From: Adam Dickmeiss <adam@indexdata.dk>
Date: Mon, 22 Oct 2012 08:37:38 +0000 (+0200)
Subject: Define log2(x) on Windows
X-Git-Tag: v1.6.24~25
X-Git-Url: http://sru.miketaylor.org.uk/?a=commitdiff_plain;h=63466e474f690a04fe0ebdaaac87914768977757;p=pazpar2-moved-to-github.git

Define log2(x) on Windows

This is because log2 is not defined by math.h on Windows.
---

diff --git a/src/relevance.c b/src/relevance.c
index 9766a5b..d22598d 100644
--- a/src/relevance.c
+++ b/src/relevance.c
@@ -28,6 +28,10 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "relevance.h"
 #include "session.h"
 
+#ifdef WIN32
+#define log2(x) (log(x)/log(2))
+#endif
+
 struct relevance
 {
     int *doc_frequency_vec;