--- current/src/external/bsd/tmux/usr.bin/tmux/Makefile	2026-02-15 12:20:42.430578626 +0200
+++ netbsd-10/src/external/bsd/tmux/usr.bin/tmux/Makefile	2026-02-16 16:39:08.426723697 +0200
@@ -264,9 +264,9 @@
 COPTS.input.c+=		-Wno-sign-compare -Wno-pointer-sign
 COPTS.mode-tree.c+=	-Wno-error=stack-protector
 COPTS.tty.c+=		-Wno-pointer-sign
-COPTS.utempter.c+=	${CC_WNO_STRINGOP_TRUNCATION}
-COPTS.window-copy.c+=	${CC_WNO_MAYBE_UNINITIALIZED} -Wno-pointer-sign
-COPTS.cmd-run-shell.c += ${CC_WNO_MAYBE_UNINITIALIZED}
+COPTS.utempter.c+=	${GCC_NO_STRINGOP_TRUNCATION}
+COPTS.window-copy.c+=	${GCC_NO_MAYBE_UNINITIALIZED} -Wno-pointer-sign
+COPTS.cmd-run-shell.c += ${GCC_NO_MAYBE_UNINITIALIZED}
 
 # The man page needs substitutions, but the dist file usurps the
 # output file suffix.