Install handler in CALL-TERMINALLY so scsh with exit with status 1 in case of an error.

scsh/scsh-package.scm

@@ -232,6 +232,7 @@
 	general-tables
 	simple-syntax
 	exit-hooks
+        display-conditions
 
 	scsh-endian)  
   (for-syntax (open scsh-syntax-helpers scheme))

scsh/scsh.scm

@@ -9,11 +9,16 @@
 (define (call-terminally thunk)
   (with-continuation
    null-continuation
+   (lambda ()
+     (with-handler 
+      (lambda (c more)
+        (display-condition c (current-error-port))
+        (exit 1))
      (lambda ()
        (dynamic-wind
         (lambda () (values))
         thunk
-      (lambda () (exit 0))))))
+        (lambda () (exit 0))))))))
 
 ;; from shift-reset.scm:
 (define null-continuation #f)