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

From: Mikko Vainio (mivainio_at_[hidden])
Date: 2008-07-02 01:35:39

Paul,

Indeed, cross-gcc nags about the -pthread option. I did not use the 
resulting libraries in multi-threaded code. In single-threaded they work.

I compiled it on linux-mingw on Fedora 8.

Rgds,
Mikko

Paul wrote:
> Hi Mikko,
> 
> I saw this post, it was useful to get me started in the right direction, 
> but it did not work because it wanted to use pthreads instead of 
> mthreads.  using the -d+2 flag to see what was happening ...
> 
>     "/home/paul/mingw/bin/mingw32-g++"  -ftemplate-depth-128 -O3 
> -finline-functions -Wno-inline -Wall -pthread  -DBOOST_ALL_NO_LIB=1 
> -DNDEBUG  -I"." -c -o 
> "bin.v2/libs/test/build/gcc-mingw-3.4.5/release/link-static/threading-multi/unit_test_log.o" 
> "libs/test/src/unit_test_log.cpp"
> 
> mingw32-g++: unrecognized option `-pthread'
> 
> 
> did you compile it on windows-mingw or linux-mingw ?
> 
> cheers
> Paul
> 
> 
> 
> 2008/6/30 Mikko Vainio <mivainio_at_[hidden] <mailto:mivainio_at_[hidden]>>:
> 
>     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> <http://os.name> ] != CYGWIN && [
>         os.name <http://os.name> <http://os.name> ] != NT change to
>         if [ os.name <http://os.name> <http://os.name> ] = CYGWIN && [
>         os.name <http://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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> 
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> 
>     -- 
>     :: Mikko Vainio <mikko.vainio_at_[hidden] <mailto: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
> 
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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