From ee4bbdf8f7fd15733c4fa02737bf485574dce231 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@gnu.org>
Date: Wed, 1 Jul 2009 16:39:52 -0700
Subject: [PATCH] piechart: Use definition of M_PI from GSL.

The GSL header <gsl/gsl_math.h> makes sure that the standard BSD
mathematical constants are defined, so we don't have to do it ourselves.
---
 src/output/charts/piechart.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/output/charts/piechart.c b/src/output/charts/piechart.c
index 4eeb10ca..edb83ddb 100644
--- a/src/output/charts/piechart.c
+++ b/src/output/charts/piechart.c
@@ -19,6 +19,7 @@
 
 #include <float.h>
 #include <assert.h>
+#include <gsl/gsl_math.h>
 #include <math.h>
 #include <stdio.h>
 
@@ -32,14 +33,6 @@
 
 #include "minmax.h"
 
-
-/* Pie charts of course need to know Pi :) */
-#ifndef M_PI
-#define M_PI ( 22.0 / 7.0 )
-#endif
-
-
-
 /* Draw a single slice of the pie */
 static void
 draw_segment(struct chart *ch,
-- 
2.30.2