xedit: Changes to 'master'

[Alan Coopersmith]

 AUTHORS        |    2 
 COPYING        |   50 ++++++---
 Makefile.am    |    3 
 lisp/env.c     |  151 ----------------------------
 lisp/getenv.c  |   81 +++++++++++++++
 lisp/lisp.c    |    2 
 lisp/mathimp.c |   37 ------
 lisp/mp/mp.c   |   12 +-
 lisp/mp/mp.h   |    2 
 lisp/mp/mpi.c  |    8 -
 lisp/read.c    |    4 
 lisp/setenv.c  |  178 +++++++++++++++++++++++++++++++++
 realpath.c     |  306 ++++++++++++++++++++++++++++-----------------------------
 util.c         |    2 
 14 files changed, 470 insertions(+), 368 deletions(-)

New commits:
commit 33dacadbfb9adcb36c9b7ccd4f64d12e7995fd33
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Thu May 24 15:33:14 2012 -0300

    Avoid problems with builds with -Werror=format-security.
    
    Signed-off-by: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit 04ca5cd8abfe9851f0987b4739f9795e924024cf
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Thu May 24 15:29:01 2012 -0300

    Use proper pointer when computing "realpath" of a new file.
    
      In some special conditions it previously could omit a slash, and
    instead of creating foo/bar/baz would create foo/barbaz.
    
    Signed-off-by: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit 63c70c830c79f0b4cfc0f7393662a9cb1169973e
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Thu May 24 15:26:50 2012 -0300

    Correct 64 bit overflow check and bignum code.
    
    Signed-off-by: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit c110109f1710758d7c87c05720bdff4df316fc7d
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Thu May 24 14:40:35 2012 -0300

    Update fallback implementation of missing libc functions
    
      This commit updates realpath.c from
    http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/realpath.c?rev=1.14;content-type=text/plain
    and lisp/env.c from
    http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/getenv.c?rev=1.10;content-type=text/plain
    and
    http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/setenv.c?rev=1.13;content-type=text/plain
    
      The update reason is to replace files under "4 clause BSD", that
    is considered problematic or require special documentation notation
    or conditions when redistributing free software.
    
    Signed-off-by: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>