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+2009-08-01  Joel E. Denny  <jdenny@clemson.edu>
+
+	Pacify "gcc -Wunused" for the input function from Flex.
+	Reported by Alex Rozenman.  This warning shows up with gcc-4.3.0
+	and later.
+	* src/scan-code.l: Add "%option noinput", which I cannot find in
+	the Flex manual, but which Flex has supported since at least as
+	far back as 2.5.4.  However, if any of our developers still use
+	Flex 2.5.4, they'll need to stop configuring with
+	--enable-gcc-warnings because "%option noinput" didn't work
+	correctly until Flex 2.5.6.
+	* src/scan-gram.l: Likewise.
+	* src/scan-skel.l: Likewise.
+
+2009-06-29  Akim Demaille  <demaille@gostai.com>
+
+	build: avoid concurrent extraction of calc++.
+	* examples/calc++/Makefile.am (calc.stamp): New.
+	Depend on it to create the sources of calc++ so that concurrent
+	builds don't launch several "extexi" in parallel.
+	Not only this is inefficient, this also builds incorrect sources
+	with several extractions mixed together.
+
+2009-06-25  Akim Demaille  <demaille@gostai.com>
+
+	hash: check insertion for memory exhaustion.
+	* src/uniqstr.c (uniqstr_new): New.
+
+2009-06-11  Akim Demaille  <demaille@gostai.com>
+
+	hash: check insertion for memory exhaustion.
+	* src/muscle-tab.c (muscle_insert, muscle_grow)
+	* src/state.c (state_hash_insert): Check the return value of
+	hash_insert.
+
+2009-06-10  Akim Demaille  <demaille@gostai.com>
+
+	gnulib: update.
+        * gnulib: Update to latest.
+        * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
+        * m4/.gitignore: Regen.
+        * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
+        Call xalloc_die on hash_insert failures.
+        Requested by the new __warn_unused_result__ attribute of
+        hash_insert.
+
+2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* data/c++.m4: Update copyright year.
+
+2009-05-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Handle a trailing `:' in a user-supplied C++ namespace better.
+	* data/c++.m4 (b4_namespace_close): Don't let it be printed
+	among the closing braces here.  This fix might make the
+	generated code easier to debug, but otherwise it should be
+	insignificant because a trailing `:' is a C++ error already.
+
+2009-05-11  Akim Demaille  <demaille@gostai.com>
+
+	doc: use C++ headers.
+	* doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
+	headers.
+
+2009-05-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Declare %code to be a permanent feature.
+	* NEWS (2.4.2): Here.
+	* doc/bison.texinfo (Prologue Alternatives): Don't say it's
+	experimental.
+	(Decl Summary): Likewise.
+
+2009-04-14  Akim Demaille  <demaille@gostai.com>
+
+	doc: minor fixes.
+	* doc/bison.texinfo (Decl Summary): Fix entry about %debug.
+	(Table of Symbols): Remove duplicate entry for %debug.
+
 2009-04-06  Eric Blake  <ebb9@byu.net>
 
 	Work around autoconf 2.63b bug in testsuite.