rem: if (setenv( "TZ", tz_name, 1)==-1) {
add: static char buf[256];  memcpy( buf, "TZ=",3); strcpy( buf+3, tz_name );  if (putenv( buf )==-1) {
context: inline static int set_TZ(char *tz_name){	if (setenv( "TZ", tz_name, 1/*overwrite*/)==-1) {		LOG(L_ERR,"ERROR:cpl-c:set_TZ: setenv failed -> unable to "			"switch to \"%s\"TimeZone\n",tz_name);		return -1;	}	tzset(); /* just to be sure */	return 0;}