On Monday 19 March 2012, Brad King wrote: > Hi Folks, > > I've just pushed a new 'object-library' topic and merged to 'next' > for testing. David Cole and I have been working on it for a couple > of weeks. The following documentation added to the add_library > command explains: > > -------------------------------------------------------------------------- > The signature > > add_library(<name> OBJECT <src>...) > > creates a special "object library" target. An object library compiles > source files but does not archive or link their object files into a > library. Instead other targets created by add_library or > add_executable may reference the objects using an expression of the > form $<TARGET_OBJECTS:objlib> as a source, where "objlib" is the > object library name. For example: > > add_library(... $<TARGET_OBJECTS:objlib> ...) > add_executable(... $<TARGET_OBJECTS:objlib> ...) > > will include objlib's object files in a library and an executable > along with those compiled from their own sources. Object libraries > may contain only sources (and headers) that compile to object files. > They may contain custom commands generating such sources, but not > PRE_BUILD, PRE_LINK, or POST_BUILD commands. Object libraries cannot > be imported, exported, installed, or linked. > -------------------------------------------------------------------------- > > Many of the documented restrictions are temporary until meaningful > behavior can be defined and implemented for them in a future version. > It is easiest to simply disallow all but the basic use case for now. > > This feature plays a role similar to autotools convenience libraries > but works with all toolchains and under VS and Xcode. We've updated > all primary generators to support object libraries including the Ninja > generator. Until this goes into master watch out for conflicts when > making changes to the other generators.
Cool :-) This must be one of the most requested missing features :-) > We are still missing support in the "Extra" generators to present > OBJECT libraries in the project files. They need to appear much like > STATIC libraries but have no library/archive file. We request help > from the contributors of Extra generators to handle them. Can you please create a ticket for each of them, and assign them to me ? I'll see that I can do the Eclipse one still for 2.8.8. CodeBlocks/QtCreator will have to wait until 2.8.9 I think. Alex -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
