Index: /issm/trunk-jpl/externalpackages/atlas/install-macosx64.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/atlas/install-macosx64.sh	(revision 15699)
+++ /issm/trunk-jpl/externalpackages/atlas/install-macosx64.sh	(revision 15699)
@@ -0,0 +1,32 @@
+#!/bin/bash
+set -eu
+
+#Some cleanup
+rm -rf src install ATLAS build
+mkdir src install build
+
+#Download from ISSM server
+$ISSM_DIR/scripts/DownloadExternalPackage.py 'http://issm.jpl.nasa.gov/files/externalpackages/atlas3.10.0.tar.bz2' 'atlas3.10.0.tar.bz2'
+
+#Untar 
+tar -zxvf  atlas3.10.0.tar.bz2
+
+#Move atlas into src directory
+mv ATLAS/* src
+rm -rf ATLAS
+
+#Configure atlas
+cd build
+
+export CFLAGS=" -arch x86_64"
+
+../src/configure \
+	--prefix="$ISSM_DIR/externalpackages/atlas/install" 
+
+#Compile atlas
+if [ $# -eq 0 ]; then
+	make
+else
+	make -j $1
+fi
+make install