pkg/48717: wm/awesome build fails on NetBSD/i386 6.1.3

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

>Number:         48717
>Category:       pkg
>Synopsis:       wm/awesome build fails on NetBSD/i386 6.1.3
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Apr 06 02:15:01 +0000 2014
>Originator:     Izumi Tsutsui
>Release:        NetBSD 6.1.3 + pkgsrc-2014Q1
>Organization:
>Environment:
System: NetBSD 6.1.3
Architecture: i386
Machine: i386
>Description:
awesome build on NetBSD/i386 6.1.3 fails:
---
[ 77%] Generating manpages/fr/man1/awesome-client.1
/s/pkgobj.i386/wm/awesome/work.i386/awesome-3.5.1/common/backtrace.c:26:22: 
fatal error: execinfo.h: No such file or directory
compilation terminated.
CMakeFiles/awesome.dir/build.make:563: recipe for target 
'CMakeFiles/awesome.dir/common/backtrace.c.o' failed
---

>How-To-Repeat:
# cd wm/awesome && make package

>Fix:
Add
.include "../../devel/libexecinfo/buildlink3.mk"
in Makefile? (not sure why it didn't fail in 2013Q4)