doc: add unrepresented flags docs for configure

Added documentation to support usage of advanced features of `configure` on Windows. PR-URL: #28069 Fixes: #17331 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]>
nodejs · Jan 14, 2020 · bbb5707 · bbb5707
1 parent bfccc00
commit bbb5707
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diff --git a/doc/guides/maintaining-the-build-files.md b/doc/guides/maintaining-the-build-files.md
@@ -34,6 +34,14 @@ update the build and testing process on Windows.
 
 ## configure
 
+The `configure` script recognizes many CLI flags for special build formulas.
+Many are not represented by `vcbuild` shortcuts, and need to be passed
+either by:
+
+* Calling `python configure --XXX --YYY=PPPP` directly, followed by `vcbuild
+  noprojgen`
+* Setting `set config_flags=--XXX --YYY=PPPP` before calling `vcbuild`
+
 To see the help text, run `python configure --help`. Update this file when you
 need to update the configuration process.