Add a hint on the install guide to enable C extensions with pip.

diff --git a/doc/build/intro.rst b/doc/build/intro.rst
index 4a5bcb35fc81aa02c78c13883801e756ae8b8fce..1944b847182e7fe463397cc357dfce0ba7135187 100644 (file)
--- a/doc/build/intro.rst
+++ b/doc/build/intro.rst
@@ -113,6 +113,10 @@ This flag must be on the command line before the actual install or build command
 
     python setup.py --with-cextensions install
 
+Or with pip::
+
+    pip install --global-option='--with-cextensions' SQLAlchemy
+
 Installing on Python 3
 ----------------------------------