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Re: [Qemu-devel] [PATCH] configure: Make epoll_create1 test work around

From: Blue Swirl
Subject: Re: [Qemu-devel] [PATCH] configure: Make epoll_create1 test work around SPARC glibc bug
Date: Tue, 19 Apr 2011 22:37:11 +0300

On Tue, Apr 19, 2011 at 11:57 AM, Peter Maydell
<address@hidden> wrote:
> Work around a SPARC glibc bug which caused the epoll_create1 configure
> test to wrongly claim that the function was present. Some versions of
> SPARC glibc provided the function in the library but didn't declare
> it in the include file; the result is that gcc warns about an implicit
> declaration but a link succeeds. So we build the configure test with
> -Werror to avoid the test passing but then a -Werror qemu build
> failing.

But then epoll would not be used. How about checking for the buggy
glibc and doing something similar to how Solaris madvise() problem is
handled in osdep.c? Both this and madvise() hack could be configure
time checks, though.

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