I cannot answer your question: I am a newcomer to Cmake (I have been
using it for less than 6 months) and on my build system I have 3.6, so I
never really looked at the previous versions.
Sorry,
Michele
Le 10/10/2016 à 11:30, Robert Bielik a écrit :
Thank you Michele,
This is exactly what I’m after. You specify cmake v3.6 docs ? Is it
only working from 3.6.x ? I have 3.5.2 on my build system.
Regards
/Robert
*From:*portolan [mailto:[email protected]]
*Sent:* den 10 oktober 2016 11:27
*To:* Robert Bielik <[email protected]>; Craig Scott
<[email protected]>
*Cc:* [email protected]
*Subject:* Re: [CMake] Crosscompilation woes
In my project I build on Linux i686 and I use a Toolchain file to
specify the ARM cross-compiler
https://cmake.org/cmake/help/v3.6/manual/cmake-toolchains.7.html
The nice thing is that if you mark some files as "generated" CMAKE
will automatically use the build rather than the target toolchains.
For instance, I have a Flex/Byson compiler that is generated locally
on i686 , but then compiled for ARM.
Regards,
Michele
Le 10/10/2016 à 11:10, Robert Bielik a écrit :
Thanks Craig,
Your solution will work for me I think.
Regards
/R
*From:*Craig Scott [mailto:[email protected]]
*Sent:* den 10 oktober 2016 10:47
*To:* Robert Bielik <[email protected]>
<mailto:[email protected]>
*Cc:* [email protected] <mailto:[email protected]>
*Subject:* Re: [CMake] Crosscompilation woes
Here's one possible solution (not perfect, but has been working in
production for us for a while now for a similar scenario to what
you describe):
http://stackoverflow.com/q/36084785/1938798
An alternative is a superbuild arrangement which would require a
top level project to drive two sub-builds brought in via
ExternalProject
<https://cmake.org/cmake/help/latest/module/ExternalProject.html>,
one for the host and the other for arm. This is both better and
worse, depending on your point of view, so you may need to do some
research/experimenting to see which is a better fit for your
situation.
On Mon, Oct 10, 2016 at 7:29 PM, Robert Bielik
<[email protected] <mailto:[email protected]>> wrote:
Hi all,
I am crosscompiling a project for arm (on linux i686), and use
codegeneration tools within the project (together with
add_custom_command). Of course, this will fail, since the
tools are compiled for arm also and thus won't execute on my
host system. So the tools need to be compiled for i686 whilst
the rest for arm. I'm sure this can be handled by CMake
although haven't done it before so would appreciate pointers :)
Regards
/Robert
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