Switch to autoconf 2.62.
diff --git a/ChangeLog b/ChangeLog
index e75422f..b8bbe1e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-04-14 Bruno Haible <bruno@clisp.org>
+
+ * preload/configure.ac: Invoke AC_USE_SYSTEM_EXTENSIONS instead of
+ AC_AIX and AC_MINIX.
+ * Makefile.devel (AUTOCONF, AUTOHEADER): Require autoconf-2.62.
+ * preload/Makefile.devel (AUTOCONF): Likewise.
+ * autogen.sh: Likewise.
+
2008-04-06 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.2, with modifications:
diff --git a/Makefile.devel b/Makefile.devel
index fdc1d5b..deef3ab 100644
--- a/Makefile.devel
+++ b/Makefile.devel
@@ -4,8 +4,8 @@
SHELL = /bin/sh
MAKE = make
-AUTOCONF = autoconf-2.61
-AUTOHEADER = autoheader-2.61
+AUTOCONF = autoconf-2.62
+AUTOHEADER = autoheader-2.62
AUTOMAKE = automake-1.10
ACLOCAL = aclocal-1.10
GPERF = gperf
diff --git a/autogen.sh b/autogen.sh
index 0c6bf13..fa06031 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -4,13 +4,13 @@
# also regenerates all aclocal.m4, config.h.in, Makefile.in, configure files
# with new versions of autoconf or automake.
#
-# This script requires autoconf-2.61 and automake-1.10 in the PATH.
+# This script requires autoconf-2.62 and automake-1.10 in the PATH.
# It also requires either
# - the GNULIB_TOOL environment variable pointing to the gnulib-tool script
# in a gnulib checkout, or
# - the cvs program in the PATH and an internet connection.
-# Copyright (C) 2003-2007 Free Software Foundation, Inc.
+# Copyright (C) 2003-2008 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
diff --git a/libcharset/ChangeLog b/libcharset/ChangeLog
index ac348ba..a62c124 100644
--- a/libcharset/ChangeLog
+++ b/libcharset/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-14 Bruno Haible <bruno@clisp.org>
+
+ * configure.ac: Invoke AC_USE_SYSTEM_EXTENSIONS instead of AC_AIX and
+ AC_MINIX.
+ * Makefile.devel (AUTOCONF, AUTOHEADER): Require autoconf-2.62.
+
2008-04-06 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.2, with modifications:
diff --git a/libcharset/Makefile.devel b/libcharset/Makefile.devel
index 2503054..33b9c58 100644
--- a/libcharset/Makefile.devel
+++ b/libcharset/Makefile.devel
@@ -3,8 +3,8 @@
SHELL = /bin/sh
MAKE = make
-AUTOCONF = autoconf-2.61
-AUTOHEADER = autoheader-2.61
+AUTOCONF = autoconf-2.62
+AUTOHEADER = autoheader-2.62
ACLOCAL = aclocal-1.10
CP = cp
RM = rm -f
diff --git a/libcharset/configure.ac b/libcharset/configure.ac
index 1058d23..ef27d8c 100644
--- a/libcharset/configure.ac
+++ b/libcharset/configure.ac
@@ -46,8 +46,7 @@
dnl checks for UNIX variants that set DEFS
-AC_AIX
-AC_MINIX
+AC_USE_SYSTEM_EXTENSIONS
dnl checks for compiler output filename suffixes
diff --git a/preload/Makefile.devel b/preload/Makefile.devel
index 29315e2..49a3c95 100644
--- a/preload/Makefile.devel
+++ b/preload/Makefile.devel
@@ -3,7 +3,7 @@
SHELL = /bin/sh
MAKE = make
-AUTOCONF = autoconf-2.61
+AUTOCONF = autoconf-2.62
ACLOCAL = aclocal-1.10
CP = cp
RM = rm -f
diff --git a/preload/configure.ac b/preload/configure.ac
index d3e0a84..4036f13 100644
--- a/preload/configure.ac
+++ b/preload/configure.ac
@@ -47,8 +47,7 @@
dnl checks for UNIX variants that set DEFS
-AC_AIX
-AC_MINIX
+AC_USE_SYSTEM_EXTENSIONS
dnl checks for compiler output filename suffixes
