pkg/53412: abiword-plugins build fails on NetBSD-current/i386

[jdbaker%mylinuxisp.com@localhost]

>Number:         53412
>Category:       pkg
>Synopsis:       abiword-plugins build fails on NetBSD-current/i386
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jun 29 16:10:00 +0000 2018
>Originator:     John D. Baker
>Release:        NetBSD-8.99.21/i386, pkgsrc-HEAD (pre-pkgsrc-2018Q2
>Organization:
>Environment:
NetBSD slate 8.99.21 NetBSD 8.99.21 (SLATE) #23: Wed Jun 27 09:51:43 CDT 2018  sysop%plex760.technoskunk.fur@localhost:/r0/build/current/obj/i386/sys/arch/i386/compile/SLATE i386

>Description:
Building "editors/abiword-plugins" on NetBSD-current/i386 (8.99.21 at
this time) fails as follows:

[...]
  CXX      RealmProtocol.lo
RealmProtocol.cpp:19:1: error: narrowing conversion of '-2' from 'int' to '__uint32_t {aka unsigned int}' inside { } [-Wnarrowing]
 };
 ^
RealmProtocol.cpp:19:1: error: narrowing conversion of '-1' from 'int' to '__uint32_t {aka unsigned int}' inside { } [-Wnarrowing]
RealmProtocol.cpp:19:1: error: narrowing conversion of '-1' from 'int' to '__uint32_t {aka unsigned int}' inside { } [-Wnarrowing]
RealmProtocol.cpp:19:1: error: narrowing conversion of '-1' from 'int' to '__uint32_t {aka unsigned int}' inside { } [-Wnarrowing]
Makefile:628: recipe for target 'RealmProtocol.lo' failed
gmake[4]: *** [RealmProtocol.lo] Error 1
[...]

Likely a GGC6-ism.  "abiword-plugins" builds just fine with GCC 5.5 in
NetBSD-8.0_RC2/i386.

Seem to recall a problem with "abiword-plugins" on amd64-current, but
don't remember now.  Will get to that soon-ish.
>How-To-Repeat:
Attempt to build "editors/abiword-plugins" with GCC 6.4.0 in NetBSD/i386
8.99.21.
>Fix: