--- old/build/pkgs/python2/spkg-install	2015-07-26 15:34:43.000000000 +0200
+++ new/build/pkgs/python2/spkg-install	2015-09-16 20:48:51.904555797 +0200
@@ -32,7 +32,7 @@
 done
 
 # We are setting LDFLAGS so that we pick up Sage's readline
-LDFLAGS="-L$SAGE_LOCAL/lib $LDFLAGS"
+LDFLAGS="-L$SAGE_LOCAL/lib -lcrypt $LDFLAGS"
 export LDFLAGS
 
 if [ "$SAGE_DEBUG" = "yes" ]; then