firefox 63.01 build failure under -current

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

On a NetBSD-current from earlier today and updated (-current) pkgsrc I 
am getting:

----

/usr/pkgsrc/www/firefox/work/.cwrapper/bin/c++ -o IPCMessageTypeName.o 
-c -I/usr/pkgsrc/www/firefox/work/build/dist/stl_wrappers 
-I/usr/pkgsrc/www/firefox/work/build/dist/system_wrappers -include 
/usr/pkgsrc/www/firefox/work/firefox-63.0.1/config/gcc_hidden.h 
-DNDEBUG=1 -DTRIMMED=1 -DOS_POSIX=1 -DOS_NETBSD=1 -DOS_BSD=1 
-DSTATIC_EXPORTABLE_JS_API -DMOZ_HAS_MOZGLUE -DMOZILLA_INTERNAL_API 
-DIMPL_LIBXUL -I/usr/pkgsrc/www/firefox/work/firefox-63.0.1/ipc/ipdl 
-I/usr/pkgsrc/www/firefox/work/build/ipc/ipdl 
-I/usr/pkgsrc/www/firefox/work/build/ipc/ipdl/_ipdlheaders 
-I/usr/pkgsrc/www/firefox/work/firefox-63.0.1/ipc/chromium/src 
-I/usr/pkgsrc/www/firefox/work/firefox-63.0.1/ipc/glue 
-I/usr/pkgsrc/www/firefox/work/build/dist/include 
-I/usr/pkg/include/nspr -I/usr/pkg/include/nss -I/usr/pkg/include/nspr 
-I/usr/X11R7/include/pixman-1 -fPIC -DPIC -DMOZILLA_CLIENT -include 
/usr/pkgsrc/www/firefox/work/build/mozilla-config.h -I/usr/pkg/include 
-I/usr/include -I/usr/pkg/include/nspr -I/usr/pkg/include/nss/nss 
-I/usr/X11R7/include -I/usr/X11R7/include/libdrm 
-I/usr/pkg/include/glib/glib-2.0 -I/usr/pkg/include/glib/gio-unix-2.0 
-I/usr/pkg/lib/glib-2.0/include -I/usr/pkg/include/ffmpeg4 
-I/usr/X11R7/include/freetype2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 
-Wall -Wempty-body -Wignored-qualifiers -Woverloaded-virtual 
-Wpointer-arith -Wsign-compare -Wtype-limits -Wunreachable-code 
-Wwrite-strings -Wno-invalid-offsetof -Wduplicated-cond 
-Wno-error=maybe-uninitialized -Wno-error=deprecated-declarations 
-Wno-error=array-bounds -Wno-error=free-nonheap-object -Wformat 
-fno-sized-deallocation -O2 -I/usr/pkg/include/nspr 
-D_GLIBCXX_INCLUDE_NEXT_C_HEADERS -I/usr/pkg/include -I/usr/include 
-I/usr/pkg/include/nss/nss -I/usr/X11R7/include 
-I/usr/X11R7/include/libdrm -I/usr/pkg/include/glib/glib-2.0 
-I/usr/pkg/include/glib/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include 
-I/usr/pkg/include/ffmpeg4 -I/usr/X11R7/include/freetype2 
-D__HAVE_INLINE___ISINF -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 
-fno-exceptions -fno-strict-aliasing -Dunix -fno-rtti 
-ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno 
-pthread -pipe -I/usr/pkg/include -O2 -fomit-frame-pointer 
-I/usr/pkgsrc/www/firefox/work/firefox-63.0.1/widget/gtk/compat-gtk3 
-I/usr/pkg/include/gtk-3.0 -I/usr/pkg/include/pango-1.0 
-I/usr/pkg/include/glib/glib-2.0 -I/usr/pkg/lib/glib-2.0/include 
-I/usr/pkg/include -I/usr/pkg/include/fribidi -I/usr/pkg/include/cairo 
-I/usr/X11R7/include/pixman-1 -I/usr/X11R7/include 
-I/usr/X11R7/include/freetype2 -I/usr/pkg/include/libpng16 
-I/usr/pkg/include/harfbuzz -I/usr/pkg/include/gdk-pixbuf-2.0 
-D_REENTRANT -I/usr/pkg/include/glib/gio-unix-2.0/ -D_REENTRANT 
-I/usr/pkg/include/atk-1.0 -I/usr/pkg/include/at-spi2-atk/2.0 
-I/usr/pkg/include/at-spi-2.0 -I/usr/pkg/include/dbus-1.0 
-I/usr/pkg/lib/dbus-1.0/include -I/usr/pkg/include/gtk-3.0/unix-print 
-D_REENTRANT -D_REENTRANT -D_REENTRANT -D_REENTRANT -pthread  -MD -MP 
-MF .deps/IPCMessageTypeName.o.pp 
/usr/pkgsrc/www/firefox/work/build/ipc/ipdl/IPCMessageTypeName.cpp
In file included from 
/usr/pkgsrc/www/firefox/work/build/dist/system_wrappers/netinet/in.h:3:0,
                 from /usr/pkg/include/nspr/prinet.h:38,
                 from 
/usr/pkgsrc/www/firefox/work/.buildlink/include/nspr/prio.h:19,
                 from 
/usr/pkgsrc/www/firefox/work/build/dist/system_wrappers/prio.h:3,
                 from 
/usr/pkgsrc/www/firefox/work/build/dist/include/nsExceptionHandler.h:24,
                 from 
/usr/pkgsrc/www/firefox/work/build/dist/include/ipc/IPCMessageUtils.h:32,
                 from 
/usr/pkgsrc/www/firefox/work/build/dist/include/mozilla/ipc/ByteBuf.h:14,
                 from 
/usr/pkgsrc/www/firefox/work/build/dist/include/mozilla/ipc/ProtocolUtils.h:21,
                 from 
/usr/pkgsrc/www/firefox/work/build/ipc/ipdl/IPCMessageTypeName.cpp:5:
/usr/pkgsrc/www/firefox/work/build/ipc/ipdl/IPCMessageTypeName.cpp:8:12: 
error: 'std::__uint32_t' has not been declared
 using std::uint32_t;
            ^
gmake[3]: *** 
[/usr/pkgsrc/www/firefox/work/firefox-63.0.1/config/rules.mk:1112: 
IPCMessageTypeName.o] Error 1
gmake[3]: Leaving directory '/usr/pkgsrc/www/firefox/work/build/ipc/ipdl'
gmake[2]: *** 
[/usr/pkgsrc/www/firefox/work/firefox-63.0.1/config/recurse.mk:74: 
ipc/ipdl/target] Error 2
gmake[2]: Leaving directory '/usr/pkgsrc/www/firefox/work/build'
gmake[1]: *** 
[/usr/pkgsrc/www/firefox/work/firefox-63.0.1/config/recurse.mk:34: 
compile] Error 2
gmake[1]: Leaving directory '/usr/pkgsrc/www/firefox/work/build'
gmake: *** 
[/usr/pkgsrc/www/firefox/work/firefox-63.0.1/config/rules.mk:432: all] 
Error 2


Any ideas?