Re: [jamboost] Stage targets for V2

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-11-12 05:09:13

Rene Rivera wrote:
> [2002-11-10] Vladimir Prus wrote:
> 
> 
>>Rene Rivera wrote:
>>Okay.. I seem to understand this better now, thanks. One more question on
> 
> topic:
> 
>>is there a way to hardcode the path to shared library in exe? I want it in
>>order to avoid setting LD_LIBRARY_PATH when debugging, when libraries live
>>in build directories.
> 
> 
> Yes, you can, and this is what I do in my projects for debug binaries also.
> In V1 I have this set for all my targets:
> 
> <gcc><linkflags>"-Wl,-rpath -Wl,."
> <gcc><linkflags>"-Wl,-rpath -Wl,$(GCC_STDLIB_DIRECTORY)"

Good. I think if we both need this feature, we can create a new feature for
it, something like <hardcode-dll-paths>?

>>>Yes, that would be a good way to get both uses. In fact it might be
>>
> usefull
> 
>>>to specify that for each source in the stage. Basically allowing to
>>
> create
> 
>>>symlinks in the stage to arbitrary other targets.
>>
>>Nice idea. We'd need a mechanism for specifying different processing for
>>different sources, though.
> 
> 
> Any ideas on how to do that? I'll think about it.

You see, now we have

exe a : a.cpp mylib/<optimizaton>off ;

but this specified which variant of "mylib" to select, while what we
want is different processing for different sources. Maybe we can
extend this mechanism. If <use-symlinks> is incidential property
(the one which is assumed to not affect build products) then

stage dist : mylib/<optimization>off/<use-symlink>yes ;

would select the same variant of "mylib" as

stage dist : mylib/<optimization>off ;

However, we can make <use-symlink> somehow travel with the generated
target, so that stage rule can take care of it. It's not trivial.

- Volodya