m4sugar problem with update to autoconf 2.57

[David Relson]

Greetings,

I'm having problems with autoconf 2.57 and I need some help.  I'd been 
using 2.54 without any trouble, but needed to update to 2.57 (to keep up 
with my bogofilter co-developer).

I downloaded the .tgz, unpacked it, and ran "./configure --prefix=/usr && 
make && make check && make install".  It took a while, but all seemed to 
run correctly.

Returning to my project directory, I ran "autoreconf -fis" and got:

autom4te: no such file or directory: m4sugar/m4sugar.m4
autom4te: no such file or directory: m4sugar/m4sugar.m4
autoreconf: /usr/bin/autoconf failed with exit status: 1

Creating symlinks from ./m4sugar and ./autoconf to 
/usr/share/autoconf/m4sugar and /usr/share/autoconf/autoconf, I am able to 
run "autoreconf -fis" without any trouble.

I shouldn't have to manually link from my project directory to 
/usr/share/autoconf in order to run autoreconf.  I think that something is 
wrong.

Is this a known problem?   Is there a fix?

Thank you.

David