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-rw-r--r--dev/doc/build-system.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/dev/doc/build-system.txt b/dev/doc/build-system.txt
index 5b71dc9c92..e4ecf9e5f6 100644
--- a/dev/doc/build-system.txt
+++ b/dev/doc/build-system.txt
@@ -84,6 +84,12 @@ save precious time:
build system dares to), use GOTO_STAGE=n. This will jump into stage
n and try to do the targets you gave in that stage.
+ - To disable all dependency recalculation, use the NO_RECALC_DEPS=1
+ option. It disables REcalculation of dependencies, not calculation
+ of dependencies. In other words, if a .d file does not exist, it is
+ still created, but it is not updated every time the source file
+ (e.g. .ml) is changes.
+
Dependencies
------------