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Mac Forum / Programming / Mac Programming / July 2005Link problem on Tiger(10.4.2)
Hi, I decided to go for Tiger and the installation went fine on my powerbook G4. But :( when I tried to recompiled my own c/c++ software I got the following error: ld: Undefined symbols: _rl_insert_text If I understood well this function belongs to a gnu readline library. I tried to look for it on tiger and I found : /usr/lib/libreadline.dylib (which is a system link to another system link libedit.dylib and finally points to libedit.2.dylib) :? So it's a dynamic library. But why it was working on 10.3.8 and not anymore. This is a basic library! Is someone met such similar problem? and how to link with such libraries(if it is really this one I should link) thanks. * posted via http://www.mymac.ws * please report abuse to http://xinbox.com/mymac > ld: Undefined symbols: > _rl_insert_text [quoted text clipped - 8 lines] > But why it was working on 10.3.8 and not anymore. This is a basic > library! If you use 'nm' to look at libedit.2.dylib you'll see that it only contains _rl_insert, not _rl_insert_text. If you need _rl_insert_text you'll have to install libreadline, like you did on Panther. patrick PS. I know nothing about libreadline or libedit... > If you use 'nm' to look at libedit.2.dylib you'll see that it only > contains _rl_insert, not _rl_insert_text. > If you need _rl_insert_text you'll have to install libreadline, like > you > did on Panther. > patrick > PS. I know nothing about libreadline or libedit... Thanks Patrick. I couldn't remember this so useful "nm" command! :-) Using nm, this _rl_insert_text routine is not in libreadline.dylib and it's normal in fact. _rl_insert is the standard one but one component of my project, not developped by myself uses a _rl_insert_text which refers to _rl_insert and builds it's own readline library. At least now I understand the failure.( On Panther I did not install any readline library) So what could be changed between Tiger and Panther is the way for checking the libraries during the link. Maybe on Panther my "libreadline.a" was checked first and did not use the Panther's readline library, so the component was happy because in my libreadline.a, the _rl_insert_text is included! That's one explaination. At the meantime I realized I could get rid of this readline library at least on the OS X platform! 8) Thanks a lot for your quick and helpful answer. :)) * posted via http://www.mymac.ws * please report abuse to http://xinbox.com/mymac > Hi, > I decided to go for Tiger and the installation went fine on my [quoted text clipped - 13 lines] > But why it was working on 10.3.8 and not anymore. This is a basic > library! Maybe, but it's not one that's included with Mac OS X. You must have installed GNU readline with 10.3.8, possibly using Fink or Darwin Ports. Either would help you get it back.  SignatureTom "Tom" Harrington Macaroni, Automated System Maintenance for Mac OS X. Version 2.0: Delocalize, Repair Permissions, lots more. See http://www.atomicbird.com/ |
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