Changes to m4/doc/m4.texinfo,v

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Changes by:     Eric Blake <ericb>      06/08/23 11:39:26

Index: doc/m4.texinfo
===================================================================
RCS file: /sources/m4/m4/doc/m4.texinfo,v
retrieving revision 1.31
retrieving revision 1.32
diff -u -b -r1.31 -r1.32
--- doc/m4.texinfo      22 Aug 2006 13:44:22 -0000      1.31
+++ doc/m4.texinfo      23 Aug 2006 11:39:26 -0000      1.32
@@ -623,7 +623,10 @@
 Set the debug-level according to the flags @var{FLAGS}.  The debug-level
 controls the format and amount of information presented by the debugging
 functions.  @xref{Debug Levels}, for more details on the format and
-meaning of @var{FLAGS}.  If omitted, @var{FLAGS} defaults to @samp{aeq}.
+meaning of @var{FLAGS}.  If omitted, @var{FLAGS} defaults to
address@hidden  When the option is presented multiple times, if later
address@hidden starts with @samp{-} or @samp{+}, they are cumulative,
+otherwise the later flags override all earlier occurrences.
 
 @item -l @var{NUM}
 @itemx address@hidden
@@ -4006,15 +4009,15 @@
 to insure that they are off or on, you may do so using
 @code{syncoutput}.
 
address@hidden(1)}, @code{syncoutput(on)}, and @code{syncoutput(yes)}
-causes @code{m4} to emit sync lines of the form: @code{#line <number>
-["<filename>"]}.
+If @var{truth} matches the extended regular expression
address@hidden|^([oO][nN])}, it causes @code{m4} to emit sync lines of the
+form: @code{#line <number> ["<file>"]}.
 
address@hidden(0)}, @code{syncoutput(off)}, and @code{syncoutput(no)}
-turn them off.
+If @var{truth} is empty, or matches the extended regular expression
address@hidden|^([oO][fF])}, it causes @code{m4} to turn sync lines off.
 
-All other arguments are ignored as is @code{syncoutput} without
-parenthesis.
+All other arguments are ignored and issue a warning.  The macro
address@hidden is only recognized with arguments.
 @end deffn
 
 @node Frozen files