Make the gc descriptor tests fail consistently if python is not found.

diff --git a/mono/tests/gc-descriptors/Makefile.am b/mono/tests/gc-descriptors/Makefile.am
old mode 100644 (file)
new mode 100755 (executable)
index 869850e..4daa22b
--- a/mono/tests/gc-descriptors/Makefile.am
+++ b/mono/tests/gc-descriptors/Makefile.am
@@ -14,3 +14,6 @@ descriptor-tests.cs : descriptor-tests-driver.cs descriptor-tests-prefix.cs gen-
        $(srcdir)/gen-descriptor-tests.py >descriptor-tests.cs
 
 EXTRA_DIST = descriptor-tests-driver.cs descriptor-tests-prefix.cs gen-descriptor-tests.py
+
+.DELETE_ON_ERROR:
+