configure.ac: Enable assert(3) by default.

[nmh] / test / show / test-show

diff --git a/test/show/test-show b/test/show/test-show
index 60a98c3..64859d2 100755 (executable)
--- a/test/show/test-show
+++ b/test/show/test-show
@@ -9,7 +9,7 @@ fi
 
 setup_test
 
-! show - >/dev/null 2>&1 # gcov
+check_exit '-eq 1' show -
 
 expected=$MH_TEST_DIR/$$.expected
 actual=$MH_TEST_DIR/$$.actual