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	2025-04-15 23:42:45.677267898 +0300
@@ -562,7 +562,7 @@
 #ifdef __i386__
 
 /* fix for glibc 2.1 */
-#ifndef REG_EIP
+#if defined(REG_EIP) && !defined(__banan_os__)
 #define REG_EIP EIP
 #define REG_EBP EBP
 #endif