SYS_ENVIRON      3802 src/msdos.c    	  extern char **SYS_ENVIRON;
SYS_ENVIRON      3803 src/msdos.c    	  char **save_env = SYS_ENVIRON;
SYS_ENVIRON      3815 src/msdos.c    	  SYS_ENVIRON = envv;
SYS_ENVIRON      3818 src/msdos.c    	  SYS_ENVIRON = save_env;