--- ./src/lib/libast/misc/fs3d.c.orig	2014-11-11 12:09:50.142397030 +0000
+++ ./src/lib/libast/misc/fs3d.c	2014-11-11 12:11:19.667992242 +0000
@@ -39,6 +39,7 @@
 int
 fs3d(register int op)
 {
+#if SHOPT_FS_3D
 	register int	cur;
 	register char*	v;
 	char		val[sizeof(FS3D_off) + 8];
@@ -95,6 +96,7 @@ fs3d(register int op)
 	return cur;
  nope:
 	fsview = -1;
+#endif
 	return 0;
 }
 
@@ -107,6 +109,7 @@ fs3d(register int op)
 
 #undef	mount
 
+#if SHOPT_FS_3D
 extern int	mount(const char*, char*, int, void*);
 
 int
@@ -114,3 +117,4 @@ fs3d_mount(const char* source, char* tar
 {
 	return mount(source, target, flags, data);
 }
+#endif
--- ./src/lib/libast/path/pathkey.c.orig	2014-11-11 12:11:29.333948438 +0000
+++ ./src/lib/libast/path/pathkey.c	2014-11-11 12:11:47.067868209 +0000
@@ -109,8 +109,10 @@ pathkey_20100601(const char* lang, const
 		 * 3D
 		 */
 
+#if SHOPT_FS_3D
 		if (!flags && fs3d(FS3D_TEST) && (c = mount(path, tmp, FS3D_GET|FS3D_ALL|FS3D_SIZE(PATH_MAX), NiL)) > 1 && c < PATH_MAX)
 			path = tmp;
+#endif
 
 		/*
 		 * preroot
--- ./src/lib/libcoshell/coinit.c.orig	2014-11-11 12:08:49.438671153 +0000
+++ ./src/lib/libcoshell/coinit.c	2014-11-11 12:09:25.956506292 +0000
@@ -355,6 +355,7 @@ coinitialize(Coshell_t* co, int flags)
 			p = (int)sfstrtell(sp);
 			sfprintf(sp, "vpath ");
 			n = PATH_MAX;
+#if SHOPT_FS_3D
 			if (fs3d(FS3D_TEST))
 				for (;;)
 				{
@@ -370,6 +371,7 @@ coinitialize(Coshell_t* co, int flags)
 					}
 				}
 			else
+#endif
 			{
 				m = 0;
 				sfprintf(sp, "- /#option/2d");