Index: /issm/trunk-jpl/externalpackages/proj/install-6.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/proj/install-6.sh	(revision 26416)
+++ /issm/trunk-jpl/externalpackages/proj/install-6.sh	(revision 26416)
@@ -0,0 +1,55 @@
+#!/bin/bash
+set -eu
+
+
+# Constants
+#
+VER="6.2.1"
+
+PREFIX="${ISSM_EXT_SHARED_DIR}/proj/install" # Set to location where external package should be installed
+
+## Environment
+#
+export CC=mpicc
+export CXX=mpicxx
+# NOTE: On macOS, SQLite3 should be installed by default, but PROJ currently
+#		requires,
+#
+#			SQLITE3_LIBS="-lsqlite3".
+#
+#		On Ubuntu Linux, install the SQLite3 binary, libraries and headers
+#		with,
+#
+#			`apt-get install sqlite3 libsqlite3-dev`
+#
+export SQLITE3_LIBS="-lsqlite3"
+
+# Cleanup
+rm -rf ${PREFIX} src
+mkdir -p ${PREFIX} src
+
+# Download source
+$ISSM_DIR/scripts/DownloadExternalPackage.sh "https://issm.ess.uci.edu/files/externalpackages/proj-${VER}.tar.gz" "proj-${VER}.tar.gz"
+
+# Unpack source
+tar -zxvf proj-${VER}.tar.gz
+
+# Move source into 'src' directory
+mv proj-${VER}/* src
+rm -rf proj-${VER}
+
+# Configure
+cd src
+./configure \
+	--prefix="${PREFIX}" \
+	--disable-dependency-tracking \
+	--enable-fast-install
+
+# Compile and install
+if [ $# -eq 0 ]; then
+	make
+	make install
+else
+	make -j $1
+	make -j $1 install
+fi