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

From: Eric Blake
Subject: Re: [PATCH] mbsstr: fix warnings reported by gcc -Wcast-align on ARM
Date: Mon, 04 Oct 2010 12:20:19 -0600
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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

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