Squash a warning when compiling with a some curses library configurations.

ncurses can optionally declare tigetstr(), tigetnum() and tigetflags() with a
const char * argument, indicated by the NCURSES_CONST macro.  So we use this 
macro, if available, to optionally declare cap2str.iname as const char *.


git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@530 13b04d17-f746-0410-82c6-800466cd88b0

source/term.c

@@ -103,7 +103,12 @@ extern  char    *getenv();
 typedef struct cap2info
 {
 	const char *	longname;
-	const char *	iname;
+/* ncurses can optionally declare tigetstr(), tigetnum() and tigetflags() with
+ * a const char * argument. */
+#ifdef NCURSES_CONST
+NCURSES_CONST
+#endif
+	char *	iname;
 	const char *	tname;
 	int 		type;
 	void *		ptr;