Date: Thu, 17 Sep 2009 21:24:09 -0400 From: "Jason J. Hellenthal" <jasonh@DataIX.net> To: Gerald Pfeifer <gerald@pfeifer.com> Cc: ports@freebsd.org, Loren James Rittle <rittle@labs.mot.com> Subject: Re: Need to use some library path before /usr/lib Message-ID: <alpine.BSF.2.00.0909172117140.1520@qvzrafvba.5c.ybpny> In-Reply-To: <alpine.LSU.1.99.0909171832060.15831@acrux.dbai.tuwien.ac.at> References: <alpine.LSU.1.99.0909171832060.15831@acrux.dbai.tuwien.ac.at>
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On Thu, 17 Sep 2009 12:45 -0000, gerald wrote: > Building some (Fortran) applications with lang/gcc44 it turns out we get > weird failures upon startup which look like: > > /libexec/ld-elf.so.1: /usr/lib/libstdc++.so.6: version GLIBCXX_3.4.11 > required by ./gendoc not found > > What is happening here is that lang/gcc44 lays down > /usr/local/lib/gcc44/libstdc++.so.6 > and puts /usr/local/lib/gcc44 into USE_LDCONFIG. Alas the system then > finds and uses /usr/lib/libstdc++.so.6 from our aging system compiler > instead. > > Now, both libraries share the same name/version because these libraries, > like also (and especially) libgcc_s.so.1 because new versions are drop > ins for older ones, but not the other way round. > > How can we address this? > > Updating the old, unsupported by upstream system compiler has > been ruled out historically, and does not look like an option (and also > would not help older versions of FreeBSD). > > Use -rpath, somehow, by changing the configuration of the > lang/gcc44 ports? That sucks in that it will break updates to newer > versions of GCC. > > Set up ldconfig such that /usr/local/lib/gcc44 comes before > /usr/lib? > > Anything else? Any pointers on how to best implement an ordering of > search paths for ldconfig (or rpath, if that is the best of options)? > > Gerald > > Would it be possible to just libmap.conf gcc44 and friends just for that lib and the programs it builds. I know this is not such a great solution but for the mean time it may be a relevant answer. -- Jason J. Hellenthal http://www.DataIX.net/ jasonh@DataIX.net 0x691411AC - (2^(N-1))
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