNU compiler
has supported -fPIE since 3.4 and that there is no -fPIC on GNU for
Windows or Cygwin.
There is a possibility that the _PIE variables are not correct.
However, as there is no backwards compatibility to be concerned about
(as the POSITION_INDEPENDENT_CODE property is not used anywhere yet),
the current state suffices.
Diffstat (limited to 'Modules/CMakeCXXInformation.cmake')
| -rw-r--r-- | Modules/CMakeCXXInformation.cmake | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Modules/CMakeCXXInformation.cmake b/Modules/CMakeCXXInformation.cmake index 608b83307c..5e09eab1e8 100644 --- a/Modules/CMakeCXXInformation.cmake +++ b/Modules/CMakeCXXInformation.cmake @@ -100,6 +100,14 @@ IF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS) SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS}) ENDIF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS) +IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC) + SET(CMAKE_CXX_COMPILE_OPTIONS_PIC ${CMAKE_C_COMPILE_OPTIONS_PIC}) +ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC) + +IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE) + SET(CMAKE_CXX_COMPILE_OPTIONS_PIE ${CMAKE_C_COMPILE_OPTIONS_PIE}) +ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE) + IF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS) SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS}) ENDIF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS) |