Bug 435640 – xf86-input-mouse-1.8.1 build fails when using gcc 4.6

• Status: RESOLVED FIXED
• Product: Gentoo/Alt

[Description Yuta SATOH 2012-09-20 13:33:27 UTC]

The following message is displayed and fails to compile.

<snip>
Making all in src
gmake[2]: Entering directory `/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1_build/src'
  CC     mouse.lo
/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1/src/mouse.c:156:9: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]
/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1/src/mouse.c: In function 'MousePreInit':
/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1/src/mouse.c:923:22: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]
  CC     pnp.lo
  CC     bsd_mouse.lo
/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1/src/bsd_mouse.c: In function 'CheckProtocol':
/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1/src/bsd_mouse.c:142:30: error: array subscript is above array bounds [-Werror=array-bounds]
cc1: some warnings being treated as errors
gmake[2]: *** [bsd_mouse.lo] Error 1
gmake[2]: Leaving directory `/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1_build/src'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/var/tmp/portage/x11-drivers/xf86-input-mouse-1.8.1/work/xf86-input-mouse-1.8.1_build'
gmake: *** [all] Error 2
 * ERROR: x11-drivers/xf86-input-mouse-1.8.1 failed (compile phase):
 *   emake failed


Reproducible: Always

Steps to Reproduce:
1. set gcc 4.6 by gcc-config 
2. . /etc/profile
3. emerge x11-drivers/xf86-input-mouse

[Comment 1 Yuta SATOH 2012-09-20 13:36:20 UTC]

Created attachment 324378 [details, diff]
patch for x11-drivers/xf86-input-mouse-1.8.1

Original patch is here.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=665390

[Comment 2 Naohiro Aota 2012-10-04 21:31:56 UTC]

Patch added to the tree. Thanks.

[Comment 3 Chí-Thanh Christopher Nguyễn 2012-10-05 21:16:15 UTC]

Will this patch have to be carried indefinitely or is that problem fixed in later gcc?

If not, and if it is suitable for upstreaming, please send this to upstream for review.

[Comment 4 Naohiro Aota 2012-10-06 10:32:42 UTC]

(In reply to comment #3)
> Will this patch have to be carried indefinitely or is that problem fixed in
> later gcc?

I've test with gcc-4.7.1 and it had no problem.