From 3033e0e4940e6ecc43f478f1dcfbd0c3cb1e3ef8 Mon Sep 17 00:00:00 2001
From: Adam Sandberg Ericsson <adam@sandbergericsson.se>
Date: Sat, 4 Jul 2020 16:40:51 +0100
Subject: hadrian: add flag to skip rebuilding dependency information #17636

---
 hadrian/doc/make.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'hadrian/doc')

diff --git a/hadrian/doc/make.md b/hadrian/doc/make.md
index 318b736fa5..b047baed1d 100644
--- a/hadrian/doc/make.md
+++ b/hadrian/doc/make.md
@@ -208,3 +208,17 @@ time you fire up a build. This is not possible with the Make build system.
   # Hadrian
   build nofib # builds the compiler and everything we need if necessary, too
   ```
+
+- `make FAST=YES`
+
+  Partially supported in hadrian with the `--skip-depends` argument. Since
+  hadrian is not directory aware some of the features of `FAST=YES` are not
+  replicated.
+
+  ```sh
+  # Make
+  make FAST=YES
+
+  # Hadrian
+  build --skip-depends
+  ```
-- 
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