install guide: add instrs for modern cmake
Add instructions for building the latest version of cmake from source.
This is required for older distros, eg RHEL8, where the version of
cmake in the package manager is < 3.14.
@@ -112,7 +112,7 @@ Register and enable Red Hat subscription to install any packages on the system.
# subscription-manager register --proxy=PROXY --username=USER --password=PASSWORD --auto-attach
```
-Set the RHEL version and install packages. Set proxy name and port number
+Set the RHEL version and install packages. Set proxy name and port number.
```console
# subscription-manager release --set=8.2 --proxy proxy-name.com:port number
@@ -126,6 +126,17 @@ Set the RHEL version and install packages. Set proxy name and port number
# python3 -m pip install --user jsonschema virtualenv pudb pyyaml
```
+Install the latest version of [cmake](https://github.com/Kitware) on top of the outdated cmake package from the package manager.
+
+```console
+# cd cmake-3.25.1/
+# ./bootstrap --prefix=/usr
+# make
+# make install
+# which cmake
+/usr/bin/cmake
+```
+
### Create opae-sdk packages ###
Download the OPAE-SDK source code from github. For example, download from Master branch.
