http://mx.gw.com/pipermail/file/2016/001961.html

From fe1b14d68fe47a0641606c142222d6b0fb9e05d9 Mon Sep 17 00:00:00 2001
From: Christos Zoulas <christos@zoulas.com>
Date: Mon, 18 Apr 2016 18:16:45 +0000
Subject: [PATCH] exit on error.

---
 tests/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Makefile.am b/tests/Makefile.am
index c2cb5ee..e55cdf4 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -13,7 +13,7 @@ issue311docx.testfile
 T = $(top_srcdir)/tests
 check-local:
 	MAGIC=$(top_builddir)/magic/magic ./test
-	for i in $T/*.testfile; do echo Running test: $$i; MAGIC=$(top_builddir)/magic/magic ./test $$i $${i%%.testfile}.result; done
+	set -e; for i in $T/*.testfile; do echo Running test: $$i; MAGIC=$(top_builddir)/magic/magic ./test $$i $${i%%.testfile}.result; done
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
-- 
2.7.4