From 8737092e3406f9d4b792c11b186b11f2a1548a69 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.org.uk>
Date: Tue, 15 Nov 2011 19:32:26 +0100
Subject: Add _GNU_SOURCE to get M_PI as well

---
 libcrystfel/src/detector.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'libcrystfel/src/detector.c')

diff --git a/libcrystfel/src/detector.c b/libcrystfel/src/detector.c
index cf2cfbc9..12aaa162 100644
--- a/libcrystfel/src/detector.c
+++ b/libcrystfel/src/detector.c
@@ -12,6 +12,7 @@
 
 
 #define _ISOC99_SOURCE
+#define _GNU_SOURCE
 #include <stdlib.h>
 #include <math.h>
 #include <stdio.h>
-- 
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