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math-compat: don't re-define _USE_MATH_DEFINES if already defined

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This avoids compiler warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=633886
This commit is contained in:
Vladimir Eremeev 2010-11-03 14:21:02 +00:00 committed by Tim-Philipp Müller
parent e250e9c5ba
commit b804d53320
1 changed files with 2 additions and 0 deletions
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2
gst/math-compat.h
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@ -23,7 +23,9 @@
/* This header is not included automatically via gst/gst.h, you need to
* include it explicitly if you need it. */
#ifndef _USE_MATH_DEFINES
#define _USE_MATH_DEFINES /* so MSVC defines M_PI etc. */
#endif
#include <math.h>
#include <glib.h>