Ákos Maróy wrote:

Hi,

I'm trying to compile boost into 32 bit libraries on a 64 bit Linux box. with gcc, with would simply mean to add the flag -m32 to gcc.

but I can't seem to make bjam do this.

I've tried a number of approaches:

- export and set the environment variables CFLAGS, CXXFLAGS and LDFLAGS to -m32

These have no effect.

- set the following in tools/build/v2/user-config.jam:

cflags=-m32 cxxflags=-m32 linkflags=-m32

These have no effect either, and no documentation say anything like this should work.

- set the following in tools/build/v2/user-config.jam:

using gcc : 4.1.2 : g++-4.1.2 : -m32 ;

(based on the documentation found at

http://beta.boost.org/doc/tools/build/doc/html/bbv2/reference/tools.html#bbv...

)

That's not what the documentation say. It says: The following options can be provided, using <option-name>option-value syntax: So, you need: using gcc : 4.1.2 : g++-4.1.2 : <compileflags>-m32 <linkflags>-m32 ; You have failed to say what version of Boost you are using. If 1.38 then you should not need any of this, and just do: bjam architecture=x86 address-model=32 - Volodya