[FFmpeg-cvslog] doc: explain __STDC_CONSTANT_MACROS in C++

Luca Barbato git at videolan.org
Wed Sep 21 21:08:34 CEST 2011

ffmpeg | branch: release/0.8 | Luca Barbato <lu_zero at gentoo.org> | Sat Sep 10 10:23:50 2011 -0400| [b70a37f854df8b61be2055df352dfec40defce95] | committer: Michael Niedermayer

doc: explain __STDC_CONSTANT_MACROS in C++

In order to build C++ programs using libav you need
(cherry picked from commit d162994a81a311a8dd212a50a2d2ad2b088df97f)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b70a37f854df8b61be2055df352dfec40defce95

 doc/faq.texi |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/doc/faq.texi b/doc/faq.texi
index 225f139..daa4615 100644
--- a/doc/faq.texi
+++ b/doc/faq.texi
@@ -447,6 +447,11 @@ encompassing your FFmpeg includes using @code{extern "C"}.
 See @url{http://www.parashift.com/c++-faq-lite/mixing-c-and-cpp.html#faq-32.3}
+ at section I'm using libavutil from within my C++ application but the compiler complains about 'UINT64_C' was not declared in this scope
+Libav is a pure C project using C99 math features, in order to enable C++
+to use them you have to append -D__STDC_CONSTANT_MACROS to your CXXFLAGS
 @section I have a file in memory / a API different from *open/*read/ libc how do I use it with libavformat?
 You have to implement a URLProtocol, see @file{libavformat/file.c} in

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