[sdpb] 165/233: Update Readme.md

[Tobias Hansen]

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thansen pushed a commit to branch master
in repository sdpb.

commit 37545eac3abc510d0ad69d9a8c70467cc26e1f93
Author: David Simmons-Duffin <davidsd at gmail.com>
Date:   Mon Mar 16 18:45:39 2015 -0400

    Update Readme.md
---
 Readme.md | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Readme.md b/Readme.md
index f386be7..39cc59d 100644
--- a/Readme.md
+++ b/Readme.md
@@ -32,13 +32,14 @@ to install.
 
 ### Linux Installation
 
-SDPB has been tested on Red Hat Linux. To install,
+SDPB has been tested on Red Hat Linux. (Many thanks to Chris Beem for helping with installation instructions.) To install,
 
-1. Download Boost and GMP from the links above and build/install them.
+1. Download Boost and GMP from the links above. Install GMP with the option `--enable-cxx` added to `./configure`. Install Boost.
 
 2. Edit the `Makefile` to define the variables `GMPINCLUDEDIR`,
-`BOOSTINCLUDEDIR`, and `LIBDIR.` Then type `make` to build the `sdpb`
-executable.
+`BOOSTINCLUDEDIR`, and `LIBDIR.` Ensure `LIBDIR` is in your `LD_LIBRARY_PATH`. 
+
+3. Type `make` to build the `sdpb` executable.
 
 ### Mac OS X Installation
 

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