Comments on: undefined reference to “function name” http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/ a cosmological pedestrian Tue, 22 Jun 2010 20:18:02 +0200 hourly 1 http://wordpress.org/?v=3.0 By: GlaDiaC http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/comment-page-1/#comment-18406 GlaDiaC Tue, 06 Oct 2009 06:35:00 +0000 http://blog.cynapses.org/?p=118#comment-18406 It should work too. I think you have to test it or compile it without --as-needed. It would be better to fix it. I think this is a design error. It should work too. I think you have to test it or compile it without –as-needed. It would be better to fix it. I think this is a design error.

]]> By: PI http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/comment-page-1/#comment-18404 PI Mon, 05 Oct 2009 23:27:00 +0000 http://blog.cynapses.org/?p=118#comment-18404 What to do if libfoo.so provides foo() but needs bar() and libbar.so provides bar() but needs foo()? I have seen such pathetic set of dependencies in the past! What to do if libfoo.so provides foo() but needs bar() and libbar.so provides bar() but needs foo()? I have seen such pathetic set of dependencies in the past!

]]> By: RedDwarf http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/comment-page-1/#comment-17676 RedDwarf Tue, 25 Aug 2009 17:23:15 +0000 http://blog.cynapses.org/?p=118#comment-17676 When the change was announced by coolo at opensuse-factory ML he linked to the docs from Gentoo that already have a section "Importance of linking order" (http://www.gentoo.org/proj/en/qa/asneeded.xml#doc_chap2) Also, see "-lnamespec" in ld man, it clearly specified that the linking order is important. If upstream fails to set the correct order it's a bug on their part, report it!! For Nikanth's case... I think you can just use -lfoo -lbar -lfoo, but -lnamepec suggests the use of "-(". When the change was announced by coolo at opensuse-factory ML he linked to the docs from Gentoo that already have a section “Importance of linking order” (http://www.gentoo.org/proj/en/qa/asneeded.xml#doc_chap2)

Also, see “-lnamespec” in ld man, it clearly specified that the linking order is important. If upstream fails to set the correct order it’s a bug on their part, report it!!
For Nikanth’s case… I think you can just use -lfoo -lbar -lfoo, but -lnamepec suggests the use of “-(“.

]]> By: GlaDiaC http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/comment-page-1/#comment-17667 GlaDiaC Tue, 25 Aug 2009 07:23:59 +0000 http://blog.cynapses.org/?p=118#comment-17667 Then don't compile it with --as-needed :) In the build service you can export SUSE_ASNEEDED=0. Then don’t compile it with –as-needed :) In the build service you can export SUSE_ASNEEDED=0.

]]> By: Nikanth http://blog.cynapses.org/2009/08/24/undefined-reference-to-function/comment-page-1/#comment-17660 Nikanth Tue, 25 Aug 2009 03:15:40 +0000 http://blog.cynapses.org/?p=118#comment-17660 What to do if libfoo.so provides foo() but needs bar() and libbar.so provides bar() but needs foo()? I have seen such pathetic set of dependencies in the past! What to do if libfoo.so provides foo() but needs bar() and libbar.so provides bar() but needs foo()? I have seen such pathetic set of dependencies in the past!

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