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List:       fink-users
Subject:    Re: [Fink-users] Help with shared libraries
From:       Andrea Riciputi <mr.rech.list () gmail ! com>
Date:       2006-11-21 10:19:44
Message-ID: 9F577D33-A9FD-4EBC-9CCE-D6C93F09DE6E () gmail ! com
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I wish to thank both of you Peter and Bejamin for the usefull  
suggestions. Nevertheless I find the ld(1) and libtool(1) man pages a  
little bit too terse to be usefull for a novice like. Something more  
explanatory with some examples would be better. So I was considering  
to write down a little note, maybe a wiki,a and I was wondering if it  
could be apprecieted by the Fink community or not...

Cheers,
  Andrea

On 21 Nov 2006, at 00:19, Peter O'Gorman wrote:

>
> On Nov 21, 2006, at 4:58 AM, Andrea Riciputi wrote:
>
>> Thanks a lot, as you said now it works correctly. Reading the libtool
>> man page I didn't realize that the name should contain the full path.
>>
>> By the way, while creating the static library I get the following
>> warnings:
>>
>> /usr/bin/ranlib ./common/libGammu.a
>> /usr/bin/ranlib: file: ./common/libGammu.a(affix.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(bluez.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(blue_w32.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(bluetoth.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(ser_djg.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(irda.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(gnapbus.o) has no symbols
>> /usr/bin/ranlib: file: ./common/libGammu.a(nfuncold.o) has no symbols
>
> The library authors have a system that compiles source files which  
> don't contain any code. This is not too uncommon, e.g.:
> #ifndef HAVE_SNPRINTF
> <local snprintf function>
> #endif
> would produce an object file with no symbols on Mac OS X (and most  
> other OSes).
>
>>
>>
>> I'd really appreciate if anyone could tell me where (on the Net) I
>> can find some documentation about building shared and static  
>> libraries.
>
> On Mac OS X? The ld(1) manpage and the libtool(1) manpage that  
> you've been reading, as well as the documentation of http:// 
> developer.apple.com. You might want to look at the dyld(1) manpage  
> also. Note that Mac OS X has recently acquired a second linker ld64  
> that does not have all the options available for ld, these are  
> noted in the manpage.
>
> Peter
>
>
>


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