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Re: v2: The GNU C Library 2.16 release plan

On Thursday 31 May 2012 14:48:52 Joseph S. Myers wrote:
> Oh, and one other point about release testing:
> GCC routinely gets tested before release by full GNU/Linux distribution
> rebuilds - is anyone able to test distribution rebuilds with new glibc
> after we freeze for 4.6?  This may be less likely to show up problems than
> rebuilds with new GCC are, but it could still be useful.

in testing glibc-2.16 and building up a new chroot, i've noticed two issues:

 - a lot of gnulib packages fail with gets() errors ... the gnulib project has 
fixed this, but it'll take a while for that to trickle down into all the 
respective projects.  i've just added patches like this to fix it:

 - the fortify warning change wrt optimization is too noisy.  i glanced 
through gcc to see if the fortify-by-default could be made to work in a 
different way, but couldn't see a clean way of doing it.  instead, i'll just 
carry this in Gentoo:

--- a/include/features.h
+++ b/include/features.h
@@ -325,10 +325,11 @@
 # define __USE_REENTRANT	1
+#if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0
-# if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0
-#  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
-# elif !__GNUC_PREREQ (4, 1)
+# if !__GNUC_PREREQ (4, 1)
 #  warning _FORTIFY_SOURCE requires GCC 4.1 or later
 # elif _FORTIFY_SOURCE > 1
 #  define __USE_FORTIFY_LEVEL 2

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