[Bug regex/1054] New: regex_internal.h redefines __mempcpy when used outside libc

["eggert at gnu dot org" <sourceware-bugzilla@sources.redhat.com>]

I just now adapted coreutils to bundle the new regular expression implementation
of libc instead of the old one that it was using.  But I ran into a problem when
I built this implementation under Debian GNU/Linux 3.1 r0a.  The problem is that
Debian's include files (which are from glibc) #define __mempcpy for efficiency,
and this clashes with the #define in regex_internal.h.  I will attach the patch I
used to work around the problem; it uses an ifndef to avoid the redefinition.
It might not hurt to put similar wrappers around the other symbols thus defined,
I suppose.

This patch is currently installed in gnulib, and I'm filing this bug report to
have it propagated into libc proper.  Thanks.

-- 
           Summary: regex_internal.h redefines __mempcpy when used outside
                    libc
           Product: glibc
           Version: 2.3.5
            Status: NEW
          Severity: normal
          Priority: P2
         Component: regex
        AssignedTo: gotom at debian dot or dot jp
        ReportedBy: eggert at gnu dot org
                CC: glibc-bugs-regex at sources dot redhat dot com,glibc-
                    bugs at sources dot redhat dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://sources.redhat.com/bugzilla/show_bug.cgi?id=1054

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