$OpenBSD: patch-libgcc_libgcc2_c,v 1.1.1.1 2021/08/03 10:04:15 pascal Exp $
Index: libgcc/libgcc2.c
--- libgcc/libgcc2.c.orig
+++ libgcc/libgcc2.c
@@ -2226,6 +2226,7 @@ mprotect (char *addr, int len, int prot)
 #endif /* WINNT && ! __CYGWIN__ */
 
 #ifdef TRANSFER_FROM_TRAMPOLINE
+#include <sys/mman.h>
 TRANSFER_FROM_TRAMPOLINE
 #endif
 #endif /* L_trampoline */
