Switch to autoconf 2.67.
diff --git a/ChangeLog b/ChangeLog
index f1f0428..f0abb06 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-31  Bruno Haible  <bruno@clisp.org>
+
+	* Makefile.devel (AUTOCONF, AUTOHEADER): Switch to version 2.67.
+	* preload/Makefile.devel (AUTOCONF): Likewise.
+
 2010-07-03  Bruno Haible  <bruno@clisp.org>
 
 	* Makefile.devel (AUTOCONF, AUTOHEADER): Switch to version 2.66.
diff --git a/Makefile.devel b/Makefile.devel
index 70096a3..d39883a 100644
--- a/Makefile.devel
+++ b/Makefile.devel
@@ -4,8 +4,8 @@
 
 SHELL = /bin/sh
 MAKE = make
-AUTOCONF = autoconf-2.66
-AUTOHEADER = autoheader-2.66
+AUTOCONF = autoconf-2.67
+AUTOHEADER = autoheader-2.67
 AUTOMAKE = automake-1.11
 ACLOCAL = aclocal-1.11
 GPERF = gperf
diff --git a/libcharset/ChangeLog b/libcharset/ChangeLog
index 408bc76..aee00b1 100644
--- a/libcharset/ChangeLog
+++ b/libcharset/ChangeLog
@@ -1,3 +1,7 @@
+2010-07-31  Bruno Haible  <bruno@clisp.org>
+
+	* Makefile.devel (AUTOCONF, AUTOHEADER): Switch to version 2.67.
+
 2010-07-03  Bruno Haible  <bruno@clisp.org>
 
 	* Makefile.devel (AUTOCONF, AUTOHEADER): Switch to version 2.66.
diff --git a/libcharset/Makefile.devel b/libcharset/Makefile.devel
index 002ffd6..247e9c7 100644
--- a/libcharset/Makefile.devel
+++ b/libcharset/Makefile.devel
@@ -3,8 +3,8 @@
 
 SHELL = /bin/sh
 MAKE = make
-AUTOCONF = autoconf-2.66
-AUTOHEADER = autoheader-2.66
+AUTOCONF = autoconf-2.67
+AUTOHEADER = autoheader-2.67
 ACLOCAL = aclocal-1.11
 CP = cp
 RM = rm -f
diff --git a/preload/Makefile.devel b/preload/Makefile.devel
index e4c7591..863d9d8 100644
--- a/preload/Makefile.devel
+++ b/preload/Makefile.devel
@@ -3,7 +3,7 @@
 
 SHELL = /bin/sh
 MAKE = make
-AUTOCONF = autoconf-2.66
+AUTOCONF = autoconf-2.67
 ACLOCAL = aclocal-1.11
 CP = cp
 RM = rm -f