'' | 0.* | 1.* | 2.[0-5]* )
cat >&2 <<_EOF_
- You must have autoconf 2.52 or later installed to compile $PROJECT.
+ You must have autoconf 2.60 or later installed to compile $PROJECT.
Download the appropriate package for your distribution/OS,
or get the source tarball at ftp://ftp.gnu.org/pub/gnu/autoconf/
_EOF_