From 903d512dc9b8b334d39765ffda37db0d04258f69 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 26 Dec 2006 21:05:47 +0100
Subject: [PATCH] scarf.cc: make compatible with older versions of PolyLib

value_subtract and value_addmul are not available in older versions.
One day we should just require PolyLib 5.22.0
---
 configure.in | 14 ++++++++++++++
 scarf.cc     |  1 +
 2 files changed, 15 insertions(+)

diff --git a/configure.in b/configure.in
index 3242e55..9f40f6d 100644
--- a/configure.in
+++ b/configure.in
@@ -170,6 +170,20 @@ AC_EGREP_CPP(yes, [
      AC_DEFINE(value_subtract,value_substract,
 		[define to value_substract if missing from PolyLib])])
 
+AC_MSG_CHECKING([for value_addmul macro])
+AC_EGREP_CPP(yes, [
+    #include <polylib/polylibgmp.h>
+    #ifdef value_addmul
+    yes
+    #endif
+    ],[AC_MSG_RESULT(yes)],
+    [AC_MSG_RESULT(no)
+     AC_DEFINE([value_addmul(ref,val1,val2)],[do {Value _tmp; value_init(_tmp); dnl
+		value_multiply(_tmp,val1,val2); dnl
+		value_addto(ref,ref,_tmp); dnl
+		value_clear(_tmp); } while(0)],
+		[define if missing from PolyLib])])
+
 AC_ARG_WITH(piplib,
             [  --with-piplib=DIR       DIR Location of PIP],
             [ echo "Package piplib : $withval" && piplib_package=$withval],  
diff --git a/scarf.cc b/scarf.cc
index da2282f..69e970d 100644
--- a/scarf.cc
+++ b/scarf.cc
@@ -2,6 +2,7 @@
 #include <vector>
 #include <barvinok/barvinok.h>
 #include <barvinok/util.h>
+#include "config.h"
 
 using std::vector;
 
-- 
2.11.4.GIT