Update warning for missing C compiler on macOS

diff --git a/setup.py b/setup.py
index 2bfa07578c1840a66e4d382f1945dee480159b66..be3e3d1b0820df1a690f978daf50d47f30c0560a 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -68,10 +68,10 @@ Fedora users should issue the following command:
 
     $ sudo dnf install gcc python-devel
 
-If you are seeing this message on OSX please read the documentation
-here:
+MacOS users should run:
+
+    $ xcode-select --install
 
-http://api.mongodb.org/python/current/installation.html#osx
 ********************************************************************
 """