=Objectives and Overview=
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This wiki page describes how to download and install the [[PATH_MCP_Solver|PATH MCP Solver]] for a target platform.

[[toc]]

=Windows Instructions=
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* Download //pathlib.zip// from ftp://ftp.cs.wisc.edu/math-prog/solvers/path/pathlib.zip
* Unzip the archive and you will have a folder called //pathlib//.

Next you have two options for installing //pathlib//, you only need to do **one** of the following:

# Place the //pathlib// folder into the DVC source tree in the //libraries// folder. Your directory tree will look like this: dvc/libraries/pathlib.
# Place the //pathlib// folder anywhere in your file system and set an envrionment variable named **PATHLIBDIR** to indicate where the folder may be found. For example, **PATHLIBDIR=**C:\pathlib
> Here are [[http://support.microsoft.com/kb/310519| instructions for setting environment variables in Windows]].

At runtime DVC applications need to find path46.dll. This file is located at pathlib/lib/windows/dynamic/path46.dll. Copy this dll to a folder that is in your system's search path. The easiest way to accomplish this is to copy path46.dll to C:\WINDOWS\system32.


=Linux Instructions=
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* Download //pathlib.zip// from  ftp://ftp.cs.wisc.edu/math-prog/solvers/path/pathlib.zip
* Unzip the archive and you will have a folder called //pathlib//.

Next you have three options for installing //pathlib//, you only need to do **one** of the following:

# Place the //pathlib// directory into the DVC source tree in the //libraries// directory. Your directory tree will look like this: dvc/libraries/pathlib.
# Place the //pathlib// directory anywhere in your file system and set an environment variable named **PATHLIBDIR** to indicate where the directory may be found. For example, **PATHLIBDIR=**~/pathlib
# Manually install pathlib to /usr/local. You will need super user privileges. Here is how you would do it on Ubuntu Linux:
[[code]]
cd pathlib
sudo mkdir /usr/local/include/PATH
sudo cp include/* /usr/local/include/PATH
sudo cp lib/linux/dynamic/* /usr/local/lib/

## This last line adds read permission to the headers
sudo chmod o+r /usr/local/include/PATH/*
[[code]]