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Re: Porting from Linux, plug-ins that depend on other plug-ins

You need to use the -dylib_file linker option, as documented in the ld(1)
man page. This will provide an alternate physical path for an install
name while ld is resolving dependencies recursively.

Shantonu

On May 4, 2004, at 12:49 PM, Geoffrey Schmit wrote:

On 03/05/2004 at 11:03 AM, email@hidden wrote:

Doing this I noticed that when I link one of my .dylib files I have
to string out every single other library name they reference in order
to avoid undefined references. The Linux linker only seems to
require you to list the top-level dependencies.

...

When I build each library I setup the -o to be the full pathname of
where the library is to be loaded from, so the install names of each
library should have the info the linker needs to find them.

Is there any way to make this process a bit simpler so that all the
indirect references don't need to be listed?

I ran into what may be a similar situation yesterday, but my experience
was slightly different. Regardless, it may help.

I was getting warnings that ld couldn't open the indirectly referenced
dynamic library followed by undefined symbols errors. My problem,
however, was that the indirectly referenced dynamic library was not
installed. These dynamic libraries are built in a difference location
than where they are installed. When they are linked, the -install_name
option is used to specify where they will be installed. If I installed
the dynamic libraries, ld would find the indirectly reference dynamic
library and successful complete the link operation. I did not need to
explicitly specify the indirectly referenced dynamic library. I'm
working on Mac OS X 10.3.3 which may make a difference.

I'm still trying to find a way to successfully link without having to
install the indirectly referenced dynamic libraries first....

BTW, I would be wary of building everything with the -flat_namespace
option since you may run into multiple-symbol-definition problems.

geoff
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References: 
 >Re: Porting from Linux, plug-ins that depend on other plug-ins (From: Geoffrey Schmit <email@hidden>)



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