NetBSD-9.4 and SSP

[Sad Clouds <cryintothebluesky%gmail.com@localhost>]

Hi, I'm getting build failures with pkgsrc wm/cde on recent NetBSD-9.4.
This seems to be related to SSP hardening, so not sure if this change
is recent with this version of NetBSD.

This package used to build OK on NetBSD-9.3. Has anything changed with
regard to getcwd() on NetBSD-9.4?

Configure script checks if getcwd() is implemented, doesn't find it and
provides its own implementation, which then conflicts with symbols in
/usr/include/ssp/unistd.h

iffe: test: syscall(SYS_getcwd,buf,len) implemented ... no
iffe: test: is ( _lib_sysgetcwd ) true ... no
iffe: test: is ( _lib_sysgetcwd ) true ... no
+ cc -D_BLD_DLL -fPIC -D_BLD_ast -DSHOPT_DYNAMIC=1 -DSHOPT_NAMESPACE=1 -DSHOPT_MULTIBYTE=1 -DSHOPT_STATS=1 -DSHOPT_BGX=1 -DSHOPT_AUDIT=1 -DSHOPT_KIA=1 -DSHOPT_HISTEXPAND=1 -DSHOPT_EDPREDICT=1 -DSHOPT_ESH=1 -DSHOPT_VSH=1 -DSHOPT_FIXEDARRAY=1 -DSHOPT_SUID_EXEC=1 -DSHOPT_BRACEPAT=1 -DSHOPT_ECHOPRINT=1 -I. -I/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast -Icomp -I/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/comp -Idir -I/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/dir -Iinclude -I/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/include -Istd -I/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/std -D_PACKAGE_ast -c /opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/misc/getcwd.c
/opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/misc/getcwd.c:144:1: error: redefinition of 'getcwd'
 getcwd(char* buf, size_t len)
 ^~~~~~
In file included from /usr/include/ssp/strings.h:34:0,
                 from /usr/include/strings.h:72,
                 from /usr/include/string.h:98,
                 from ./ast_sys.h:10,
                 from /opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/include/ast_std.h:64,
                 from /opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/include/ast.h:32,
                 from /opt/netbsd/pkg.objects/wm/cde/work.ultra10/cde-2.5.2/programs/dtksh/ksh93/src/lib/libast/misc/getcwd.c:26:
/usr/include/ssp/unistd.h:45:1: note: previous definition of 'getcwd' was here
 __ssp_redirect_raw(char *, getcwd, getcwd, (char *__buf, size_t __len),
 ^
mamake [lib/libast]: *** exit code 1 making getcwd.o