-R needs interpreter name, not SRFI 22

lib/chibi/tar.scm

@@ -280,17 +280,18 @@
         res))))
 
 (define (main args)
-  (cond
-    ((equal? "t" (car args))
-     (for-each (lambda (f) (write-string f) (newline)) (tar-files (cadr args))))
-    ((equal? "x" (car args))
-     (if (tar-safe? (cadr args))
-       (tar-extract (cadr args))
-       (error "tar file not a single relative directory" (cadr args))))
-    ((equal? "c" (car args))
-     (tar-create (cadr args) (cddr args)))
-    ((equal? "f" (car args))
-     (write-string
+  (let ((args (cdr args)))
+    (cond
+     ((equal? "t" (car args))
+      (for-each (lambda (f) (write-string f) (newline)) (tar-files (cadr args))))
+     ((equal? "x" (car args))
+      (if (tar-safe? (cadr args))
+          (tar-extract (cadr args))
+          (error "tar file not a single relative directory" (cadr args))))
+     ((equal? "c" (car args))
+      (tar-create (cadr args) (cddr args)))
+     ((equal? "f" (car args))
+      (write-string
        (utf8->string (tar-extract-file (cadr args) (car (cddr args))))))
-    (else
-     (error "unknown tar command" (car args)))))
+     (else
+      (error "unknown tar command" (car args))))))

main.c

@@ -545,7 +545,7 @@ sexp run_main (int argc, char **argv) {
       for (j=argc-1; j>=i; j--)
         args = sexp_cons(ctx, tmp=sexp_c_string(ctx,argv[j],-1), args);
     /* if no script name, use interpreter name */
-    if (i >= argc || main_symbol != NULL)
+    if (i >= argc || main_module != NULL)
       args = sexp_cons(ctx, tmp=sexp_c_string(ctx,argv[0],-1), args);
     load_init(i < argc || main_symbol != NULL);
     sexp_set_parameter(ctx, sexp_meta_env(ctx), sym=sexp_intern(ctx, sexp_argv_symbol, -1), args);

tests/run/lib/hello.sld

@@ -3,9 +3,9 @@
   (begin
     (define (main args)
       (write-string "Hello, ")
-      (write-string (if (pair? args) (car args) "world!"))
+      (write-string (if (pair? (cdr args)) (cadr args) "world!"))
       (newline))
     (define (bye args)
       (write-string "Goodbye, ")
-      (write-string (if (pair? args) (car args) "world!"))
+      (write-string (if (pair? (cdr args)) (cadr args) "world!"))
       (newline))))