Commit Graph

13 Commits

Author SHA1 Message Date
Stephen Kelly 31d7a0f2e3 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.
2012-06-12 15:37:53 -04:00
Brad King 4d72006bd6 Reduce duplication in Platform/<os>.cmake files
Several platform-wide linker flag variables are defined in
Modules/Platform/<os>.cmake files for C and then copied by the
Modules/CMake<lang>Information.cmake file for each language.
We now use this approach for the variables

  CMAKE_EXE_EXPORTS_${lang}_FLAG
  CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG
  CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS

to avoid duplication for multiple languages in each platform file.
2009-12-02 15:17:53 -05:00
Brad King fd37a6ec3d ENH: Better linker search path computation.
- Use linker search path -L.. -lfoo for lib w/out soname
    when platform sets CMAKE_PLATFORM_USES_PATH_WHEN_NO_SONAME
  - Rename cmOrderRuntimeDirectories to cmOrderDirectories
    and generalize it for both soname constraints and link
    library constraints
  - Use cmOrderDirectories to order -L directories based
    on all needed constraints
  - Avoid processing implicit link directories
  - For CMAKE_OLD_LINK_PATHS add constraints from libs
    producing them to produce old ordering
2008-02-21 11:41:11 -05:00
Brad King f49ec94e9f ENH: Enable dependent library search paths on more platforms
- HP-UX needs dependent library paths as -L options.
  - IRIX needs dependent library paths as -L options.
  - Sun needs dependent library paths as -L options.
  - FreeBSD needs dependent library paths in -rpath-link option.
2008-02-01 09:57:41 -05:00
Brad King 66d1930f56 ENH: Added CMAKE_EXE_EXPORTS_C_FLAG and CMAKE_EXE_EXPORTS_CXX_FLAG to support executables that export symbols. 2007-04-17 23:41:51 -04:00
Brad King 3079a67133 ENH: Enabling link type selection flags for this platform. See bug#1644 for details. 2006-09-15 14:58:30 -04:00
Bill Hoffman a64f629140 ENH: add unix paths 2006-03-27 11:09:19 -05:00
Bill Hoffman d33021924d ENH: add more search paths and add UnixPaths to all unix platforms 2006-03-27 10:46:42 -05:00
Brad King 8e137c54d6 ENH: Enabling soname support on FreeBSD. 2006-03-16 11:15:24 -05:00
Bill Hoffman 692ba48c4e ENH: major changes to support addition of languages from cmake modules directory. 2004-09-22 14:42:05 -04:00
Bill Hoffman 66a08c10e5 ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code 2004-08-26 14:55:55 -04:00
Bill Hoffman c3530dd01f BUG: fix for bug 383 gcc flags are now always set if the compiler is gnu 2003-11-14 10:44:12 -05:00
Bill Hoffman f5d95fb078 Complete rework of makefile generators expect trouble 2002-11-08 15:46:08 -05:00