diff --git a/x11-wm/afterstep-stable/files/patch-libAfterBase-selfdiag.c b/x11-wm/afterstep-stable/files/patch-libAfterBase-selfdiag.c
new file mode 100644
index 000000000000..12a37a2ba82b
--- /dev/null
+++ b/x11-wm/afterstep-stable/files/patch-libAfterBase-selfdiag.c
@@ -0,0 +1,14 @@
+--- libAfterBase/selfdiag.c.orig	2022-07-08 13:20:45.173997000 -0700
++++ libAfterBase/selfdiag.c	2022-07-08 13:22:14.990203000 -0700
+@@ -89,6 +89,11 @@
+ proc_tables   _ptabs;
+ char         *_elf_start = (char *)0x08048000;
+ 
++#ifdef HAVE_ELF_H
++# if (defined(HAVE_ELF32_DYN_D_TAG) || defined(HAVE_ELF64_DYN_D_TAG)) && HAVE_DECL_ELFW
++extern ElfW(Dyn) _DYNAMIC[];
++#endif
++#endif
+ 
+ void
+ get_proc_tables (proc_tables * ptabs)