firefox (pkgsrc-2015Q4) build fails on i386-7.99.26

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

Trying to build firefox from pkgsrc-2015Q4 on i386-7.99.26 fails with:

[...]
ld: ../../xpcom/components/nsComponentManager.o: relocation R_386_GOTOFF against protected data `start_kPStaticModules_NSModule' can not be used when making a shared object
ld: final link failed: Bad value
/d0/build/pkgsrc/www/firefox/work/firefox-43.0/config/rules.mk:827: recipe for target 'libxul.so' failed
gmake[3]: *** [libxul.so] Error 1
gmake[3]: Leaving directory '/d0/build/pkgsrc/www/firefox/work/build/toolkit/library'
/d0/build/pkgsrc/www/firefox/work/firefox-43.0/config/recurse.mk:71: recipe for target 'toolkit/library/target' failed
gmake[2]: *** [toolkit/library/target] Error 2
gmake[2]: Leaving directory '/d0/build/pkgsrc/www/firefox/work/build'
/d0/build/pkgsrc/www/firefox/work/firefox-43.0/config/recurse.mk:32: recipe for target 'compile' failed
gmake[1]: *** [compile] Error 2
gmake[1]: Leaving directory '/d0/build/pkgsrc/www/firefox/work/build'
/d0/build/pkgsrc/www/firefox/work/firefox-43.0/config/rules.mk:549: recipe for target 'all' failed
gmake: *** [all] Error 2
*** Error code 2

Stop.
make[1]: stopped in /x/pkgsrc/www/firefox
*** Error code 1

Stop.
make: stopped in /x/pkgsrc/www/firefox


System:

NetBSD verthandi 7.99.26 NetBSD 7.99.26 (VERTHANDI) #1: Fri Feb 12 22:16:21 CST 2016  sysop%verthandi.technoskunk.fur@localhost:/d0/build/nbsd-tst/obj/i386/sys/arch/i386/compile/VERTHANDI i386

In this case the above system is using modular/pkgsrc Xorg, if it has
any bearing on the situation.

The same system built firefox from pkgsrc-2015Q4 on 7.0_STABLE (both native
and modular/pkgsrc Xorg) and 6.1_STABLE (native Xorg) without problems.

Perhaps toolchain changes/updates since I last built -current address
the problem?  I've recently updated my sources and a new build will be
finished soon.  I'll update and try again.

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