gcc/libiberty/rename.c
DJ Delorie aaa5f039eb configure.in (MAKEINFO, PERL): Detect these.
* configure.in (MAKEINFO, PERL): Detect these.
(--enable-maintainer-mode): Add.
* configure: Regenerate.
* Makefile.in (MAKEINFO, PERL): Define.
(libiberty.info, libiberty.dvi, libiberty.html): New.
(CFILES): Add bsearch.c.
(CONFIGURED_OFILES): New, list of objects configure might add.
(maint-missing, maint-buildall): New, for maintainers only.
(clean, mostlyclean): Add info/dvi/html files.
* libiberty.texi, copying-lib.texi, obstacks.texi, functions.texi: New.
* gather-docs: New, for maintainers.
* maint-tool: New, for maintainers.
* alloca.c, atexit.c, basename.c, bcmp.c, bcopy.c, bsearch.c,
bzero.c, calloc.c, clock.c, configure.in, configure, getcwd.c,
getpagesize.c, getpwd.c, index.c, memchr.c, memcmp.c, memcpy.c,
memmove.c, memset.c, putenv.c, rename.c, rindex.c, setenv.c,
sigsetmask.c, strcasecmp.c, strchr.c, strdup.c, strerror.c,
strncasecmp.c, strncmp.c, strrchr.c, strstr.c, strtod.c, strtol.c,
tmpnam.c, vfork.c, vprintf.c, waitpid.c, xatexit.c, xexit.c,
xmalloc.c, xmemdup.c, xstrdup.c, xstrerror.c: Add or update
documentation.

Co-Authored-By: Phil Edwards <pedwards@disaster.jaj.com>

From-SVN: r45828
2001-09-26 14:16:17 -04:00

38 lines
621 B
C

/* rename -- rename a file
This function is in the public domain. */
/*
@deftypefn Supplemental int rename (const char *@var{old}, const char *@var{new})
Renames a file from @var{old} to @var{new}. If @var{new} already
exists, it is removed.
@end deftypefn
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
int
rename (zfrom, zto)
char *zfrom;
char *zto;
{
if (link (zfrom, zto) < 0)
{
if (errno != EEXIST)
return -1;
if (unlink (zto) < 0
|| link (zfrom, zto) < 0)
return -1;
}
return unlink (zfrom);
}