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-rw-r--r--doc/make.texi19
1 files changed, 12 insertions, 7 deletions
diff --git a/doc/make.texi b/doc/make.texi
index 69de5b7..8a35780 100644
--- a/doc/make.texi
+++ b/doc/make.texi
@@ -8730,7 +8730,8 @@ With no type or the type @samp{target}, output from the entire recipe
of each target is grouped together. With the type @samp{line}, output
from each line in the recipe is grouped together. With the type
@samp{recurse}, the output from an entire recursive make is grouped
-together. @xref{Parallel Output, ,Output During Parallel Execution}.
+together. With the type @samp{none}, no output synchronization is
+performed. @xref{Parallel Output, ,Output During Parallel Execution}.
@item -q
@cindex @code{-q}
@@ -8803,13 +8804,17 @@ instead of running their recipes. This is used to pretend that the
recipes were done, in order to fool future invocations of
@code{make}. @xref{Instead of Execution, ,Instead of Executing Recipes}.
-@item --trace
+@item --trace[=@var{mode}]
@cindex @code{--trace}
-@c Extra blank line here makes the table look better.
-
-Print the entire recipe to be executed, even for recipes that are
-normally silent (due to @code{.SILENT} or @samp{@@}). Also print the
-makefile name and line number where the recipe was defined.
+Show tracing information for @code{make} execution. With no mode or
+the type @samp{rule}, print the entire recipe to be executed, even for
+recipes that are normally silent (due to @code{.SILENT} or @samp{@@}).
+Also print the makefile name and line number where the recipe was
+defined, and information on why the target is being rebuilt. With the
+type @samp{dir}, directory enter/leave lines are shown around each
+synchronized output segment. These modes are cumulative and can be
+set with multiple instances of the @code{--trace} flag. With the type
+@samp{none}, all tracing is disabled.
@item -v
@cindex @code{-v}