#include <unistd.h> #undef getenv static char *home(char *subpath){	char *s, *e; 	if((s = getenv("home")) != nil){		e = cleanname(smprint("%s/%s", s, subpath));		free(s);	}else		e = strdup("/tmp"); 	return e;} char *npe_getenv(char *s){	static char *e; 	free(e);	e = nil; 	if((e = getenv(s)) != nil)		return e; 	if(strcmp(s, "XDG_RUNTIME_DIR") == 0 || strcmp(s, "XDG_CACHE_HOME") == 0)		return "/tmp";	if(strcmp(s, "XDG_CONFIG_HOME") == 0 || strcmp(s, "XDG_DATA_HOME") == 0)		return home("lib"); 	if(strcmp(s, "HOME") == 0)		s = "home";	else if(strcmp(s, "USER") == 0)		s = "user"; 	e = getenv(s); 	return e;}