[SCM] GNU M4 source repository branch, master, updated. cvs-readonly-109-gd74cecd

[Eric Blake]

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- Log -----------------------------------------------------------------
commit d74cecd6377345903ba25c9d9b82729324fbbcf8
Author: Eric Blake <address@hidden>
Date:   Wed May 7 11:22:07 2008 -0600

    Test for traceon regression just fixed in branch-1.6.
    
    * doc/m4.texinfo (Trace): Enhance test.
    * NEWS: Port news item from branch.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog      |    6 ++++++
 NEWS           |    4 ++++
 doc/m4.texinfo |   10 ++++++++++
 3 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 3470af1..2f39b0e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-05-07  Eric Blake  <address@hidden>
+
+       Test for traceon regression just fixed in branch-1.6.
+       * doc/m4.texinfo (Trace): Enhance test.
+       * NEWS: Port news item from branch.
+
 2008-05-05  Eric Blake  <address@hidden>
 
        Stage 22: allow builtin token concatenation outside address@hidden
diff --git a/NEWS b/NEWS
index 35440ee..fd3bb09 100644
--- a/NEWS
+++ b/NEWS
@@ -212,6 +212,10 @@ promoted to 2.0.
 * Noteworthy changes in Version 1.6 (????-??-??) [stable]
   Released by ????, based on git version 1.4.10b.x-*
 
+** Fix regression introduced in 1.4.4b where using `traceon' could delete
+   a macro.  This was most noticeable with `traceon(`traceon')', but
+   would also happen in cases such as `foo(traceon(`foo'))'.
+
 ** Fix regression introduced in 1.4.10b (but not present in 1.4.11) where
    using `builtin' or `indir' to perform nested `shift' calls triggered an
    assertion failure.
diff --git a/doc/m4.texinfo b/doc/m4.texinfo
index e446765..7bdfa66 100644
--- a/doc/m4.texinfo
+++ b/doc/m4.texinfo
@@ -3896,6 +3896,16 @@ does not transfer tracing status.
 
 @example
 $ @kbd{m4 -d}
+traceon(`traceon')
address@hidden
+traceon(`traceoff')
address@hidden: -1- traceon(`traceoff') -> `'
address@hidden
+traceoff(`traceoff')
address@hidden: -1- traceoff(`traceoff') -> `'
address@hidden
+traceoff(`traceon')
address@hidden
 traceon(`eval', `m4_divnum')
 @result{}
 define(`m4_eval', defn(`eval'))


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