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lib9: pass $PLAN9_TARGET via CPP for get9root fallback value Allows this function to always return the proper path in situations where the $PLAN9 environment variable is not set, i.e. a rc login shell.
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1 #include <u.h>

2 #include <libc.h>

4 char*

5 get9root(void)

6 {

7 	static char *s;

9 	if(s)

10 		return s;

12 	if((s = getenv("PLAN9")) != 0)

13 		return s;

14 	s = PLAN9_TARGET;

15 	return s;

16 }