binutils fail building "x11/wxGTK30" on macppc-current?

Building "x11/wxGTK30" on macppc-7.99.34 fails with a curious error:

[...]
libtool  --mode=link --tag=CC c++ -rpath /usr/pkg/lib -shared -o /var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/libwx_baseu_net-3.0.la   netdll_fs_inet.lo  netdll_ftp.lo  netdll_http.lo  netdll_protocol.lo  netdll_sckaddr.lo  netdll_sckfile.lo  netdll_sckipc.lo  netdll_sckstrm.lo  netdll_socket.lo  netdll_url.lo  netdll_socketiohandler.lo netdll_sockunix.lo -L/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib    -L/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib  -version-number 0:2:0    -lwxregexu-3.0  -pthread -L/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib -Wl,-R/usr/pkg/lib -L/usr/X11R7/lib -Wl,-R/usr/X11R7/lib   -Wl,--version-script,/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/version-script -lz -lexecinfo -lm -lossaudio -lwx_baseu-3.0
*** [buildlink3] Warning: libtool replaced -lwxregexu-3.0 with /var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/libwxregexu-3.0.la
*** [buildlink3] Warning: libtool replaced -lwx_baseu-3.0 with /var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/libwx_baseu-3.0.la
libtool: link: gcc -shared  -fPIC -DPIC  .libs/netdll_fs_inet.o .libs/netdll_ftp.o .libs/netdll_http.o .libs/netdll_protocol.o .libs/netdll_sckaddr.o .libs/netdll_sckfile.o .libs/netdll_sckipc.o .libs/netdll_sckstrm.o .libs/netdll_socket.o .libs/netdll_url.o .libs/netdll_socketiohandler.o .libs/netdll_sockunix.o   -Wl,-rpath,/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/.libs -Wl,-rpath,/usr/pkg/lib -L/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/.libs -L/var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib -L/var/tmp/pkgsrc/x11/wxGTK30/work/.buildlink/lib -L/var/tmp/pkgsrc/x11/wxGTK30/work/.x11-buildlink/lib -lwx_baseu-3.0 -lwxregexu-3.0 -lz -lexecinfo -lm -lossaudio  -pthread -Wl,-R/usr/pkg/lib -Wl,-R/usr/X11R7/lib -Wl,--version-script -Wl,/var/tmp/pkgsrc/x11/wxGTK30/work/wx
 Widgets-3.0.2/version-script   -pthread -Wl,-soname -Wl,libwx_baseu_net-3.0.so.0 -o /var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2/lib/.libs/libwx_baseu_net-3.0.so.0.2.0
ld: BFD (NetBSD Binutils nb1) 2.26.20160125 assertion fail /x/current/src/external/gpl3/binutils/dist/bfd/elflink.c:2637
ld: BFD (NetBSD Binutils nb1) 2.26.20160125 assertion fail /x/current/src/external/gpl3/binutils/dist/bfd/elflink.c:2637
*** Error code 1

Stop.
make: stopped in /var/tmp/pkgsrc/x11/wxGTK30/work/wxWidgets-3.0.2
*** Error code 1

Stop.
make[1]: stopped in /x/pkgsrc/x11/wxGTK30
*** Error code 1

Stop.
make: stopped in /x/pkgsrc/x11/wxGTK30


The referenced line appears to be:

2636           BFD_ASSERT (weakdef->root.type == bfd_link_hash_defined
2637                       || weakdef->root.type == bfd_link_hash_defweak);

I don't really have toolchain-fu to understand this...

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