--- old/build/pkgs/python3/spkg-install	2017-07-21 14:10:00.000000000 -0500
+++ new/build/pkgs/python3/spkg-install	2017-10-15 13:11:17.769261404 -0500
@@ -22,6 +22,9 @@
 
 cd src
 
+LDFLAGS="-lcrypt $LDFLAGS"		
+export LDFLAGS
+
 if [ "$SAGE_DEBUG" = "yes" ]; then
     echo "Building Python with pydebug"
     PYTHON_CONFIGURE="$PYTHON_CONFIGURE --with-pydebug"