Can't build cairo on HEAD

[newhouse%gandpline.com@localhost (Paul Newhouse)]

Running on:

NetBSD mail 5.0.2 NetBSD 5.0.2 (MAIL) #5: Tue Apr 26 17:38:29 PDT 2011  
root@mail:/usr/src/BUILD_OBJ/sys/arch/i386/compile/MAIL i386

In /usr/pkgsrc I had done a "cvs updat -Pd" shortly before running:

        (cd graphics/cairo && rm -fr work && cvs update -Pd && make distclean 
clean install)
        ...
        ===> Building for cairo-1.12.14nb1
        /usr/bin/make  all-recursive
        Making all in src
        /usr/bin/make  all-am
          CC     cairo-analysis-surface.lo
        In file included from /usr/include/string.h:95:0,
                         from cairoint.h:59,
                         from cairo-analysis-surface.c:37:
        
/usr/pkg/gcc47/lib/gcc/i386--netbsdelf/4.7.3/include/ssp/string.h:38:17: fatal 
error: ssp.h: No such file or directory
        compilation terminated.
        *** Error code 1
        
        Stop.
        make: stopped in /usr/pkgsrc/graphics/cairo/work/cairo-1.12.14/src
        *** Error code 1

Where is ssp.h supposed to come from?  Is my userland source base too old??

TIA,
Paul