Add implicit outputs deprecation to docs
RELNOTES:none
@@ -187,6 +187,12 @@ config_setting(
<h2 id="implicit-outputs">Implicit output targets</h2>
+<p>
+ <i>Implicit outputs in C++ are deprecated. Please refrain from using it
+ in other languages where possible. We don't have a deprecation path yet
+ but they will eventually be deprecated too.</i>
+</p>
+
<p>When you define a build rule in a BUILD file, you are explicitly
declaring a new, named rule target in a package. Many build rule
functions also <i>implicitly</i> entail one or more output file
