Autoconf example scripts for site defaults

[Harald Oehlmann]

In respect to page:
http://www.gnu.org/software/autoconf/manual/autoconf-2.67/html_node/Site-Defaults.html#Site-Defaults

the last example did not work for me:
--/usr/local/share/config.site--
test "$libdir" = '${exec_prefix}/lib' && libdir='${exec_prefix}/lib64'
--EOF--

There was a "true" required as last command.
If the test failed, (library application with no exec_prefix defined)
the site script returned "$?=1" and the configure script stopped with a
locale site script error.

This was autoconf 2.59 and I am not shure, if it is also valid for 2.67
but it is a point I struggeld hard as a novice...

Application:
http://wiki.tcl.tk/3298

Thank you,
Harald