Re: [Boost-users] boost.build : need help/bug specifying struct-alignment ?

From: Seb Martel (smartel_at_[hidden])
Date: 2005-06-16 15:20:37

Seb Martel wrote:
> Hi,
> 
> I am trying to build boost.threads 1.32 statically with struct alignment 
> set to 1.
> 
> I dug up from the documentation that this should do the trick:
> 
> bjam -sTOOLS=vc-7_1 "-sBUILD=debug <struct-alignment>1" -a -d+2
> 
> however, I don't see the alignment switch '/Zp1' on the command line  :
> 
> 
>      "cl"  /Zm800 -nologo /EHsc -c  -DBOOST_THREAD_LIB_NAME=boost_thread 
> -DBOOST_THREAD_BUILD_LIB=1  /Z7 /Od /Ob0 /EHsc /GR /MDd /Op  Zc:forScope 
> /Zc:wchar_t  -I"..\..\..\bin\boost\libs\thread\build"  -I"C:\Program 
> Files\Microsoft Visual Studio .NET 2003\VC7\include"  I"G:\boost_1_32_0" 
>  
> -Fo"..\..\..\bin\boost\libs\thread\build\libboost_thread.lib\vc-7_1\debug\threading-multi\tss.obj" 
> -Tp"..\..\..\libs\thread\build\..\src\tss.cpp"
> 
> Is there something I am missing ?
> 
> -seb

I am getting in the habit of answering to myself :

Here is a patch to msvc-tools.jam that implements support for
feature struct-alignment, as documented in features.jam

http://boost.org/tools/build/v1/features.jam

G:\boost_1_32_0\tools\build\v1> diff orig.jam msvc-tools.jam
81a82,87
 > flags msvc CFLAGS <struct-alignment>1 : /Zp1 ;
 > flags msvc CFLAGS <struct-alignment>2 : /Zp2 ;
 > flags msvc CFLAGS <struct-alignment>4 : /Zp4 ;
 > flags msvc CFLAGS <struct-alignment>8 : /Zp8 ;
 > flags msvc CFLAGS <struct-alignment>16 : /Zp16 ;
 > flags msvc CFLAGS <struct-alignment>auto :  ;
 >

Is there a better way to do this ?

-seb