On 12 April 2012 19:34, Alexander Hansen <alexanderk.han...@gmail.com> wrote: > On 4/12/12 8:24 AM, Edward d'Auvergne wrote: >> >> Hi, >> >> I am the lead developer of the project relax >> (http://pdb.finkproject.org/pdb/package.php/relax-py27, >> http://www.nmr-relax.com) and am having a problem installing the >> xmgrace software (http://pdb.finkproject.org/pdb/package.php/grace). >> The Xmgrace graphing software is used by relax to display certain >> results. The installation of relax pulled in gcc-4.6, as relax >> requires wxPython, which requires wxGTK, etc. The problem is that >> xmgrace depends on fftw-shlibs which in turn depend on gcc-4.4! So >> this is an indirect dependency clash. There is no need to install >> gcc-4.4 on the system to compile fftw-shlibs when gcc-4.6 is present. >> But installing gcc-4.4 removes openmpi-dev which is required by mpi4py >> which itself is a relax dependency. Why does fink not detect this and >> use the perfectly working gcc-4.6? > > Because we don't work by detection. We work by prescription because we want > packages to build the same way for everybody regardless of what they have > installed.
Should all the info files in the 10.4 tree then be updated to gcc-4.6 to avoid dependency tree clashes? Anyway, if I have any other gcc version problems, I'll just post here. >> Why does the fftw-shlibs info file >> >> (http://fink.cvs.sourceforge.net/fink/dists/10.4/stable/main/finkinfo/sci/fftw.info?view=markup) >> say that gcc44 is a dependency and not just specify a generic gcc >> version? > > Because that doesn't always work. It is often the case that libraries built > with gcc4N in turn link to libraries from the particular gcc4N with which > they were built, so the general assumption people make when doing packages > that use gcc4N is that they must carry a dependency on gcc4N-shlibs. That > appears not to be the case here, however. So a fink installation tree with everything built using gcc-4.5 should continue to be built against gcc-4.5 rather than the 4.4 or 4.6 specified in the info file of one of the packages on a remote branch of the dependency tree. Can the info file not have 'gcc4' or 'gcc4N' rather than gcc46? This would make it future proof once the new gcc-4.7 is pulled into fink and a few info files are updated to this version. Is the gcc dependency needed at all in the info file? > In any case, the -shlibs packages (containing the libraries) for gcc44 and > gcc46 _don't_ clash. When a package's dependency tree winds up bringing in > multiple versions of the same library, this can indeed cause annoyances when > building the package, such as having to restart the build procedure. > However, this typically doesn't lead to any runtime issues. True, but as I have gcc46 built, I'm not waiting around for gcc44 and its dependencies to compile ;) Thank you for updating the info file. > The real issue here is that fftw is unmaintained and it didn't get updated > to use gcc46 instead of gcc44 for builds on OS 10.5 and OS 10.6. I'm > assuming you're on one of those, since you didn't say, and because fftw uses > gcc46 on OS 10.7 because we banned having an earlier gcc4N there. I have > updated fftw for OS 10.5 and 10.6 to use gcc46. I'll post here for any other 10.4 tree packages I find which seem to need updating. I am using a 10.6.8 system as I am providing compiled software as a Mac application within a DMG file as 3-way universal binaries (http://www.nmr-relax.com/download.html#Mac_OS_X), on top of the fink relax packages http://pdb.finkproject.org/pdb/package.php/relax-py27, and some users are using ppc7400 systems and will be for the foreseeable future. I gave a slight hint to the system I am using with the info file link into the 10.4 tree ;) Cheers, Edward -- Edward d'Auvergne, PhD lead developer of the projects relax, minfx, and bmrblib http://www.nmr-relax.com http://gna.org/projects/minfx http://gna.org/projects/bmrblib ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Fink-devel mailing list Fink-devel@lists.sourceforge.net List archive: http://news.gmane.org/gmane.os.apple.fink.devel Subscription management: https://lists.sourceforge.net/lists/listinfo/fink-devel
