Re: [Chicken-hackers] [PATCH] Fix #1133

[Yaroslav Tsarko]

Sure. First, please take a look at the following CMake wiki page: 
http://www.cmake.org/Wiki/CMake_Cross_Compiling.

In addition to that many CMake commands already know how to properly 
work in cross-compilation mode (for example: find_library command 
http://www.cmake.org/cmake/help/v2.8.12/cmake.html#command:find_library).

In common scenario all you need to do is to set up a few CMake variables 
to specify your cross-compilation target and CMake will handle many 
things automatically.

As example (I used this to build CLucene library on my Ubuntu 12.04 
system for Windows):

cmake -D CMAKE_TOOLCHAIN_FILE=mingw-w64-toolchain.cmake -D 
CMAKE_INSTALL_PREFIX=<path> ..

where mentioned mingw-w64-toolchain.cmake file contains:

SET(CMAKE_SYSTEM_NAME Windows)
SET(GNU_HOST i686-w64-mingw32)
SET(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
SET(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
SET(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
SET(CMAKE_FIND_ROOT_PATH  <path-to-mingw32> )

On 03.07.2014 16:05, Felix Winkelmann wrote:
> From: Yaroslav Tsarko <address@hidden>
> Subject: Re: [Chicken-hackers] [PATCH] Fix #1133
> Date: Thu, 03 Jul 2014 12:14:10 +0400
>
> > Besides weird and clumsy syntax CMake has one great advantage over
> > herds of others so-called "build systems" (waf, scons, gyp ... <put
> > your name here>) - cross compilation, and being a packager, you should
> > be aware of that. CMake has indeed decent support of it. And this
> > point gives CMake 100 points ahead of others "build systems".
> Interesting. Can you point me to specifics? I find the cmake
> documentation somewhat opaque, but perhaps it's just the terminology
> that is alien to me. In other words, what makes cross-compilation
> in CMake easier than in, say, GNU make?
>
>
> felix

--
Thanks,
Yaroslav