Log Message:
gcc9: pull a hack for the __stack_chk_fail_local() on NetBSD.

Taken from src/external/gpl3/gcc/dist/gcc/targhooks.c in the NetBSD HEAD:
 http://cvsweb.netbsd.org/bsdweb.cgi/src/external/gpl3/gcc/dist/gcc/targhooks.c#rev1.2
via pkgsrc/lang/gcc49 in Attic:
 http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/lang/gcc49/patches/Attic/patch-gcc_targhooks.c#rev1.1

This fixes an error during make configure in pkgsrc/x11/qt6-qtbase
on NetBSD/i386 9.3 as mentioned in PR/57151.

Bump PKGREVISION.