SYS_ENVIRON      3809 src/msdos.c    	  extern char **SYS_ENVIRON;
SYS_ENVIRON      3810 src/msdos.c    	  char **save_env = SYS_ENVIRON;
SYS_ENVIRON      3822 src/msdos.c    	  SYS_ENVIRON = envv;
SYS_ENVIRON      3825 src/msdos.c    	  SYS_ENVIRON = save_env;