Index: xmalloc.h
--- xmalloc.h.orig	2009-01-04 20:32:34.000000000 +0100
+++ xmalloc.h	2019-01-07 20:05:54.821108000 +0100
@@ -38,6 +38,10 @@
 
 #endif /* !PTR_T */
 
+#define xmalloc  readline_xmalloc
+#define xrealloc readline_xrealloc
+#define xfree    readline_xfree
+
 extern PTR_T xmalloc PARAMS((size_t));
 extern PTR_T xrealloc PARAMS((void *, size_t));
 extern void xfree PARAMS((void *));