pb : want to link a library only in some configurations
klumpp at nerim.fr
Wed Jul 10 14:13:01 UTC 2002
I work on an application for the signal processing, in which a hierarchy
of several treatments can be executed. The available treatments depend
on the library installed. My problem is to link only the libraries
installed, and to compile the associated parts only when the libraries
Actually, what I do is to define or not strings ("#define
__WITH_LIB_xxx__") for each available libraries in a header file
"config.h". Then in the source files, this header file is included, and
when necessar I use the preprocessor command "#ifdef __WITH_LIB_xxx__"
to compil or not the parts related to each libraries. I must also
manually change the makefiles after the configure process, in order to
add the library paths and the include paths related to each libraries. I
used this solution at the beginning, but now I would like to process
this automatically, or something else that work.
The configure process can certainly automatically see if the libraries
are present or not and then append them or not to the linking process,
but I don't see how to know in my source files if the associated parts
should or not be compiled !
I already searched in some documentations how to do this, but I probably
don't have the good documentation ! Does anyone know where I can find
the solution, perhaps in the kdevelop documentation, or in a doc
available on the net ?
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