On Thu, Apr 18, 2013 at 2:50 PM, Richard Shaw <[email protected]> wrote:
> On Thu, Apr 18, 2013 at 2:30 PM, Chris Testa <[email protected]> wrote:
>
>> One gocha I found when cross compiling for the ARM Cortex-A8 on the
>> AM335x Starter Kit:
>>
>> The binary generate_codebook should be built for and executed on the
>> build platform - not the target platform that will ultimately run FreeDV.
>> Those generated codebook c files are the ones to be compiled for the
>> target.
>>
>
> There may be a way to do this "automagically" but the simplest and most
> direct approach I can think of is to take advantage of the fact that cmake
> prefers out-of-source build and just build twice, the first time building
> for the host system, then building for the target system, but allowing the
> use of the codebook generator binary from the host system with a cmake
> option.
>
> Something like:
> $ svn co https://freetel.svn.sourceforge.net/svnroot/freetel/codec2-dev
> $ mkdir codec2-host codec2-arm
> $ cd codec2-host
> $ cmake ../codec2-dev
> $ make
> $ cd ../codec2-arm
> $ cmake -DGENERATE_CODEBOOK_BIN=../codec2-host/src/generate_codebook
> ../codec2-dev
> $ make
>
Forgot to spec out the toolchain file option "CMAKE_TOOLCHAIN_FILE" so
check out the cmake cross compiling wiki[1]...
Richard
[1] http://www.vtk.org/Wiki/CMake_Cross_Compiling
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