1 #include <u.h>
2 #include <libc.h>
3 
4 char*
5 get9root(void)
6 {
7 	static char *s;
8 
9 	if(s)
10 		return s;
11 
12 	if((s = getenv("PLAN9")) != 0)
13 		return s;
14 	/* could do better - search $PATH */
15 	s = "/usr/local/plan9";
16 	return s;
17 }