--- sbcl-2.6.2/src/runtime/os-common.c.orig	2026-02-27 19:08:09.000000000 +0100
+++ sbcl-2.6.2/src/runtime/os-common.c	2026-02-28 12:50:27.888464433 +0100
@@ -499,6 +499,7 @@
 #endif
 
 #ifdef LISP_FEATURE_ELF
+#define ELF_TARGET_AMD64
 #include <elf.h>
 #ifndef SHF_GNU_RETAIN
 #define SHF_GNU_RETAIN (1 << 21)