From 63d14a96b62163ea1cb1b42a5af009ebb82a1e4d Mon Sep 17 00:00:00 2001
From: Chris Dyer <prguest11@taipan.cs>
Date: Sat, 18 Feb 2012 20:22:42 +0000
Subject: fix eigen option

---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index 026dad01..869f7cf9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,6 +46,13 @@ then
   AM_CONDITIONAL([HAVE_CMPH], true)
 fi
 
+AM_CONDITIONAL([HAVE_EIGEN], false)
+AC_ARG_WITH(eigen,
+            [AC_HELP_STRING([--with-eigen=PATH], [(optional) path to Eigen linear algebra library])],
+            [with_eigen=$withval],
+            [with_eigen=no]
+           )
+
 if test "x$with_eigen" != 'xno'
 then
   SAVE_CPPFLAGS="$CPPFLAGS"
-- 
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