[Coin-discuss] Building Coin on multiple platforms

[Laszlo Ladanyi]

Hi Kish,

Do not use trunk, unless oyu *really* need some feature from it... That's the
development version (actually, branches/devel is an even more developing
version :-). You should use the latest stable version. On the trac page click
on browse source and see which is the latest in the stable directory.

If there is a bugfix that made it into trunk, but is not yet in stable, then
complain loudly. New features in trunk will get moved to stable as the project
manager's time permit...

--Laci

On Fri, 10 Nov 2006, Kish Shen wrote:

> Hi,
> 
> I am building Cbc (from the trunk branch, checked out 2 days ago) for multiple platforms
> on the same shared file space. I have done this successfully in Aug (with the devel branch),
> but am now running into a problem.
> 
> I am building for the following:
> 
> * Linux, running on x86 
> * SunOS5, running on Sparc
> * Windows, running on x86, by cross compiling on Linux with mingw
> 
> Up to now, I have been using --exec-prefix option in configure to put the platform dependent
> stuff into different directories, as follows:
> 
>   ./configure --exec-prefix=$HOME/<COIN>/$ARCH  --enable-static --without-asldir
> 
> (for the cross-compile, I also need to specify --build and --host options, plus setting CONFIG_SITE
> environment variable)
> 
> The problem I ran into:
> 
> 1) I first build the Linux version of Cbc, and after this I was able to compile my own code 
> successfully using Coin/Cbc.
> 
> 2) I then build the Windows version of Cbc (on a different process).  When I now try to
> compile the same code as in 1), I get an error:
> 
> g++ -DCOIN -DCOIN_USE_CLP -I. -I../include/i386_linux -I../sepia/include -I- -I/vol/Eclipse/thirdparty/gmp4.1/include -I/vol/Eclipse/thirdparty/tcltk8.4/include -I/usr/X11R6/include  -O2 -I/homes/kish/Coin-Cbc20061108/include -c coinplex.cpp
> In file included from /homes/kish/Coin-Cbc20061108/include/CoinMessageHandler.hpp:15,
>                  from /homes/kish/Coin-Cbc20061108/include/OsiSolverInterface.hpp:9,
>                  from coinplex.cpp:40:
> /homes/kish/Coin-Cbc20061108/include/CoinFinite.hpp: In function `bool 
>    CoinIsnan(double)':
> /homes/kish/Coin-Cbc20061108/include/CoinFinite.hpp:90: error: `_isnan' 
>    undeclared (first use this function)
> /homes/kish/Coin-Cbc20061108/include/CoinFinite.hpp:90: error: (Each undeclared 
>    identifier is reported only once for each function it appears in.)
> make: *** [i386_linux/seosiclpcbc.so] Error 1
> 
> I ran the same command to compile the code, on the same process, in the two cases.
> The Linux and the Windows builds are ran on other processes.
> 
> It seems that the Windows build have made changes to the include directory, which is in
> <COIN>/include, and is shared by all the platforms. 
> 
> I am now working around this by adding the --includedir option in configure so that the
> include files are also placed in platform specific directories. This seems to work. However,
> I didn't expect the include files to be platform dependent, and as there are 144 files in the
> include directories, I am not sure how I can make a comparison between the different 
> include directories to see what the differences are.
> 
> Does any one know if I am doing something wrong to cause this problem, or if the include
> files are expected to be platform specific? 
> 
> Thanks in advance for any information,
> 
> Kish Shen
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