llvm dev - Oct 2011 - [LLVMdev] [cfe-dev] RFC: Upcoming Build System Changes

Hi Oskar,
> If having two build systems is a problem, just standardize on cmake.
Does cmake support cross-compilation? Can it cross-compile LLVM ?

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

Hi Anton,

Cmake definitely support cross-compilation. This is achieved by defining some
so-called 'toolchain' files. Doing this is not well documented in the
web documentation, as far as I know, but the cmake paper book describe it
extensively. Several reasonnable size projects here have used it successfully.

Regards,
--
Arnaud de Grandmaison

-----Original Message-----
From: cfe-dev-bounces at cs.uiuc.edu [mailto:cfe-dev-bounces at cs.uiuc.edu] On
Behalf Of Anton Korobeynikov
Sent: Friday, October 28, 2011 10:27 AM
To: Óscar Fuentes
Cc: cfe-dev at cs.uiuc.edu; llvmdev at cs.uiuc.edu
Subject: Re: [cfe-dev] RFC: Upcoming Build System Changes

Hi Oskar,
> If having two build systems is a problem, just standardize on cmake.
Does cmake support cross-compilation? Can it cross-compile LLVM ?

--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University
_______________________________________________
cfe-dev mailing list
cfe-dev at cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev

CONFIDENTIAL NOTICE: The contents of this message, including any attachments,
are confidential and are intended solely for the use of the person or entity to
whom the message was addressed. If you are not the intended recipient of this
message, please be advised that any dissemination, distribution, or use of the
contents of this message is strictly prohibited. If you received this message in
error, please notify the sender. Please also permanently delete all copies of
the original message and any attached documentation. Thank you.

Hello Anton.

Anton Korobeynikov <anton at korobeynikov.info> writes:
>> If having two build systems is a problem, just standardize on cmake.
> Does cmake support cross-compilation? Can it cross-compile LLVM ?
Yes: http://www.llvm.org/docs/CMake.html#cross

The main difference is that you use a configuration file instead of
passing arguments on the command line. Please note that the
configuration file is for a toolset, not for a project (i.e. you don't
need to create one every time you want to cross-compile a new project
from Debian to Windows with MinGW.)

> The main difference is that you use a configuration file instead of
> passing arguments on the command line. Please note that the
> configuration file is for a toolset, not for a project (i.e. you don't
> need to create one every time you want to cross-compile a new project
> from Debian to Windows with MinGW.)
Well, ok. How hard it will be to create something necessary for llvm?
E.g. when part of tools / libs should be built for build platform and
everything else - for host?

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University