Make ctypes unit tests work on OS/2. b=522118, r=dwitte

js/ctypes/tests/Makefile.in

@@ -45,6 +45,7 @@ include $(DEPTH)/config/autoconf.mk
 
 MODULE = jsctypes-test
 LIBRARY_NAME = jsctypes-test
+SHORT_LIBNAME = jscttest
 FORCE_SHARED_LIB = 1
 NO_DIST_INSTALL = 1
 

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

@@ -335,8 +335,10 @@ function run_load_system_library()
   var syslib = ctypes.open("libm.dylib");
 #elifdef XP_UNIX
   var syslib = ctypes.open("libm.so");
+#elifdef XP_OS2
+  var syslib = ctypes.open("libc063.dll");
 #else
-  // nothing run this test
+  do_throw("please add a system library for this test")
 #endif
   syslib.close();
   return true;