[Lazarus] sockets.pp(20, 5) Error: include file not found "osdefs.inc"

[FreeMan]

That's a configuration problem in your lazarus. Please ask for help on 
the fora or mailing lists.
Jonas Maebe (manager) wrote this that link.
is this problem from fpc or lazarus?

On 19.03.2015 23:24, FreeMan wrote:
> http://bugs.freepascal.org/view.php?id=27693
>
> /opt/freepascal/3.1.1/packages/rtl-extra/src/unix/sockets.pp
> In lazarus TLTCPComponent compileted and installed without error. when 
> try code complied I get this error and project not compile.

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