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Re: [Linphone-developers] How to build linphone under Ubuntu

From: Ketan Tang
Subject: Re: [Linphone-developers] How to build linphone under Ubuntu
Date: Wed, 30 May 2012 13:49:44 +0800

Dear Jonathan,

Thank you very much for your kind reply. However after updating all related packages (speex, osip, eXosip, ffmpeg) to latest version using git clone, I still cannot build linphone. I got errors as follows.

in videoenc.c: CODEC_FLAG_H263P_UMV undeclared.
in videoenc.c: CODEC_FLAG_H263P_SLICE_STRUCT undeclared.
in videoenc.c: FF_I_TYPE undeclared.

I guess the problem is with ffmpeg (which includes libavcodec). However I've tried lower versions and they didn't work either.

What should I do now?

Arthur Tang

2012/5/29 Jonathan Rosser <address@hidden>
On 05/29/12 10:04, Ketan Tang wrote:
> Dear friends,
> I'm now trying to build linphone under Ubuntu. However I cannot find any
> instructions. There is only README file for macos, mingw and arm. Can
> some help me a bit? I'm really new in this...
> The things I tried but not worked:
> 1. I tried build linphone directly using "./, ./configure",
> then it stoped saying osip2 missing,

You are on the right track.

> 2. I downloaded libosip2-3.5.0, after ", configure, make, make
> install", everything went fine. However I still cannot build linphone,
> and using "dpkg -s libosip2" or "dpkg -s osip2" I got nothing returned,
> which means building and installing libosip2 didn't succeed.

I had to build osip and exosip version 3.6.0 in order to then build a
recent linphone on Ubuntu.

Get osip and exosip source from:


> 3. I tried to bypass this step by using
>       apt-cache search libosip2
>       sudo apt-get install libosip2-dev

You can't do this as there is not a sufficiently up to date version of
osip/exosip in the ubuntu package repository. You can check the version
that is available at

Hope this helps.

Linphone-developers mailing list

Best Regards,

Arthur Tang


Arthur Ketan Tang

Multimedia Technology Research Center

ECE Department, HKUST


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