On Sun, Mar 27, 2011 at 02:54:56PM -0300, Sergio Belkin wrote:
2011/3/27 Ralf Corsepius <rc040203(a)freenet.de>:
> On 03/27/2011 11:22 AM, giallu(a)gmail.com wrote:
>> I'm trying to rebuild a package with an autotools based toolchain and
>> it's failing because they use -Werror and gcc 4.6 spits out few new
>> warnings on the code.
>
> Packages adding -Werror by themselves are poorly designed.
>
Just to learn: Ralf, Why do you say that? :-)
Because it's an invitation for the package build to fail, often for
fairly spurious reasons. eg. There was a bug that I found in gcc 4.6
(now fixed) which caused any program that used glibc + -O3 + strcmp to
give a warning, which would cause it to fail to compile with -Werror.
However developers themselves should definitely be using compiler
warnings and fixing them.
In libguestfs we have some pretty complex autotools magic to deal with
all this:
http://git.annexia.org/?p=libguestfs.git;a=blob;f=configure.ac;h=f1b56d2d...
Rich.
--
Richard Jones, Virtualization Group, Red Hat
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