tests: avoid spurious failure with FreeBSD make

* tests/parallel-tests-extra-programs.test: FreeBSD make seems to
write (some) diagnostic messages on stdout instead than on stderr,
so now we also grep the stdout for the expected make diagnostic.

diff --git a/tests/parallel-tests-extra-programs.test b/tests/parallel-tests-extra-programs.test
index 4a18443..3802176 100755 (executable)
--- a/tests/parallel-tests-extra-programs.test
+++ b/tests/parallel-tests-extra-programs.test
@@ -137,8 +137,10 @@ grep '^PASS: baz\.test$' stdout
 # $(EXEEXT).
 grep '^PASS: foo\.bin' stdout
 grep '^PASS: bar\.bin' stdout
-# Expected error messages from make.
-$EGREP 'none\.(bin|o|c)' stderr
+# Expected error messages from make.  Some make implementations (e.g.,
+# FreeBSD make) seem to print the error on stdout instead, so check for
+# it there as well.
+$EGREP 'none\.(bin|o|c)' stderr stdout
 
 # What we check now:
 #  1. if we make the last EXTRA_PROGRAM buildable, the failed tests