On Tue, Nov 11, 2014 at 10:48:36PM +1100, Bruce Evans wrote: > On Tue, 11 Nov 2014, [utf-8] Dag-Erling Sm??rgrav wrote: > > > "Bjoern A. Zeeb" <b...@freebsd.org> writes: > >> This fails to compile on all gcc platforms. > >> > >> cc1: warnings being treated as errors > >> /scratch/tmp/bz/head.svn/sys/modules/geom/geom_bde/../../../crypto/rijndael/rijndael-api-fst.c: > >> In function 'rijndael_padEncrypt': > >> /scratch/tmp/bz/head.svn/sys/modules/geom/geom_bde/../../../crypto/rijndael/rijndael-api-fst.c:236: > >> warning: cast discards qualifiers from pointer target type > >> [...] > > > > The code is quite clearly wrong. Why doesn't clang complain? > > -Wcast-qual is broken (has no effect) with clang. This is incompatible > with gcc and defeats the reason of existence of -Wcast-qual.
I implemented -Wcast-qual in clang. We might want to backport it to our 3.4 (3.5 when it's imported), to prevent breakages like this in future. http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20141117/118946.html Roman
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