Hmm, only python2.x is installed, not plain python.  Did that change recently?
diff --git a/Misc/build.sh b/Misc/build.sh
index 938ba94..ff46bba 100755
--- a/Misc/build.sh
+++ b/Misc/build.sh
@@ -161,6 +161,10 @@
             make install >& build/$F
             update_status "Installing" "$F" $start
 
+            if [ ! -x $PYTHON ]; then
+                ln -s ${PYTHON}2.* $PYTHON
+            fi
+
             ## make and run basic tests
             F=make-test.out
             start=`current_time`