kconfig: Fix menuconfig on Solaris

The following two bits are needed to get it working (not as colorful as on
Linux, but it functions) for me.  First, unless CURS_MACROS is defined,
scroll(x) doesn't get expanded to wscrl(x, 1).  I did some quick
grepping on Cygwin and Linux (debian/unstable) and didn't see
CURS_MACROS show up anywhere else, but to be safe I put it inside of
__sun__.  Next this uses libcurses instead of libncurses otherwise we
get a bunch of undefined refs to w32attrset, w32addch, acs32map and few
more.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/lxdialog/Makefile

 HOST_EXTRACFLAGS := -DLOCALE 
+ifeq ($(shell uname),SunOS)
+HOST_LOADLIBES   := -lcurses
+else
 HOST_LOADLIBES   := -lncurses
+endif
 
 ifeq (/usr/include/ncurses/ncurses.h, $(wildcard /usr/include/ncurses/ncurses.h))
         HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"

scripts/lxdialog/dialog.h

@@ -26,6 +26,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef __sun__
+#define CURS_MACROS
+#endif
 #include CURSES_LOC
 
 /*