Re: Debugging a problem library & LC_DYLD_INFO_ONLY

You need to get a version of libmine.dylib from your third party that is built with a deployment target of 10.5.

Shantonu

Sent from my MacBook

On Mar 8, 2010, at 7:59 AM, Eric Gorr wrote:

> So, I've got this library, when I include it in a default project under 10.5, I get the following in the console:
> 
> dyld: Library not loaded: @executable_path/../MacOS/libmine.dylib
> Referenced from: /Projects2/My.app/Contents/MacOS/My
> Reason: no suitable image found.  Did find:
>      /Projects2/My.app/Contents/MacOS/../MacOS/libmine.dylib: unknown required load command 0x80000022
>      /Projects2/My.app/Contents/MacOS/../MacOS/libmine.dylib: unknown required load command 0x80000022
> 
> The same is not true for a default project under 10.6 - that works.
> 
> I did not build the library...it was obtained from a third party.
> 
> I used otool -l to take a peek into the library and when I do this under 10.5, I see:
> 
> Load command 5
>    cmd ?(0x80000022) Unknown load command
> cmdsize 48
> 00517000 00000acc 00517acc 00000568 00518034 0001dd10 00535d44 00000340 
> 00536084 00096470 
> 
> When I do this under 10.6, I see:
> 
> Load command 5
>          cmd LC_DYLD_INFO_ONLY
>      cmdsize 48
>   rebase_off 5337088
>  rebase_size 2764
>     bind_off 5339852
>    bind_size 1384
> weak_bind_off 5341236
> weak_bind_size 122128
> lazy_bind_off 5463364
> lazy_bind_size 832
>   export_off 5464196
>  export_size 615536
> 
> Using lipo, I get this information about the file:
> 
> ~ $lipo -detailed_info /Projects2/My.app/Contents/MacOS/libmine.dylib 
> input file /Projects2/My.app/Contents/MacOS/libmine.dylib is not a fat file
> Non-fat file: /Projects2/My.app/Contents/MacOS/libmine.dylib is architecture: i386
> 
> 
> I did find one old thread about LC_DYLD_INFO_ONLY:
> 
> http://lists.apple.com/archives/xcode-users/2010/Jan/msg00339.html
> 
> but, I am not sure if I understood everything stated.
> 
> Can anyone provide some insight?
> 
> Thank you.
> 
> _______________________________________________
> MacOSX-dev mailing list
> [email protected]
> http://www.omnigroup.com/mailman/listinfo/macosx-dev