Re: [jamboost] Linker argument order on darwin

From: Ian Fasel (ianfasel_at_[hidden])
Date: 2004-10-01 13:20:13

Here's my patch to the darwin.jam file. I simply
moved $(OPTIONS) to the end of the linker command. 
Now I can use the following syntax:

exe mtest : main.cc 
: <cflags>"`Magick++-config --cppflags`" 
<linkflags>"`Magick++-config --ldflags --libs`" 
;

-Ian

--- Vladimir Prus <ghost_at_[hidden]> wrote:

> Hi Ian,
> 
> > exe mtest : main.cc : <cflags>"`Magick++-config
> > --cppflags`"
> > <linkflags>"`Magick++-config
> > --ldflags --libs`"
> > ;
> >
> > This works perfectly on linux using gcc, but
> doesn't
> > work on darwin. On darwin, the compilation of the
> > object file works, but I get these linker errors:
> > ld: Undefined symbols:
> > Magick::Image::display()
> > ... <snip> ...
> > g++ -s `Magick++-config --ldflags --libs` 
> -o
> > "bin/darwin/release/mtest"
> > "bin/darwin/release/main.o"
> 
> I suppose this is caused by the fact that some
> Magick++ libraries are static 
> on Darwin, or by a different linking model.
> 
> > I previously worked around this by hacking my copy
> of
> > darwin.jam, but I also don't have the expertise to
> do
> > this really right either, plus I'd rather not have
> to
> > distribute my custom darwin.jam file with my
> package.
> > Maybe someone can give me a better idea. I've
> attached
> > my Jamfile and my main.cc if you'd find that
> useful.
> 
> The idea to hack darwin.jam is the right one, ineed.
> Adding <linkflags> to the 
> end gives better control, and it's needed for gcc
> jam. If you send a patch 
> which moves $(OPTIONS) to the end of linker's
> command line for both link and 
> link.dll rules on darwin.jam, this would be very
> appreciated. 
> 
> - Volodya
> 
> 
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