follow-up for --showpaths

Ensure that memory allocations are freed up.

Windows:
  Fix a Windows compiler warning.
  Fix an undefined link symbol.

include/decl.h

@@ -342,7 +342,7 @@ struct instance_globals_d {
 
     /* new */
     boolean deferred_showpaths;
-    const char *deferred_showpaths_dir;
+    char *deferred_showpaths_dir;
 
     boolean havestate;
     unsigned long magic; /* validate that structure layout is preserved */

src/files.c

@@ -4482,12 +4482,19 @@ do_deferred_showpaths(int code)
     gd.deferred_showpaths = FALSE;
     reveal_paths(code);
 
+    /* cleanup before heading to an exit */
+    freedynamicdata();
+    dlb_cleanup();
+    l_nhcore_done();
+
 #ifdef UNIX
     after_opt_showpaths(gd.deferred_showpaths_dir);
 #else
+#ifndef WIN32
 #ifdef CHDIR
     chdirx(gd.deferred_showpaths_dir, 0);
 #endif
+#endif
 #if defined(WIN32) || defined(MICRO) || defined(OS2)
     nethack_exit(EXIT_SUCCESS);
 #else

src/save.c

@@ -1278,6 +1278,9 @@ freedynamicdata(void)
     if (options_set_window_colors_flag)
         options_free_window_colors();
 
+    if (glyphid_cache_status())
+        free_glyphid_cache();
+
     /* last, because it frees data that might be used by panic() to provide
        feedback to the user; conceivably other freeing might trigger panic */
     sysopt_release(); /* SYSCF strings */