Add explicit --enable-bindings option to configure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42526 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Makefile b/test/Makefile
index a09f55d..d1e9fba 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -34,9 +34,7 @@
 IGNORE_TESTS += llvm2cpp.exp
 endif
 
-ifndef OCAMLC
-IGNORE_TESTS += ocaml.exp
-endif
+IGNORE_TESTS += $(filter-out $(BINDINGS_TO_BUILD:=.exp),$(ALL_BINDINGS:=.exp))
 
 ifdef IGNORE_TESTS
 RUNTESTFLAGS += --ignore "$(strip $(IGNORE_TESTS))"