AS_LN_S: fall back on 'cp -pR' (not 'cp -p') if 'ln -s' fails
commit17ea0df46f819a9b64c21151983a5c5b8561fefb
authorPaul Eggert <eggert@cs.ucla.edu>
Mon, 26 Dec 2011 08:34:13 +0000 (26 00:34 -0800)
committerPaul Eggert <eggert@cs.ucla.edu>
Mon, 26 Dec 2011 08:35:06 +0000 (26 00:35 -0800)
tree08470298b79cc6677dcdaf949e5e0e5801e9d721
parentb854606885ca849e0b5a1488b6dc82105d3c138d
AS_LN_S: fall back on 'cp -pR' (not 'cp -p') if 'ln -s' fails

This works better for symlinks to directories.
Problem reported by Eli Zaretskii via Werner Lemberg in
<http://lists.gnu.org/archive/html/bug-autoconf/2011-12/msg00006.html>.
* NEWS:
* doc/autoconf.texi (Particular Programs): Document this.
* lib/m4sugar/m4sh.m4 (_AS_LN_S_PREPARE): Implement this.
ChangeLog
NEWS
doc/autoconf.texi
lib/m4sugar/m4sh.m4