diff -ruN tcc-0.9.27/tccrun.c tcc-0.9.27-banan_os/tccrun.c
--- tcc-0.9.27/tccrun.c	2017-12-17 10:27:05.000000000 +0200
+++ tcc-0.9.27-banan_os/tccrun.c	2025-06-28 20:30:00.914206003 +0300
@@ -30,7 +30,7 @@
 #ifdef CONFIG_TCC_BACKTRACE
 # ifndef _WIN32
 #  include <signal.h>
-#  ifndef __OpenBSD__
+#  if !defined(__OpenBSD__) && !defined(__banan_os__)
 #   include <sys/ucontext.h>
 #  endif
 # else