(mempcpy): Define only if not already defined.

Reported by Collin Rogowski.

diff --git a/src/sys2.h b/src/sys2.h
index 06f70bd1520978014b2048584b14b64a3dee1ca7..a0045f13c06ba94bd6887e243bdaae159141c6b2 100644 (file)
--- a/src/sys2.h
+++ b/src/sys2.h
@@ -167,7 +167,7 @@ off_t lseek ();
 
 #include "xalloc.h"
 
-#ifndef HAVE_MEMPCPY
+#if ! defined HAVE_MEMPCPY && ! defined mempcpy
 /* Be CAREFUL that there are no side effects in N.  */
 # define mempcpy(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N)))
 #endif