[ChangeLog]

Assume support for memcmp, memcpy, memmove, memset.
This simplifies the code a bit.  All current platforms have these,
as they are required for C89.  If this turns into a problem we
can add the gnulib modules for these (a 1-line change to Makefile.in).
* configure.in: Don't check for memcmp, memcpy, memmove, memset.
[lib-src/ChangeLog]
Assume support for memcmp, memcpy, memmove, memset.
* etags.c (absolute_filename): Assume memmove exists.
[src/ChangeLog]
Assume support for memcmp, memcpy, memmove, memset.
* lisp.h, sysdep.c (memcmp, memcpy, memmove, memset):
* regex.c (memcmp, memcpy):
Remove; we assume C89 now.

* gmalloc.c (memcpy, memset, memmove): Remove; we assume C89 now.
(__malloc_safe_bcopy): Remove; no longer needed.

2 files changed, 5 insertions, 9 deletions

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 098ee06c762..c2b1b106c15 100644
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Assume support for memcmp, memcpy, memmove, memset.
+        * etags.c (absolute_filename): Assume memmove exists.
+
 2011-07-02  Jason Rumney  <jasonr@gnu.org>
 
         * emacsclient.c (decode_options) [WINDOWSNT]: Avoid tty mode on
diff --git a/lib-src/etags.c b/lib-src/etags.c
index 693c999047f..bba4b8e7267 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -6567,22 +6567,13 @@ absolute_filename (char *file, char *dir)
               else if (cp[0] != '/')
                 cp = slashp;
 #endif
-#ifdef HAVE_MEMMOVE
               memmove (cp, slashp + 3, strlen (slashp + 2));
-#else
-              /* Overlapping copy isn't really okay */
-              strcpy (cp, slashp + 3);
-#endif
               slashp = cp;
               continue;
             }
           else if (slashp[2] == '/' || slashp[2] == '\0')
             {
-#ifdef HAVE_MEMMOVE
               memmove (slashp, slashp + 2, strlen (slashp + 1));
-#else
-              strcpy (slashp, slashp + 2);
-#endif
               continue;
             }
         }