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-rw-r--r--src/QXmppRtpChannel.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/QXmppRtpChannel.cpp b/src/QXmppRtpChannel.cpp
index b1b02328..1ed9f00d 100644
--- a/src/QXmppRtpChannel.cpp
+++ b/src/QXmppRtpChannel.cpp
@@ -31,6 +31,10 @@
#include "QXmppJingleIq.h"
#include "QXmppRtpChannel.h"
+#ifndef M_PI
+#define M_PI 3.14159265358979323846264338327950288
+#endif
+
//#define QXMPP_DEBUG_RTP
#define SAMPLE_BYTES 2