Re: [V2] Choosing library names depending on the OS

From: hamletclaud (hamletclaud_at_[hidden])
Date: 2005-07-20 04:03:47

Dear Mike,

--- In jamboost_at_[hidden], Mike Glazer <mglazer_at_c...> wrote:
> Does:
> 
> if $(OS) = "LINUX"
> {
> lib required_system_library : : <name>greatlib ;
> }
> else if $(OS) = "MACOSX"
> {
> lib required_system_library : : <name>greatlib_xy ;
> }
> 
> Work? Bear in mind that I have declared a variable named $(OS) 
> earlier in my Jamfile you'll have to do the same (modules.peek works
for this).
> 
> I use a similar method in my jamfile but mine is used to exclude
> a library on certain platforms.
> 
> 

Thanks! I've immediately tried it out and, yes, it works perfectly if,
as you write, a suitable variable is defined, e. g. in
project-root.jam, e. g. OS = "MACOSX" ; 

> 
> hamletclaud wrote:
> 
> >Hi Pedro,
> >
> >--- In jamboost_at_[hidden], "Pedro Ferreira"
> ><pedro.ferreira_at_m...> wrote:
> > 
> >
> >>you can do something like:
> >>
> >>lib required_system_library : : <name>greatlib <os>LINUX ;
> >>lib required_system_library : : <name>greatlib_xy <os>MACOSX ;
> >>
> >>exe final_exe : source1.cpp required_system_library ;
> >> 
> >>
> >
> >Thanks for your help and the quick answer!
> >
> >Unfortunately, this approach doesn't seem to work. Under MacOSX bjam
> >gives the following error message:
> >
> >----------
> >[...]/boost-build/build/feature.jam:431: in
> >feature.validate-value-string from module feature
> >error: "LINUX" is not a known value of feature <os>
> >error: legal values: "MACOSX"
> >[...]
> >----------
> >
> >Under Linux the error message is the same, just LINUX and MACOSX are
> >exchanged. Obviously, <os> can only carry the value of the real host
> >OS --- which is somewhat strange.
> >
> >I use boost-build-2.0-m10.
> >
> >Any idea?
> >
> > 
> >
> >>----- Original Message ----- 
> >>From: "hamletclaud" <hamletclaud_at_y...>
> >>To: <jamboost_at_[hidden]>
> >>Sent: Tuesday, July 19, 2005 2:50 PM
> >>Subject: [jamboost] [V2] Choosing library names depending on the OS
> >>
> >>
> >> 
> >>
> >>>Hi!
> >>>
> >>>Relates to: Boost Build V2
> >>>
> >>>I have an executable which as one of its sources uses a system
> >>>library, so:
> >>>
> >>>------
> >>>lib required_system_library
> >>> :
> >>> : <name>greatlib
> >>>;
> >>>
> >>>exe final_exe :
> >>> source1.cpp
> >>>
> >>> required_system_library
> >>>;
> >>>--------
> >>>
> >>>However, the system library has different names under Linux and
> >>>Darwin. I would thus like to choose the library name (say, "greatlib"
> >>>for Linux, but "greatlib_xy" for Darwin) depending on the OS, much as
> >>>I can easily do for variants, optimization and other factors.
> >>>This must be trivial, but in my stupidity I can't find the
solution in
> >>>the documentation nor in the jam source.
> >>>
> >>>Many thanks in advance!
> >>>
> >>>Claudius
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> 
> >>>
> >
> >
> >
> >
> > 
> >Yahoo! Groups Links
> >
> >
> >
> > 
> >
> >
> >
> >
> > 
> >
> 
> 
> -- 
> _________________________________________ 
> / Mike Glazer Development Intern CDL \
> | Systems Ltd. Phone: [phone] ext. 256 |
> | e-mail: mglazer_at_c... Address: |
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