From 903b6d2c6d9cff921f624d1284bea908144a7c1c Mon Sep 17 00:00:00 2001
From: Arnaud Gardelein <arnaud@oscopy.org>
Date: Sat, 16 Feb 2013 18:01:18 +0100
Subject: [PATCH] Check for numpy in configure.ac

---
 configure.ac |  1 +
 m4/numpy.m4  | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 m4/numpy.m4

diff --git a/configure.ac b/configure.ac
index ffe02c6..26afd56 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,6 +62,7 @@ AM_PATH_PYTHON([2.5])
 
 AM_PATH_IPYTHON([0.13])
 AM_PATH_MATPLOTLIB([1.1])
+AM_PATH_NUMPY([1.6])
 
 #####################################################################
 # Check for libraries that use pkg-config
diff --git a/m4/numpy.m4 b/m4/numpy.m4
new file mode 100644
index 0000000..418a368
--- /dev/null
+++ b/m4/numpy.m4
@@ -0,0 +1,50 @@
+## ipython.m4 - Check for IPython version on a system. -*-Autoconf-*-
+## Copyright (C) 2013 Arnaud Gardelein.
+## Author: Arnaud Gardelein <arnaud@oscopy.org
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+##
+## As a special exception to the GNU General Public License, if you
+## distribute this file as part of a program that contains a
+## configuration script generated by Autoconf, you may include it under
+## the same distribution terms that you use for the rest of that program.
+
+# AM_PATH_NUMPY([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------------
+# Adds support for distributing Numpy modules and packages.
+# Call AM_PATH_IPYTHON before using it
+#
+# If the MINIMUM-VERSION argument is passed, AM_PATH_NUMPY will
+# cause an error if the version of IPYTHON installed on the system
+# doesn't meet the requirement.  MINIMUM-VERSION should consist of
+# numbers and dots only.
+
+AC_DEFUN([AM_PATH_NUMPY],
+ [
+  AC_CACHE_CHECK([for Numpy version], [am_cv_numpy_version],
+    [am_cv_numpy_version=`$IPYTHON -c "import numpy,sys; sys.stdout.write(numpy.version.version)"`])
+  AC_SUBST([NUMPY_VERSION], [$am_cv_numpy_version])
+  AM_NUMPY_CHECK_VERSION([$IPYTHON], [$1], [$2], [m4_default([$3], [AC_MSG_ERROR([Numpy version > $1 needed])])])
+])
+
+# AM_NUMPY_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ---------------------------------------------------------------------------
+# Run ACTION-IF-TRUE if the IPYTHON interpreter PROG has version >= VERSION.
+# Run ACTION-IF-FALSE otherwise.
+
+AC_DEFUN([AM_NUMPY_CHECK_VERSION],
+ [prog="import sys, numpy;minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]];ver = list(map(int, numpy.version.version[[0:3]].split('.'))) + [[0, 0, 0]];minverhex = sum([[minver[i]<<((4-i)*8) for i in range(0, 4)]]);verhex = sum([[ver[i]<<((4-i)*8) for i in range(0, 4)]]);sys.stdout.write('1' if verhex < minverhex else '0');"
+  AS_IF([AM_RUN_LOG_IPYTHON([$1 -c "$prog"])], [$3], [$4])])
+
-- 
2.11.4.GIT