Re: [Boost-users] bjam, mingw and cross-compiling

From: Mikko Vainio (mivainio_at_[hidden])
Date: 2008-06-30 10:44:32

Hi Paul,

Please see a previous post on this list:
http://lists.boost.org/boost-users/2008/04/35614.php

Rgds,
Mikko

Paul wrote:
> Hi,
> 
> I find the bjam documentation and configuration files very 
> frustrating... it seems to almost do what you want, but it doesn't 
> finish the job and tell you how to actually do it correctly.
> 
> I have been trying to cross-compile boost 1.35.0 for windows, on a linux 
> host.  The gcc.jam file mentions cross-compiling, but does not mention 
> how to get it done.
> 
> I almost got it to work with a user-config.jam:
> using gcc
>    : mingw
>    : /home/paul/mingw/bin/mingw32-g++
>    : <flavor>mingw32
>      <root>"/home/paul/mingwj/"
>    ;
> 
> 
> and then hacking away at the gcc.jam file, which checks the os.system 
> variable to decide how to link object files and use the -fPIC flag...
> 
> around line 703:
> if [ os.on-windows ]  change to...
> if [ modules.peek : UNIX ]   to force it to use -mthreads instead of 
> -pthreads
> 
> if [ os.name <http://os.name> ] != CYGWIN && [ os.name <http://os.name> 
> ] != NT change to
> if [ os.name <http://os.name> ] = CYGWIN && [ os.name <http://os.name> ] 
> != NT  to correct -fPIC
> 
> 
> it almost did the right thing, except for the extensions...  i assume if 
> i hack these lines, I'll get what i want...
> 
> type.set-generated-target-suffix STATIC_LIB : <toolset>gcc 
> <target-os>cygwin : a ;
> type.set-generated-target-suffix IMPORT_LIB : <toolset>gcc 
> <target-os>cygwin : dll.a ;
> type.set-generated-target-prefix IMPORT_LIB : <toolset>gcc 
> <target-os>cygwin : lib ;
> 
> 
> BUT then I'll have to fight to use the mingw32-ar and mingw32-windres 
> and other programs.
> 
> 
> Isn't there an easier way?  *please*
> 
> I'm giving up on 1.35 as I've just read about the serialization vector 
> bug, so I'll attempt to use 1.34.1
> 
> thanks,
> Paul
> 
> 
> 
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-- 
:: Mikko Vainio <mikko.vainio_at_[hidden]> tel + 358 2 215 4600
:: Structural Bioinformatics Laboratory
:: Department of Biochemistry and Pharmacy
:: Abo Akademi University, Tykistokatu 6A, FI-20520 Turku Finland