The Intel Fortran Compiler on 64-bit Ubuntu Lucid

Jurjen Bokma

September 2010


Ubuntu createda nasty situation: libstdc++5 is not available on Lucid. But Intel created an even nastier one: the Intel Fortran Compiler is not available in a 64-bit version. Instead, they offer the 32-bit version, and IMHO it doesn't look in the proper paths for libraries, nor is there documentation on how to make the installer look in the proper places. They do offer a kludgy workaround for this situation, but their workaround doesn't respect the Ubuntu package manager, and is therefore neither maintainable nor packageable, and must be scripted on a per-host basis.

This is not good if you need the IFC on a lot of machines. So I repackaged the libraries needed (this section doesn't handle the installation of the compiler itself)...

  1. We fetch both the i386 and the amd64 packages from http://packages.debian.org/lenny/amd64/libstdc++5/

  2. We repackage the i386 version for amd64, but we send the libraries to /usr/lib32 instead of /usr/lib. The packaging is too lengthy to describe here, but I have a short introduction to packaging for .deb online. As a hint, we do show the Makefile:

    #!/usr/bin/make
    
    install:
    install -m 644 -t $(DESTDIR)/usr/lib32 usr/lib/libstdc++.so.5.0.7
    
    clean:
    rm -f $(DESTDIR)/usr/lib32/libstdc++.so.5.0.7
    
    .PHONY: install clean
    	

    ... debian/control:

    Source: gcc-3.3
    Section: unknown
    Priority: extra
    Maintainer: Jurjen Bokma <j.bokma@rug.nl>
    Build-Depends: debhelper (>= 7)
    Standards-Version: 3.8.3
    
    Package: libstdc++5-32bit
    Architecture: any
    Depends: ${shlibs:Depends}, ${misc:Depends}
    Description: 32-bit libstdc++5.so in /lib32
    Ubuntu fails to ship libstdc++5 for Lucid.
    Intel fails to provide a 64-bit version of their Fortran
    compiler. This package provides the 32-bit version of
    libstdc++ in /lib32, so you may install use the IFC anyway.            
    	

    ... and debian/rules:

    #!/usr/bin/make -f
    
    clean:
    dh_testdir
    dh_testroot
    
    # Add here commands to clean up after the build process.
    $(MAKE) clean
    dh_clean
    
    install:
    dh_testdir
    dh_testroot
    dh_clean -k
    dh_installdirs
    
    # Add here commands to install the package into debian/libstdc++5-32bit
    $(MAKE) DESTDIR=$(CURDIR)/debian/libstdc++5-32bit install
    
    # Build architecture-independent files here.
    binary-indep: install
    # We have nothing to do by default.
    dh_testdir
    dh_testroot
    dh_installchangelogs
    dh_installdocs
    dh_installexamples
    dh_link usr/lib32/libstdc++.so.5.0.7 usr/lib32/libstdc++.so.5
    dh_strip
    dh_compress
    dh_fixperms
    dh_makeshlibs
    dh_installdeb
    dh_gencontrol
    dh_md5sums
    dh_builddeb
    
    binary-arch:
    
    binary: binary-indep
    .PHONY: build clean binary-indep binary install configure
    	

    So we create the package with:

    user@host:~$ pdebuild --architecture amd64 --auto-debsign --debsign-k "user@host.domain" --buildresult ../lastbuild --logfile ../lastbuild/pdebuild.log

  3. Creating a reprepro repository I haven't documented yet. (It was done in haste.) But we put the packages in it like this:

    user@host:~$ sudo reprepro -b /srv/repo/company/ubuntu/ includedeb lucid-experimental ~/libstdc++5_3.3.6-18_amd64.deb
    Exporting indices...
    user@host:~$ sudo reprepro -b /srv/repo/company/ubuntu/ includedeb lucid-experimental /home/jurjen/libstdc++5-32bit_3.3.6ds1-18_amd64.deb
    Exporting indices...

  4. The task of installing libstdc++5 on a PC (that already has the .deb lines for the reprepro repository in its sources.list, is now reduced to

    user@host:~$ sudo apt-get install -y libstdc++5 libstdc++5-32bit

  5. The Fortran Compiler's installer now still complains about an unsupported OS, but it does install.