w32: Add support for curses

MinGW optionally includes pdcurses, so add support for it.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/configure b/configure
index 3036faf..ef51a58 100755
--- a/configure
+++ b/configure
@@ -1561,7 +1561,11 @@
 
 ##########################################
 # curses probe
-curses_list="-lncurses -lcurses"
+if test "$mingw32" = "yes" ; then
+    curses_list="-lpdcurses"
+else
+    curses_list="-lncurses -lcurses"
+fi
 
 if test "$curses" != "no" ; then
   curses_found=no