Installation of Open64-4.2.1 on Ubuntu Intrepid Ibex (8.10)

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The latest version is 4.2.1 available in both precompiled binaries (tar.gz file and rpm) and the source. Installation is pretty much easy and straight-forward but because of compatibility problem of the open64 C++ compiler and the gcc-4.3 version, which comes as the default gcc in Intrepid Ibex, there are a lot of problem while installation.This installation guide is tested on Ubuntu Intrepid Ibex running on I386 arch processor. As few of the files in the source file of the version were missing a few headers because of which it gives errors while running .So here is a step-by-step guide on successful and hassle-free installation of Open64-4.2.1 on Intrepid Ibex systems. 


  * Download the binary depending on the architecture of your own; I had downloaded the I386 arch binary.

(Also do not download the src file which is buggy.) 


  * Add the following lines to your ~/.bashrc file. Save and exit.

    export TOOLROOT=~/compiler

    export PATH=$TOOLROOT/bin:$PATH



  * Now, source the updated bashrc file by the command.

    source ~/.bashrc



  * Make a new directory compiler in the home directory.

    mkdir ~/compiler



  * As the gcc-version pre installed in Intrepid is version 4.3 and Open64-4.2.1 has compatibility issues with it,

we need to uninstall gcc-4.3 and install gcc-4.1. The easiest way is using Synaptic Packet Manager

(System>Administration>Synaptic Packet Manager, of the desktop panel). 


  * In the same manner, mark gcc-4.1 for installation, in the Synaptic and Click on Apply. The changes will take place.



  * Similarly, follow the above process to remove g++-4.3 and install g++-4.1



  * Now in order to make the commands and work, we need to link them to the 4.1 version compilers.

    sudo ln -s gcc-4.1 gcc

    sudo ln -s g++-4.1 g++



  * Now extract the binary using the tar xjvf name-of-the-tar-file.tar.bz2 command. to the extracted directory and run ./INSTALL.sh



  * Now opencc (C compiler), openCC (C++ compiler) and openf90 (Fortran compiler) are installed and can be used.



  * Optionally, gcc-4.3 and g++-4.3 can be installed again. The compilers will work regardless
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