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======= Install W-phase dependencies on MacOS using homebrew and pip =======

Before reading this, you should first read [[wphase:documentation|the W-phase documentation page]].

The instructions below have not yet been rigorously tested, please report any problem to Zacharie Duputel <zacharie.duputel@unistra.fr> or Luis Rivera <luis.rivera@unistra.fr>.

===== Install Homebrew ===== 

For detailed information, please refer to http://brew.sh and https://github.com/Homebrew/homebrew

Pre-requirements:
   * An Intel CPU 1
   * OS X 10.6 or higher 2
   * Command Line Tools for Xcode: xcode-select --install, https://developer.apple.com/downloads or Xcode 3
   * A Bourne-compatible shell for installation

To install homebrew, in bash:
<code>
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”
</code>

To check if everything is OK, use:
<code>
brew doctor
</code>



===== Install gcc, python, pip, etc. ===== 

To install gcc-4.9 and python2.7:
<code>
brew install gcc
brew install python
</code>
Homebrew installs pip with python.

Install required python modules using pip:
<code>
pip install numpy
pip install matplotlib
pip install basemap --allow-external basemap --allow-unverified basemap
</code>

We will also need gmt4:
<code>
brew install gmt4
</code>
As indicated in [[wphase:documentation|the documentation page]], the GMT_BIN environment variable should point to appropriate GMT bin directory (e.g., "/usr/local/bin" or "/usr/local/Cellar/gmt4/4.5.13/bin").


To install GNU core utilities:
<code>
brew install coreutils
</code>

Then:
<code>
brew tap homebrew/dupes
brew install ghostscript
brew install binutils
brew install diffutils 
brew install ed --default-names 
brew install findutils --default-names 
brew install gawk 
brew install gnu-indent --default-names 
brew install gnu-sed --default-names 
brew install gnu-tar --default-names 
brew install gnu-which --default-names 
brew install gnutls --default-names 
brew install grep --default-names 
brew install gzip 
brew install screen 
brew install watch 
brew install wdiff --with-gettext 
brew install wget
</code>

Finally, add the following lines to your .bashrc file:
<code>
export PATH="$(brew --prefix coreutils)/libexec/gnubin:/usr/local/bin:$PATH"
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
export LD_INCLUDE_PATH=/usr/local/include:$LD_INCLUDE_PATH
</code>

===== Installing the W-phase code =====

   * Before compiling the code, replace "gcc" by "gcc-4.9" in src/Makefile (or any other recent version gcc of installed with homebrew).
   * You can then compile the W-phase code as explained in [[wphase:documentation|the documentation page]].
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