Re: [PATCH] mbsstr: fix warnings reported by gcc -Wcast-align on ARM

[Eric Blake]

On 10/04/2010 12:15 PM, Dmitry V. Levin wrote:
> > In summary, please turn off -Werror when compiling gnulib code. We don't
> > guarantee the absence of warnings.
>
> The project where -Werror is enabled by default is GNU grep.  If the
> statement that gnulib code may emit -Wcast-align warnings is correct, then
> I suggest to remove either -Wcast-align or $(WERROR_CFLAGS) when compiling
> gnulib in grep.

Jim maintains both grep and coreutils.  In coreutils, his solution is to 
manually disable compiler flags known to be incompatible with gnulib 
while still using -Werror for the flags that are okay; such that the 
gnulib portion of coreutils is compiled with fewer warnings than the 
coreutils portion.  It shouldn't be too hard to use that same paradigm 
in grep.

--
Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org