Consider an alternate approach: Write a header file named "xx.define.h" and include it ONLY in x.cpp.
#define XX "seomthing" Then you don't even have to re-run CMake to change the definition of XX. Just edit the header file and re-compile. Especially when you realize you've misspelled something. :-) On Mon, Oct 15, 2012 at 3:47 PM, Kornel Benko <kor...@lyx.org> wrote: > Am Montag, 15. Oktober 2012 um 15:40:18, schrieb Brad King > <brad.k...@kitware.com> > >> On 10/15/2012 03:26 PM, Kornel Benko wrote: > >> > Unfortunately, if "something" changes, the effect is, that _all_ sources >> > in the relevant > >> > directory are recompiled. (I expected the recompilation of x.cpp only). > >> > > >> > This may depend on the build system. In my case "Unix makefiles". The >> > reason is > >> > > >> > that each object file created for this directory depends on >> > "flags.make", which changes accordingly. > >> > > >> > If one has hundreds of files in the source dir, this is less welcome. > >> > >> This is a known limitation of the Makefile generator. We cannot use > >> a per-object flags.make file because some filesystems are EXTREMELY > >> slow at using lots of tiny files. There may be an issue tracker > >> entry asking for this to be solved, but I don't think it ever will > >> be. > >> > >> -Brad > > > > Thanks Brad. I nearly expected/feared something like this. Pity. > > > > Kornel > > > -- > > 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 -- 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
