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On Saturday 29 December 2012 15:44:49 Andreas Schwab wrote: > Mike Frysinger writes: > > On Saturday 29 December 2012 01:26:56 Andrew Pinski wrote: > >> On Fri, Dec 28, 2012 at 10:01 PM, Mike Frysinger wrote: > >> > there are also attributes unconditionally used such as: > >> > stdlib.h: malloc (new to gcc-3.0) > >> > mathcalls.h: nonnull (new to gcc-3.3) > >> > stdlib.h: alloc_size (new to gcc-4.3) > >> > >> unknown attributes are normally ignored even with -W -Wall (though not > >> with -Wattributes) so those should be ok. > > > > yes, but it makes -Werror and such angry, > > Only with -Wsystem-headers. if your gcc supports that, yes :). that flag is new to gcc-3.0. it's probably not as much of an issue for glibc headers, but that flag doesn't work in cases with -I paths that are subdirs of /usr/include. for example, with glib-2.0, you get: $ pkg-config glib-2.0 --cflags -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include so when you do "#include <glib/garray.h>", that isn't considered a system header because it was found via the -I :(. -mike
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