v4l2allocator: O_CLOEXEC needs _GNU_SOURCE
Similar to 94f3d6fc / bz 709423 On some systems (E.G. uClibc and older Glibc versions), O_CLOEXEC is only defined when _GNU_SOURCE is specified, so do so. https://bugzilla.gnome.org/show_bug.cgi?id=736670
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@ -21,6 +21,10 @@
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#include "config.h"
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE /* O_CLOEXEC */
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#endif
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#include "ext/videodev2.h"
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#include "gstv4l2allocator.h"
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#include "v4l2_calls.h"
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