--- src/kmk/kbuild.c.orig	2009-11-03 15:54:22.087946451 -0500
+++ src/kmk/kbuild.c	2009-11-03 15:55:27.469776996 -0500
@@ -135,7 +135,8 @@
 
 #elif defined(__FreeBSD__)
     rc = readlink("/proc/curproc/file", szTmp, GET_PATH_MAX - 1);
-    if (rc < 0 || rc == GET_PATH_MAX - 1)
+    if (rc < 0 || rc == GET_PATH_MAX - 1 ||
+	(rc == 7 && strncmp(szTmp, "unknown", 7) == 0))
     {
         rc = -1;
 # if 0 /* doesn't work because l_name isn't always absolute, it's just argv0 from exec or something. */