diff --git a/src/makeBaseExt/top/configure/CONFIG_SITE b/src/makeBaseExt/top/configure/CONFIG_SITE
index 71bc002e0..4ef88cedf 100644
--- a/src/makeBaseExt/top/configure/CONFIG_SITE
+++ b/src/makeBaseExt/top/configure/CONFIG_SITE
@@ -15,3 +15,6 @@ CROSS_COMPILER_TARGET_ARCHS =
 # define INSTALL_LOCATION here
 #INSTALL_LOCATION=<fullpathname>
 
+# Extensions don't normally build shared libraries 
+SHARED_LIBRARIES = NO
+