Some packages need to specify -std=gnu89 to compile, and gcc51 defaults to
gnu11 now.
Also, updated mozilla-nss-nspr to 3.19 and 4.10.8, respectively.

*** 38,47 ****
--- 38,50 ----
  BUILD_DEPENDS_IPS=
  RUN_DEPENDS_IPS=
  
  CONFIGURE_OPTS="--with-internal-glib"
  
+ # Use old gcc4 standards level for this.
+ CFLAGS="$CFLAGS -std=gnu89"
+ 
  init
  download_source $PROG $PROG $VER
  prep_build
  build
  make_isa_stub