diff --git a/.gitignore b/.gitignore
index fbd1b53..5254266 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,7 @@
 /doc/_build
 /dist/
 /target/
-/3rd-party
+3rd-party
 .DS_Store
 doc/tools/shortDescriptions.rst
 doc/tools/index.rst
diff --git a/doc/index.rst b/doc/index.rst
index 2a188d2..4a18e52 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -16,9 +16,11 @@ The Terrasaur package requires Java 21 or later.  Some freely available versions
 Download
 ~~~~~~~~
 
-Packages for use on Mac OS X and Linux are available at ...
+Binary packages for use on Mac OS X and Linux are available at ...
 
-Windows users may use the Linux package with the `Windows Subsystem for Linux <https://docs.microsoft.com/en-us/windows/wsl/>`__.
+We have not tried using the softare on Microsoft Windows, but users may try the Linux package with the `Windows Subsystem for Linux <https://docs.microsoft.com/en-us/windows/wsl/>`__.
+
+Source code and build instructions are available at `GitHub <https://github.com/JHUAPL/Terrasaur>`.
 
 Install
 ~~~~~~~
@@ -37,15 +39,6 @@ Documentation and Examples
 
 `This <tools/index.html>`__ page shows the usage of each utility.
 
-Examples for use are shown at ...
-
-Build from source
-~~~~~~~~~~~~~~~~~
-
-Source code is available at ...
-
-Third party libraries are available at ...
-
 Contents
 ~~~~~~~~
 
diff --git a/support-libraries/README.md b/support-libraries/README.md
index e4b6ebc..fa06f25 100644
--- a/support-libraries/README.md
+++ b/support-libraries/README.md
@@ -12,6 +12,7 @@ The Terrasaur code is available at [GitHub](https://github.com/JHUAPL/Terrasaur.
 You may need to install the following packages with 
 your favorite package manager:
 * [Apache Ant](https://ant.apache.org/) - needed for OpenCV Java support
+* [CMake](https://cmake.org/) - used to build VTK and OpenCV
 * [SQLite](https://www.sqlite.org/index.html) - needed for lidar-optimize
 
 ## Build the packages
@@ -29,3 +30,6 @@ an intel macOS system):
 ./buildAll.bash ../3rd-party/$(uname -s)_$(uname -m)
 ```
 
+### Note for macOS users
+
+We have found that the VTK library will not compile with the XCode command line tools version 16.3 with clang-1700.0.13.3.  We could successfully compile after downgrading to the Xcode 16 command line tools with clang-1600.026.3.
\ No newline at end of file