docs: explaining UNIX environment is required (#1760)

suztomo · web-flow · commit 15559248d96d · 2022-08-01T16:38:27.000-04:00
* docs: explaining UNIX environment is required Fixes googleapis/gax-java#1731
diff --git a/gax-java/README.md b/gax-java/README.md
@@ -58,8 +58,13 @@ Java Versions
 
 Java 8 or above is required for using this library.
 
-To build this project, JDK 11 or above is required. The build produces Java
-bytecode targeted for Java 8.
+To build this project, JDK 11 or above is required.
+The build produces Java bytecode targeted for Java 8.
+
+The project uses Gradle to build while it also provides Bazel build.
+
+If you build this project in Bazel, it requires Bazel 4 and basic UNIX commands
+(e.g., `cat`).
 
 Contributing
 ------------
