[yoda-svn] yoda: Require Cython 0.23.5

[YODA Mercurial]

details:   https://yoda.hepforge.org/hg/yoda/rev/449a7ebeb361
branches:  release-1-6
changeset: 1299:449a7ebeb361
user:      David Grellscheid <david.grellscheid at durham.ac.uk>
date:      Tue Sep 27 17:51:25 2016 +0100
description:
Require Cython 0.23.5

diffs (30 lines):

--- a/configure.ac	Sun Sep 25 10:04:49 2016 +0100
+++ b/configure.ac	Tue Sep 27 17:51:25 2016 +0100
@@ -128,19 +128,25 @@
 
 ## Cython checks
 if test x$enable_pyext == xyes; then
-  AM_CHECK_CYTHON([0.20], [:], [:])
+  AM_CHECK_CYTHON([0.23.5], [:], [:])
   if test x$CYTHON_FOUND = xyes; then
     AS_VERSION_COMPARE([$CYTHON_VERSION], [0.24],
-          [AC_MSG_NOTICE([Cython >= 0.20 found: Python extension source can be rebuilt (for developers)])],
+          [AC_MSG_NOTICE([Cython >= 0.23.5 found: Python extension source can be rebuilt (for developers)])],
           [AC_MSG_NOTICE([
 **************************************************
 Cython 0.24.x does not work for non-tarball builds
   (https://github.com/cython/cython/issues/1465)
+
+You can install a personal copy of Cython with
+  pip install --user cython==0.23.5
 **************************************************]); CYTHON_FOUND="no"],
           [AC_MSG_NOTICE([
 **************************************************
 Cython 0.24.x does not work for non-tarball builds
   (https://github.com/cython/cython/issues/1465)
+
+You can install a personal copy of Cython with
+  pip install --user cython==0.23.5
 **************************************************]); CYTHON_FOUND="no"])
   fi