minor cleanup

scsh/jcontrol1.c

@@ -27,7 +27,7 @@ int set_procmask(int hi, int lo, int *old_lo_p)
 
 int get_procmask(int *old_lo_p)
 {
-    sigset_t mask, old_mask;
+    sigset_t old_mask;
     int old_hi;
 
     sigprocmask(SIG_SETMASK, NULL, &old_mask);

scsh/re1.c

@@ -28,7 +28,6 @@ char *reg_match(const char *re, const char *string, int start,
 		scheme_value start_vec, scheme_value end_vec,  int *hit)
 {
     regexp *prog = regcomp(re);
-    int status;
 
     *hit = 0;
     if( !prog ) return regexp_error;

scsh/time1.c

@@ -279,7 +279,7 @@ scheme_value format_date(const char *fmt, int sec, int min, int hour,
     char *fmt2 = Malloc(char, 2+2*fmt_len); /* 1 extra for prefixed "x" char.*/
     int target_len = 1; 	/* 1 for the prefixed "x" char. Ugh. */
     int zone = 0; 		/* Are we using the time-zone? */
-    char c, *q, *target;
+    char *q, *target;
     const char *p;
     char *newenv[2], **oldenv = NULL;
     int result_len;