symon fails to build on sparc64 because it uses -Wpedantic which base-gcc
does not like.

cc -O2 -pipe -g -Wall -Wpedantic -Wextra -Wno-unused-parameter -Werror
-I../platform/OpenBSD -I. -o error.o -c error.c
cc1: error: unrecognized command line option "-Wpedantic"

Just drop -Wpedantic.

See https://cranky.work/sparc64/2025-11-29/sysutils/symon,-main.log
-- 
:wq Claudio

Index: patches/patch-Makefile_inc
===================================================================
RCS file: patches/patch-Makefile_inc
diff -N patches/patch-Makefile_inc
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ patches/patch-Makefile_inc	4 Dec 2025 12:39:08 -0000
@@ -0,0 +1,14 @@
+cc1: error: unrecognized command line option "-Wpedantic"
+
+Index: Makefile.inc
+--- Makefile.inc.orig
++++ Makefile.inc
+@@ -2,7 +2,7 @@ V=2.89
+ 
+ AR?=	ar
+ CC?=	cc
+-CFLAGS+=-g -Wall -Wpedantic -Wextra -Wno-unused-parameter -Werror
++CFLAGS+=-g -Wall -Wextra -Wno-unused-parameter -Werror
+ INSTALL?=install
+ LORDER?=lorder
+ TSORT?=tsort