2011-06-06 Eric Blake <eblake@redhat.com>
+ canonicalize-lgpl: work around AIX realpath bug
+ * m4/canonicalize.m4 (gl_FUNC_REALPATH_WORKS): Expose AIX bug.
+ * doc/posix-functions/realpath.texi (realpath): Document it.
+ Reported by Bruno Haible.
+
strerror: work around FreeBSD bug
* lib/strerror.c (strerror): Special case 0.
Reported by Bruno Haible.
This function fails to recognize non-directories followed @samp{..} on
some platforms:
cygwin.
+@item
+This function misbehaves on consecutive slashes on some platforms:
+AIX 7.
@end itemize
Portability problems not fixed by Gnulib:
-# canonicalize.m4 serial 19
+# canonicalize.m4 serial 20
dnl Copyright (C) 2003-2007, 2009-2011 Free Software Foundation, Inc.
AC_CHECK_FUNCS_ONCE([realpath])
AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [
touch conftest.a
+ mkdir conftest.d
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
]GL_NOCRASH[
#include <stdlib.h>
+ #include <string.h>
]], [[
int result = 0;
{
if (name != NULL)
result |= 4;
}
+ {
+ char *name1 = realpath (".", NULL);
+ char *name2 = realpath ("conftest.d//./..", NULL);
+ if (strcmp (name1, name2) != 0)
+ result |= 8;
+ }
return result;
]])
], [gl_cv_func_realpath_works=yes], [gl_cv_func_realpath_works=no],
[gl_cv_func_realpath_works="guessing no"])
+ rm -Rf conftest.a conftest.d
])
if test "$gl_cv_func_realpath_works" = yes; then
AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath()