GDB (CVS) broken under GNU.

[Alfred M. Szmidt]

Hi,
Looks like we have more fun MAXPATHLEN/PATH_MAX problems.
And as we don't define them the follow change will make the
compilation of GDB barf with a nice error that MAXPATHLEN and/or
PATH_MAX not being defined.

2002-01-19  Andrew Cagney  <ac131313@redhat.com>

        * utils.c: Include <sys/param.h> for MAXPATHLEN.
        (gdb_realpath): Use MAXPATHLEN when PATH_MAX is not defined.

Before reporting this to the GDB maintainers, I would like to get input
on the following code. This would make GDB use canonicalize_file_name() on
all systems were it is declared, which I find more sane then to use the
broken realpath() function.

2002-02-22  Alfred M. Szmidt <ams@kemisten.nu>

        * utils.c: (gdb_realpath) Use canonicalize_file_name if declared.

--- utils.c.~1.64.~     Sat Feb 16 22:11:32 2002
+++ utils.c     Fri Feb 22 15:36:33 2002
@@ -2526,7 +2526,9 @@ string_to_core_addr (const char *my_stri
 char *
 gdb_realpath (const char *filename)
 {
-#ifdef HAVE_REALPATH
+#ifdef _GNU_SOURCE
+  return canonicalize_file_name (filename);
+#elif HAVE_REALPATH
 #if defined (PATH_MAX)
   char buf[PATH_MAX];
 #elif defined (MAXPATHLEN)
  char *rp = realpath (filename, buf);
  return xstrdup (rp ? rp : filename);
#else
  return xstrdup (filename);
#endif
}

-- 
Alfred M. Szmidt