Re: [Boost-build] conditional properties

From: Matthew Herrmann (matthew.herrmann_at_[hidden])
Date: 2006-05-01 20:40:32

Hi,

For the record, I found a workaround for this:

The variant inheritance only copies the contained properties, there is no 
explicit relationship maintained between the two variants (a little 
misleading).

I used a <runtime-debugging>on:<define>MY_FLAG instead of 
<variant>debug:<define>MY_FLAG and it then behaved as I expected.

HTH,
Matthew Herrmann

On Monday 01 May 2006 15:26, Matthew Herrmann wrote:
> Hi All,
>
> I am seeing a problem where conditional properties defined on variants are
> not being activated when building against an inherited variant.
>
> In the code below, I expect both DEBUG_FLAG and DEBUG_FLAG_2 to be defined
> when compiling my_app. However, only DEBUG_FLAG is set.
>
> =============================================
>
> project myapp ;
>
> # define a variant suitable for testing position counts
> variant debug_child
>
>         : debug : <define>DEBUG_FLAG ;
>
> exe my_app
>
>     : # sources
>
>     [ glob *.cpp ]
>
>     : # requirements (debug/release, platform)
>
>     <variant>debug:<define>DEBUG_FLAG_2
>
>
>
>     ;
>
> $ bjam -d+2 debug_child
> gcc.compile.c++ bin/gcc/debug_child/test.o
>
>     "ccache" "gcc"   -Wall -ftemplate-depth-100 -O0 -fno-inline -g -fPIC
> -DDEBUG_FLAG   -c -o "bin/gcc/debug_child/test.o"  "test.cpp"
>