Am Montag, 15. Oktober 2012 um 15:51:39, schrieb David Cole <david.c...@kitware.com> > 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. > > > :-) >
Thanks, did something similar. Since the define-value is created dynamically I used configure_file(...) to create the include. Kornel > 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 > > > >
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