diff --git a/tools/autoconf/Makefile b/tools/autoconf/Makefile
index b9c2f93ff3..a1ce158031 100644
--- a/tools/autoconf/Makefile
+++ b/tools/autoconf/Makefile
@@ -7,18 +7,20 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=autoconf
-PKG_VERSION:=2.69
+PKG_VERSION:=2.71
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/autoconf
-PKG_HASH:=64ebcec9f8ac5b2487125a86a7760d2591ac9e1d3dbd59489633f9de62a57684
+PKG_HASH:=f14c83cfebcc9427f2c3cea7258bd90df972d92eb26752da4ddad81c87a0faa4
 
 include $(INCLUDE_DIR)/host-build.mk
 
 HOST_CONFIGURE_VARS += \
+	EMACS="no" \
 	PERL="/usr/bin/env perl"
 
 define Host/Compile
+	-$(call Host/Compile/Default,--touch install-man1) # disable building of man pages
 	$(call Host/Compile/Default)
 endef
 
diff --git a/tools/autoconf/patches/000-relocatable.patch b/tools/autoconf/patches/000-relocatable.patch
index a935671ce8..a105defd29 100644
--- a/tools/autoconf/patches/000-relocatable.patch
+++ b/tools/autoconf/patches/000-relocatable.patch
@@ -1,7 +1,11 @@
 --- a/bin/autoheader.in
 +++ b/bin/autoheader.in
-@@ -28,7 +28,8 @@ eval 'case $# in 0) exec @PERL@ -S "$0";
+@@ -30,9 +30,12 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
++$^W = 1;
++
  BEGIN
  {
 -  my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@';
@@ -10,33 +14,23 @@
    unshift @INC, "$pkgdatadir";
  
    # Override SHELL.  On DJGPP SHELL may not be set to a shell
-@@ -50,7 +51,7 @@ use strict;
- use vars qw ($config_h %verbatim %symbol);
+@@ -54,7 +57,7 @@ use Autom4te::XFile;
+ our ($config_h, %symbol, %verbatim);
  
  # Lib files.
 -my $autom4te = $ENV{'AUTOM4TE'} || '@bindir@/@autom4te-name@';
 +my $autom4te = $ENV{'AUTOM4TE'} || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autom4te-name@' : '@bindir@/@autom4te-name@');
- local $config_h;
  my $config_h_in;
  my @prepend_include;
+ my @include;
 --- a/bin/autom4te.in
 +++ b/bin/autom4te.in
-@@ -1,10 +1,12 @@
--#! @PERL@ -w
-+#! @PERL@
- # -*- perl -*-
- # @configure_input@
- 
- eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-     if 0;
+@@ -26,9 +26,12 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
 +$^W = 1;
 +
- # autom4te - Wrapper around M4 libraries.
- # Copyright (C) 2001-2003, 2005-2012 Free Software Foundation, Inc.
- 
-@@ -24,7 +26,8 @@ eval 'case $# in 0) exec @PERL@ -S "$0";
- 
  BEGIN
  {
 -  my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@';
@@ -45,8 +39,8 @@
    unshift @INC, $pkgdatadir;
  
    # Override SHELL.  On DJGPP SHELL may not be set to a shell
-@@ -44,7 +47,8 @@ use File::Basename;
- use strict;
+@@ -48,7 +51,8 @@ use Autom4te::General;
+ use Autom4te::XFile;
  
  # Data directory.
 -my $pkgdatadir = $ENV{'AC_MACRODIR'} || '@pkgdatadir@';
@@ -55,7 +49,7 @@
  
  # $LANGUAGE{LANGUAGE} -- Automatic options for LANGUAGE.
  my %language;
-@@ -87,7 +91,7 @@ my @include;
+@@ -91,7 +95,7 @@ my @include;
  my $freeze = 0;
  
  # $M4.
@@ -64,7 +58,7 @@
  # Some non-GNU m4's don't reject the --help option, so give them /dev/null.
  fatal "need GNU m4 1.4 or later: $m4"
    if system "$m4 --help </dev/null 2>&1 | grep reload-state >/dev/null";
-@@ -269,6 +273,12 @@ sub load_configuration ($)
+@@ -272,6 +276,12 @@ sub load_configuration ($)
  
        my @words = shellwords ($_);
        my $type = shift @words;
@@ -79,22 +73,13 @@
  	  fatal "$file:$.: end-language missing for: $lang"
 --- a/bin/autoreconf.in
 +++ b/bin/autoreconf.in
-@@ -1,10 +1,12 @@
--#! @PERL@ -w
-+#! @PERL@
- # -*- perl -*-
- # @configure_input@
- 
- eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-     if 0;
+@@ -29,10 +29,13 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
 +$^W = 1;
 +
- # autoreconf - install the GNU Build System in a directory tree
- # Copyright (C) 1994, 1999-2012 Free Software Foundation, Inc.
- 
-@@ -26,7 +28,8 @@ eval 'case $# in 0) exec @PERL@ -S "$0";
- 
+ my $buildauxdir;
  BEGIN
  {
 -  my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@';
@@ -102,31 +87,25 @@
 +	($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/share/autoconf' : '@pkgdatadir@');
    unshift @INC, $pkgdatadir;
  
-   # Override SHELL.  On DJGPP SHELL may not be set to a shell
-@@ -106,9 +109,9 @@ Written by David J. MacKenzie and Akim D
+   $buildauxdir = $ENV{'autom4te_buildauxdir'} || $pkgdatadir . '/build-aux';
+@@ -117,9 +120,9 @@ Written by David J. MacKenzie and Akim D
  ";
  
  # Lib files.
--my $autoconf   = $ENV{'AUTOCONF'}   || '@bindir@/@autoconf-name@';
--my $autoheader = $ENV{'AUTOHEADER'} || '@bindir@/@autoheader-name@';
--my $autom4te   = $ENV{'AUTOM4TE'}   || '@bindir@/@autom4te-name@';
-+my $autoconf   = $ENV{'AUTOCONF'}   || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autoconf-name@' : '@bindir@/@autoconf-name@');
-+my $autoheader = $ENV{'AUTOHEADER'} || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autoheader-name@' : '@bindir@/@autoheader-name@');
-+my $autom4te   = $ENV{'AUTOM4TE'}   || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autom4te-name@' : '@bindir@/@autom4te-name@');
- my $automake   = $ENV{'AUTOMAKE'}   || 'automake';
- my $aclocal    = $ENV{'ACLOCAL'}    || 'aclocal';
- my $libtoolize = $ENV{'LIBTOOLIZE'} || 'libtoolize';
+-my $autoconf    = $ENV{'AUTOCONF'}    || '@bindir@/@autoconf-name@';
+-my $autoheader  = $ENV{'AUTOHEADER'}  || '@bindir@/@autoheader-name@';
+-my $autom4te    = $ENV{'AUTOM4TE'}    || '@bindir@/@autom4te-name@';
++my $autoconf    = $ENV{'AUTOCONF'}    || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autoconf-name@' : '@bindir@/@autoconf-name@');
++my $autoheader  = $ENV{'AUTOHEADER'}  || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autoheader-name@' : '@bindir@/@autoheader-name@');
++my $autom4te    = $ENV{'AUTOM4TE'}    || ($ENV{'STAGING_DIR_HOST'} ? $ENV{'STAGING_DIR_HOST'} . '/bin/@autom4te-name@' : '@bindir@/@autom4te-name@');
+ my $automake    = $ENV{'AUTOMAKE'}    || 'automake';
+ my $aclocal     = $ENV{'ACLOCAL'}     || 'aclocal';
+ my $libtoolize  = $ENV{'LIBTOOLIZE'}  || 'libtoolize';
 --- a/bin/autoscan.in
 +++ b/bin/autoscan.in
-@@ -1,4 +1,4 @@
--#! @PERL@ -w
-+#! @PERL@
- # -*- perl -*-
- # @configure_input@
- 
-@@ -23,9 +23,12 @@
- eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-     if 0;
+@@ -28,9 +28,12 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
 +$^W = 1;
 +
@@ -138,7 +117,7 @@
    unshift @INC, $pkgdatadir;
  
    # Override SHELL.  On DJGPP SHELL may not be set to a shell
-@@ -91,10 +94,10 @@ my $configure_scan = 'configure.scan';
+@@ -95,10 +98,10 @@ my %needed_macros =
  my $log;
  
  # Autoconf and lib files.
@@ -153,15 +132,9 @@
  # -----
 --- a/bin/autoupdate.in
 +++ b/bin/autoupdate.in
-@@ -1,4 +1,4 @@
--#! @PERL@ -w
-+#! @PERL@
- # -*- perl -*-
- # @configure_input@
- 
-@@ -24,9 +24,12 @@
- eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-     if 0;
+@@ -29,9 +29,12 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
 +$^W = 1;
 +
@@ -173,7 +146,7 @@
    unshift @INC, $pkgdatadir;
  
    # Override SHELL.  On DJGPP SHELL may not be set to a shell
-@@ -50,10 +53,10 @@ my $autom4te = $ENV{'AUTOM4TE'} || '@bin
+@@ -55,10 +58,10 @@ my $autom4te = $ENV{'AUTOM4TE'} || '@bin
  my $autoconf = "$autom4te --language=autoconf";
  # We need to find m4sugar.
  my @prepend_include;
@@ -188,22 +161,12 @@
  # $HELP
 --- a/bin/ifnames.in
 +++ b/bin/ifnames.in
-@@ -1,10 +1,12 @@
--#! @PERL@ -w
-+#! @PERL@
- # -*- perl -*-
- # @configure_input@
- 
- eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-     if 0;
+@@ -33,9 +33,12 @@ use 5.006;
+ use strict;
+ use warnings FATAL => 'all';
  
 +$^W = 1;
 +
- # ifnames - print the identifiers used in C preprocessor conditionals
- 
- # Copyright (C) 1994-1995, 1999-2003, 2005-2012 Free Software
-@@ -31,7 +33,8 @@ eval 'case $# in 0) exec @PERL@ -S "$0";
- 
  BEGIN
  {
 -  my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@';
@@ -214,7 +177,7 @@
    # Override SHELL.  On DJGPP SHELL may not be set to a shell
 --- a/bin/autoconf.as
 +++ b/bin/autoconf.as
-@@ -84,7 +84,11 @@ exit_missing_arg='
+@@ -89,7 +89,11 @@ exit_missing_arg='
  # restore font-lock: '
  
  # Variables.
@@ -224,6 +187,6 @@
 +else
 +	: ${AUTOM4TE='@bindir@/@autom4te-name@'}
 +fi
+ : ${trailer_m4='@pkgdatadir@/autoconf/trailer.m4'}
  autom4te_options=
  outfile=
- verbose=false
diff --git a/tools/autoconf/patches/001-no_emacs_lib.patch b/tools/autoconf/patches/001-no_emacs_lib.patch
deleted file mode 100644
index 35c51642e8..0000000000
--- a/tools/autoconf/patches/001-no_emacs_lib.patch
+++ /dev/null
@@ -1,22 +0,0 @@
---- a/lib/Makefile.am
-+++ b/lib/Makefile.am
-@@ -15,7 +15,7 @@
- # You should have received a copy of the GNU General Public License
- # along with this program.  If not, see <http://www.gnu.org/licenses/>.
- 
--SUBDIRS = Autom4te m4sugar autoconf autotest autoscan emacs
-+SUBDIRS = Autom4te m4sugar autoconf autotest autoscan
- nodist_pkgdata_DATA = autom4te.cfg
- EXTRA_DIST = autom4te.in freeze.mk
- 
---- a/lib/Makefile.in
-+++ b/lib/Makefile.in
-@@ -225,7 +225,7 @@ target_alias = @target_alias@
- top_build_prefix = @top_build_prefix@
- top_builddir = @top_builddir@
- top_srcdir = @top_srcdir@
--SUBDIRS = Autom4te m4sugar autoconf autotest autoscan emacs
-+SUBDIRS = Autom4te m4sugar autoconf autotest autoscan
- nodist_pkgdata_DATA = autom4te.cfg
- EXTRA_DIST = autom4te.in freeze.mk
- edit = sed \
diff --git a/tools/autoconf/patches/002-musl_host_fixup.patch b/tools/autoconf/patches/002-musl_host_fixup.patch
deleted file mode 100644
index 4dcb1ec3c1..0000000000
--- a/tools/autoconf/patches/002-musl_host_fixup.patch
+++ /dev/null
@@ -1,24 +0,0 @@
---- a/build-aux/config.sub
-+++ b/build-aux/config.sub
-@@ -122,9 +122,9 @@ esac
- # Here we must recognize all the valid KERNEL-OS combinations.
- maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
- case $maybe_os in
--  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
--  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
--  knetbsd*-gnu* | netbsd*-gnu* | \
-+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-musl* | \
-+  linux-newlib* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | \
-+  kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
-   kopensolaris*-gnu* | \
-   storm-chaos* | os2-emx* | rtmk-nova*)
-     os=-$maybe_os
-@@ -1360,7 +1360,7 @@ case $os in
- 	      | -chorusos* | -chorusrdb* | -cegcc* \
- 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- 	      | -mingw32* | -linux-gnu* | -linux-android* \
--	      | -linux-newlib* | -linux-uclibc* \
-+	      | -linux-musl* | -linux-newlib* | -linux-uclibc* \
- 	      | -uxpv* | -beos* | -mpeix* | -udk* \
- 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
- 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \