Document implicit dependency of XNNPACK on Googletest.
@@ -6,6 +6,14 @@ This package builds TensorFlow Lite (TFLite) using CMake from fixed revisions fr
|-|-|
| `v2.3.90` | 5c1c1085fe331de3 |
+## Pre-requisites
+
+The [XNNPACK](https://github.com/google/XNNPACK) backend implicitly requires [Googletest](https://github.com/google/googletest), which can be installed on Ubuntu/Debian as follows:
+
+```bash
+$ sudo apt install libgtest-dev
+```
+
## Installation
Build TFLite with one of the supported backends:
