I keep running into this error:

creating libpixbufloader-pcx.la
(cd .libs && rm -f libpixbufloader-pcx.la && ln -s ../libpixbufloader-pcx.la libpixbufloader-pcx.la)
if cc -DHAVE_CONFIG_H -I. -I. -I.. -DG_LOG_DOMAIN=\"GdkPixbuf\" -I.. -I.. -I../gdk-pixbuf -I../gdk-pixbuf -DG\
   -c -o gdk-pixbuf-csource.o `test -f 'gdk-pixbuf-csource.c' || echo './'`gdk-pixbuf-csource.c; \
then mv -f ".deps/gdk-pixbuf-csource.Tpo" ".deps/gdk-pixbuf-csource.Po"; \
else rm -f ".deps/gdk-pixbuf-csource.Tpo"; exit 1; \
fi
/bin/sh ../libtool --mode=link cc  -O2 -pthread -I/usr/pkg/include -I/usr/include -DGLX_GLXEXT_LEGACY -I/usr/
cc -O2 -pthread -I/var/obj/pkg/x11/gtk2/work.i386/.buildlink/include -DGLX_GLXEXT_LEGACY -I/var/obj/pkg/x11/gb
creating gdk-pixbuf-csource
if cc -DHAVE_CONFIG_H -I. -I. -I.. -DG_LOG_DOMAIN=\"GdkPixbuf\" -I.. -I.. -I../gdk-pixbuf -I../gdk-pixbuf -DG\
   -c -o queryloaders.o `test -f 'queryloaders.c' || echo './'`queryloaders.c; \
then mv -f ".deps/queryloaders.Tpo" ".deps/queryloaders.Po"; \
else rm -f ".deps/queryloaders.Tpo"; exit 1; \
fi
queryloaders.c: In function `query_module':
queryloaders.c:164: warning: dereferencing type-punned pointer will break strict-aliasing rules
queryloaders.c:165: warning: dereferencing type-punned pointer will break strict-aliasing rules
/bin/sh ../libtool --mode=link cc  -O2 -pthread -I/usr/pkg/include -I/usr/include -DGLX_GLXEXT_LEGACY -I/usr/
cc -O2 -pthread -I/var/obj/pkg/x11/gtk2/work.i386/.buildlink/include -DGLX_GLXEXT_LEGACY -I/var/obj/pkg/x11/gb
gcc: __PTHREAD_FLAGS__: No such file or directory
gmake[4]: *** [gdk-pixbuf-query-loaders] Error 1
gmake[4]: Leaving directory `/var/obj/pkg/x11/gtk2/work.i386/gtk+-2.8.6/gdk-pixbuf'
gmake[3]: *** [all-recursive] Error 1


-- 
Hisashi T Fujinaka - htodd@twofifty.com
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