enable ctypes unit tests on all platforms. b=522118, r=bsmedberg

js/ctypes/tests/Makefile.in

@@ -66,7 +66,7 @@ xpctestdir = $(testxpcobjdir)/$(MODULE)/unit
 # install the .js.in from the tests srcdir, so remove it when we're done.
 libs:: unit/test_jsctypes.js.in
 	$(PYTHON) $(MOZILLA_DIR)/config/Preprocessor.py $(DEFINES) $(ACDEFINES) \
-	  $^ > $(xpctestdir)/test_jsctypes.js
+	  -DCTYPES_TEST_LIB=\"$(SHARED_LIBRARY)\" $^ > $(xpctestdir)/test_jsctypes.js
 	$(TEST_INSTALLER) $(SHARED_LIBRARY) $(xpctestdir)
 	$(RM) $(xpctestdir)/test_jsctypes.js.in
 

js/ctypes/tests/unit/test_jsctypes.js.in

@@ -43,6 +43,8 @@ Components.utils.import("resource://gre/modules/ctypes.jsm");
 const Cc = Components.classes;
 const Ci = Components.interfaces;
 
+#expand const CTYPES_TEST_LIB = __CTYPES_TEST_LIB__;
+
 function do_check_throws(f, type, stack)
 {
   if (!stack)
@@ -60,16 +62,7 @@ function do_check_throws(f, type, stack)
 
 function run_test()
 {
-#ifdef XP_WIN
-  var libfile = do_get_file("jsctypes-test.dll");
-#elifdef XP_MACOSX
-  var libfile = do_get_file("libjsctypes-test.dylib");
-#elifdef XP_UNIX
-  var libfile = do_get_file("libjsctypes-test.so");
-#else
-  // unsupported OS - don't run the test
-  return;
-#endif
+  var libfile = do_get_file(CTYPES_TEST_LIB);
 
   // open the library with an nsILocalFile
   var library = ctypes.open(libfile);