Solaris' term.h requires curses.h to be included first.
This 
causes the configure script to emit lines about a bug in 
autoconf. From the autoconf mailing lists, their standard 
response is to fix the configure script, see e.g. 
http://mail.gnu.org/archive/html/bug-autoconf/2003-05/msg00118.html

The following patch against 2.3 branch for configure
and configure.in makes things a bit happier. 

Note that Include/py_curses.h already includes curses.h 
before term.h, this just fixes the breakage of configure.