Index: library/mongodb/README
===================================================================
diff -u -rab21c8502870e715c567c657146283699e31b01b -r7e5bd323c23245a76196e95966ad219b512162f2
--- library/mongodb/README	(.../README)	(revision ab21c8502870e715c567c657146283699e31b01b)
+++ library/mongodb/README	(.../README)	(revision 7e5bd323c23245a76196e95966ad219b512162f2)
@@ -13,26 +13,46 @@
 - libbson 1.5.1 (released Dec 17, 2016)
 
 Follow the following steps to get MongoDB up and running
-and to compile the MongoDB driver for nx:
+and to compile the MongoDB driver for nx.
 
+OBTAIN MONGODB and MONGO-C-DRIVER:
+
 - Compile or obtain mongodb (the database).
 
 - Compile or obtain the mongo-c-driver (client interface)
 
       cd /usr/local/src
+      wget https://github.com/mongodb/mongo-c-driver/releases/download/1.5.1/mongo-c-driver-1.5.1.tar.gz
+      tar zxvf mongo-c-driver-1.5.1.tar.gz
+      rm -rf mongo-c-driver
+      ln -s mongo-c-driver-1.5.1 mongo-c-driver
+      cd mongo-c-driver
+      ./configure --disable-sasl
+      make
+      sudo make install
+
+  Alternatively, one can get the newest version form git
+
+      cd /usr/local/src
       git clone https://github.com/mongodb/mongo-c-driver
       cd mongo-c-driver
-      sh autogen.sh
+      sh autogen.sh --disable-sasl
       make
       sudo make install
 
-If you experience errors during autogen on debian, you might have to
-   apt-get install libtool
+  If you experience errors during autogen on debian, you might have to
+      apt-get install libtool
 
-If configure complains about not finding bson, you might have to do
-   export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
+  If configure complains about not finding bson, you might have to do
+      export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
 
+  Version 1.5.1 of the c-driver leads on Mac OS X to a crash on exit,
+  when configured sasl support (from mac ports). Therefore, the
+  configure switch "--disable-sasl" is recommended for the time being.
 
+
+COMPILING THE MONGO NSF INTERFACE:
+
 Assume the following installation directories
 
   - Tcl:             /usr/local/ns/lib/