On Mon, 2010-01-11 at 11:18 -0800, Luca Barbieri wrote: > > gcc -c -I../../include -I../../src/mesa -I../../src/gallium/include > > -I../../src/gallium/auxiliary -Wall -Wmissing-prototypes > > -Wdeclaration-after-statement -Wpointer-arith -g -fPIC -D_POSIX_SOURCE > > -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE > > -DPTHREADS -DUSE_XSHM -DHAVE_POSIX_MEMALIGN -DDEBUG -DDEBUG_MATH > > -I/usr/X11R6/include -std=c99 -ffast-math -fno-strict-aliasing -ansi > > -pedantic state_tracker/st_cb_texture.c -o state_tracker/st_cb_texture.o > > state_tracker/st_cb_texture.c: In function 'st_TexImage': > > state_tracker/st_cb_texture.c:689: warning: initialization discards > > qualifiers from pointer target type > > state_tracker/st_cb_texture.c:690: error: 'for' loop initial declarations > > are only allowed in C99 mode > > On my setup (./configure && make) Mesa is getting built in C99 mode, > which compiles that code. > The command line you quoted actually contains "-std=c99", but also > contains "-ansi" later, which is causing the problem. > > It seems that the "linux-debug" target includes "-ansi" (thus > disabling C99) but the default autoconf one doesn't, resulting in C99 > mode! > > Some parts of the codebase (such as all radeon drivers) contain for > loop declarations and thus require C99 mode. > I think "-ansi" should be removed from all files in configs/*.
Unfortunately C99 isn't widespread enough to allow us to do that, especially in the platform-independent parts of Mesa and Gallium. For specific drivers like r300 or where a platform dependency already exists (eg the DRI code), there isn't the same pressure and the rules there can be more relaxed. But for Mesa core and shared Gallium code, we target portability and that means pretty strict C90... Keith ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
