MFH: r541425

sysutils/nss_ndb: fix build on GCC architectures

Use newer GCC to workaround GCC 4.2 bug:
cc -fstack-protector-strong -g -o makendb makendb.o nss_ndb.o -lpthread -ldl
cc: Internal error: Segmentation fault (program ld)

Approved by: portmgr (fix build blanket)