Commit 240faa59e81adc07c998eca0eccbee649a39af90
2009-09-10T15:44:15
canonicalize-lgpl: use native realpath if it works Forward-looking to when more platforms comply with POSIX 2008, but don't provide glibc extensions. For example, this could fix // handling in cygwin 1.7 (well, if cygwin didn't have bugs in .. handling). canonicalize can't use native realpath, for the same reason that it does not use resolvepath. * lib/canonicalize-lgpl.c (realpath): Guard with FUNC_REALPATH_WORKS. * lib/stdlib.in.h (realpath): Make declaration optional based on HAVE_REALPATH. * m4/canonicalize-lgpl.m4 (gl_CANONICALIZE_LGPL): Check whether native realpath works. * m4/stdlib_h.m4 (gl_STDLIB_H_DEFAULTS): Provide default. * modules/stdlib (Makefile.am): Substitute witness. Signed-off-by: Eric Blake <ebb9@byu.net>