Failed tests with macOS Sequoia 15.5

Hi, I just built RCS 5.10.1 on my MacBook and it failed a number of 
tests. I haven't investigated further but it fails the following 6 
tests. co/ci seem to work OK.

Regards,
Mark.

FAIL: t160
FAIL: t180
FAIL: t420
FAIL: t470
FAIL: t805
FAIL: t999

I also had to apply the Gentoo patch

+diff '--color=auto' -ruN rcs-5.10.1.orig/src/b-divvy.c 
rcs-5.10.1/src/b-divvy.c
+--- rcs-5.10.1.orig/src/b-divvy.c	2022-01-27 03:13:37.000000000 +0100
++++ rcs-5.10.1/src/b-divvy.c	2024-11-11 01:25:31.633541338 +0100
+@@ -40,7 +40,7 @@
+   struct divvy *divvy = TMALLOC (struct divvy);
+
+   divvy->name = name;
+-  obstack_alloc_failed_handler = xalloc_die;
++  obstack_alloc_failed_handler = (__attribute_noreturn__ void 
(*)(void))xalloc_die;
+   obstack_init (&divvy->space);
+
+   /* Set alignment to avoid segfault (on some hosts).