--- regex/regex.c.orig	2022-04-21 17:46:06.786845467 +0300
+++ regex/regex.c	2022-04-21 16:46:41.670051683 +0300
@@ -127,6 +127,8 @@
 #  else
 char *malloc ();
 char *realloc ();
+void abort ();
+void free ();
 #  endif
 
 /* When used in Emacs's lib-src, we need to get bzero and bcopy somehow.