configure on cygwin

[<wa...@hk...>]

I had to patch the configure script for cygwin:

*** configure   Sat Oct 29 15:49:12 2005
--- configure.OLD       Sat Oct 29 15:48:54 2005
***************
*** 7244,7250 ****
  for ac_dir in `echo "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
  do
    # Don't even attempt the hair of trying to link an X program!
!   for ac_extension in a so sl dll.a; do
      if test -r $ac_dir/libXt.$ac_extension; then
        ac_x_libraries=$ac_dir
        break 2
--- 7244,7250 ----
  for ac_dir in `echo "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
  do
    # Don't even attempt the hair of trying to link an X program!
!   for ac_extension in a so sl; do
      if test -r $ac_dir/libXt.$ac_extension; then
        ac_x_libraries=$ac_dir
        break 2