When executing make, I receive an error that ssp.h doesn't exist, yet it does.

    /usr/local/lib/gcc13/gcc/x86_64-portbld-freebsd15.0/13.3.0/include/ssp/stdio.h:38:10: fatal error: ssp.h: No such file or directory
    38 | #include <ssp.h>

yet it exists 

    [root@navitcl2 /srv/~scrap/tcltls-216954cfae]# locate ssp.h
    /usr/include/ssp/ssp.h
    [root@navitcl2 /srv/~scrap/tcltls-216954cfae]# ls -lha /usr/include/ssp/ssp.h
    -r--r--r--  1 root wheel  4.0K Aug 22 04:24 /usr/include/ssp/ssp.h

any thoughts?

Many Thanks,
-mookie