re: Issues with native build of -10 on VAX

[matthew green <mrg%eterna23.net@localhost>]

odd.  i have to build 5 files in cc1plus with -O1 vs -O2 but
then i can build sancov.c natively.  if any of these 5 are
built -O2, the failure occurs.

now testing a full build...


.mrg.


Index: Makefile
===================================================================
RCS file: /cvsroot/src/external/gpl3/gcc/usr.bin/cc1plus/Makefile,v
retrieving revision 1.17.6.1
diff -p -u -r1.17.6.1 Makefile
--- Makefile	8 Oct 2023 14:35:22 -0000	1.17.6.1
+++ Makefile	24 Nov 2023 06:22:59 -0000
@@ -10,6 +10,13 @@ NOMAN=	1
 CPPFLAGS+=	-I${DIST}/gcc/cp
 CPPFLAGS.prefix.c+=     -DPREFIX=\"/usr\"
 
+# Avoid a GCC bug building GCC itself.
+.if ${MACHINE} == "vax"
+.for _a in class.c constraint.cc coroutines.cc call.c constexpr.c
+COPTS.${_a}+=	-O1
+.endfor
+.endif
+
 .include "../Makefile.backend"
 .include "../Makefile.backtrace"
 .include "../Makefile.libcpp"