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-rw-r--r--doc/manual.asciidoc8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/manual.asciidoc b/doc/manual.asciidoc
index d7ec932..df4199a 100644
--- a/doc/manual.asciidoc
+++ b/doc/manual.asciidoc
@@ -445,6 +445,14 @@ without any dependencies, the target will be considered out of date if
it does not exist. Without a phony build statement, Ninja will report
an error if the file does not exist and is required by the build.
+To create a rule that never rebuilds, use a build rule without any input:
+----------------
+rule touch
+ command = touch $out
+build file_that_always_exists.dummy: touch
+build dummy_target_to_follow_a_pattern: phony file_that_always_exists.dummy
+----------------
+
Default target statements
~~~~~~~~~~~~~~~~~~~~~~~~~