---
 xfree.c   |    3 +++
 xmalloc.c |    5 +++++
 xmalloc.h |    8 ++++++++
 3 files changed, 16 insertions(+)

--- xfree.c
+++ xfree.c	2018-09-20 06:41:57.485165699 +0000
@@ -47,3 +47,6 @@ xfree (PTR_T string)
   if (string)
     free (string);
 }
+
+#undef xfree
+extern void xfree PARAMS((void *)) __attribute__ ((weak, alias ("_rl_xfree")));
--- xmalloc.c
+++ xmalloc.c	2018-09-20 06:41:57.485165699 +0000
@@ -73,3 +73,8 @@ xrealloc (PTR_T pointer, size_t bytes)
     memory_error_and_abort ("xrealloc");
   return (temp);
 }
+
+#undef xmalloc
+#undef xrealloc
+extern PTR_T xmalloc PARAMS((size_t)) __attribute__ ((weak, alias ("_rl_xmalloc")));
+extern PTR_T xrealloc PARAMS((void *, size_t)) __attribute__ ((weak, alias ("_rl_xrealloc")));
--- xmalloc.h
+++ xmalloc.h	2018-09-20 06:41:57.485165699 +0000
@@ -38,6 +38,14 @@
 
 #endif /* !PTR_T */
 
+#undef xmalloc
+#undef xrealloc
+#undef xfree
+
+#define xmalloc  _rl_xmalloc
+#define xrealloc _rl_xrealloc
+#define xfree    _rl_xfree
+
 extern PTR_T xmalloc (size_t);
 extern PTR_T xrealloc (void *, size_t);
 extern void xfree (void *);