[Libav-user] Beginner c++ compiling error

[mounir younes]

I gave the names without the linker prefix. I keep getting the "undefined
reference to" error and cannot solve it.

On Sat, Sep 24, 2011 at 10:43 PM, Alex Cohn <alexcohn at netvision.net.il>wrote:

> In your list of libs, "-l" is obviously doubled. Try to give the names to
> the linker without the prefix.
> On Sep 24, 2011 7:58 AM, "mounir younes" <mounir.younes at gmail.com> wrote:
> > Hello, I am new to ffmpeg and I am getting compiling errors while
> compiling
> > c++ code with ffmpeg libraries. It seems that a lot of people are getting
> > this with the new ffmpeg but I couldn't find a solution that I could
> > understand.
> >
> > I found a link that says that this
> >
> > CXXFLAGS=-D__STDC_CONSTANT_MACROS ./configure
> > (http://code.google.com/p/ffmpegsource/issues/detail?id=11)
> >
> >
> > solves it but unfortunately I tried it but nothing happened and I don't
> know
> > what to do ! I am adding the file headers which are being automatically
> > detected by netbeans so the libraries are already found. I tried adding
> > these -lavdevice -lavformat -lavcodec -lavutil -lswscale -lbz2 to the
> > linker as well
> >
> > (
> >
> http://libav-users.943685.n4.nabble.com/QT-and-FFmpeg-undefined-reference-to-av-free-and-more-td946811.html
> > )
> >
> > when adding them netbeans knew them and gave them proper library icons
> (thus
> > it recognized that these libraries are present otherwise it would've
> > replaced them with a white icon with question mark). But, when compiling
> I
> > get this
> >
> > /usr/bin/ld: cannot find -l-lavdevice
> > /usr/bin/ld: cannot find -l-lavformat
> > /usr/bin/ld: cannot find -l-lavcodec
> > /usr/bin/ld: cannot find -l-lavutil
> > /usr/bin/ld: cannot find -l-lswscale
> > /usr/bin/ld: cannot find -l-lbz2
> >
> > And this is really killing me. I have been trying to solve this for days.
> >
> > Thank you in advance.
>
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>
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