--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-02-15  Albert Chin-A-Young  <china@thewrittenword.com>
+
+	* m4/include_next.m4: Update comment about IBM C 9.0/10.1 bug, now that
+	fixes are available from IBM.
+
 2009-02-13  Jim Meyering  <meyering@redhat.com>
 
 	fts: arrange not to stat non-directories in more cases

--- a/m4/include_next.m4
+++ b/m4/include_next.m4
@@ -1,5 +1,5 @@
-# include_next.m4 serial 10
-dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
+# include_next.m4 serial 11
+dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -32,14 +32,14 @@
     [gl_cv_have_include_next],
     [rm -rf conftestd1a conftestd1b conftestd2
      mkdir conftestd1a conftestd1b conftestd2
-     dnl The include of <stdio.h> is because IBM C 9.0 on AIX 6.1 supports
-     dnl include_next when used as first preprocessor directive in a file,
-     dnl but not when preceded by another include directive. Additionally,
-     dnl with this same compiler, include_next is a no-op when used in a
-     dnl header file that was included by specifying its absolute file name.
-     dnl Despite these two bugs, include_next is used in the compiler's
-     dnl <math.h>. By virtue of the second bug, we need to use include_next
-     dnl as well in this case.
+     dnl The include of <stdio.h> is because IBM C 9.0, 10.1 (original
+     dnl versions, prior to 2009-01 updates) on AIX 6.1 supports include_next
+     dnl when used as first preprocessor directive in a file, but not when
+     dnl preceded by another include directive. Additionally, with this same
+     dnl compiler, include_next is a no-op when used in a header file that was
+     dnl included by specifying its absolute file name. Despite these two bugs,
+     dnl include_next is used in the compiler's <math.h>. By virtue of the
+     dnl second bug, we need to use include_next as well in this case.
      cat <<EOF > conftestd1a/conftest.h
 #define DEFINED_IN_CONFTESTD1
 #include_next <conftest.h>