Prevent race conditions

Since all current ODBC test cases use the same DSN, there may be
conflicts when running tests in parallel.  We prevent this by adding a
CONFLICTS marker which might be unnecessarily general, but get's the
job done, and still can be refined later.

diff --git a/ext/odbc/tests/CONFLICTS b/ext/odbc/tests/CONFLICTS
new file mode 100644 (file)
index 0000000..a3722b5
--- /dev/null
+++ b/ext/odbc/tests/CONFLICTS
@@ -0,0 +1 @@
+odbc