node-sqlite mac wscript fix

diff --git a/wscript b/wscript
index 5ba9853..aad7bfd 100644
--- a/wscript
+++ b/wscript
@@ -13,8 +13,9 @@ def set_options(opt):
 def configure(conf):
   conf.check_tool("compiler_cxx")
   conf.check_tool("node_addon")
-  if not conf.check_cfg(package='sqlite3', args='--cflags --libs', uselib_store='SQLITE3'):
-    conf.fatal('Missing sqlite3');
+  if conf.check_cfg(package='sqlite3', args='--cflags --libs', uselib_store='SQLITE3'):
+    if not conf.check(lib="sqlite3", uselib_store="SQLITE3"):
+      conf.fatal('Missing sqlite3');
 #   conf.check_cfg(package='profiler', args='--cflags --libs', uselib_store='SQLITE3')
 #   conf.env.append_value('LIBPATH_PROFILER', '/usr/local/lib')
 #   conf.env.append_value('LIB_PROFILER', 'profiler')