make fetch yet again

6 files changed, 46 insertions, 59 deletions

diff --git a/build-aux/config.guess b/build-aux/config.guess
index 9aff91cf..8d70ec2b 100755
--- a/build-aux/config.guess
+++ b/build-aux/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2020 Free Software Foundation, Inc.
 
-timestamp='2020-08-17'
+timestamp='2020-09-19'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -150,17 +150,15 @@ Linux|GNU|GNU/*)
 	#elif defined(__dietlibc__)
 	LIBC=dietlibc
 	#else
+	#include <stdarg.h>
+	#ifdef __DEFINED_va_list
+	LIBC=musl
+	#else
 	LIBC=gnu
 	#endif
+	#endif
 	EOF
 	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
-
-	# If ldd exists, use it to detect musl libc.
-	if command -v ldd >/dev/null && \
-		ldd --version 2>&1 | grep -q ^musl
-	then
-	    LIBC=musl
-	fi
 	;;
 esac
 
diff --git a/lib/Autom4te/Channels.pm b/lib/Autom4te/Channels.pm
index 279370d2..83090e86 100644
--- a/lib/Autom4te/Channels.pm
+++ b/lib/Autom4te/Channels.pm
@@ -74,19 +74,19 @@ use Carp;
 use Exporter;
 use File::Basename;
 
-use vars qw (@EXPORT @ISA %channels $me);
-@ISA = qw (Exporter);
-@EXPORT = qw ($exit_code $warnings_are_errors
-	      &reset_local_duplicates &reset_global_duplicates
-	      &register_channel &msg &exists_channel &channel_type
-	      &setup_channel &setup_channel_type
-	      &dup_channel_setup &drop_channel_setup
-	      &buffer_messages &flush_messages
-	      &setup_channel_queue &pop_channel_queue
-	      US_GLOBAL US_LOCAL
-	      UP_NONE UP_TEXT UP_LOC_TEXT);
-
-$me = basename $0;
+our @ISA = qw (Exporter);
+our @EXPORT = qw ($exit_code $warnings_are_errors
+		  &reset_local_duplicates &reset_global_duplicates
+		  &register_channel &msg &exists_channel &channel_type
+		  &setup_channel &setup_channel_type
+		  &dup_channel_setup &drop_channel_setup
+		  &buffer_messages &flush_messages
+		  &setup_channel_queue &pop_channel_queue
+		  US_GLOBAL US_LOCAL
+		  UP_NONE UP_TEXT UP_LOC_TEXT);
+
+our %channels;
+our $me = basename $0;
 
 =head2 Global Variables
 
@@ -99,8 +99,7 @@ the C<exit_code> options of C<fatal> and C<error> channels.
 
 =cut
 
-use vars qw ($exit_code);
-$exit_code = 0;
+our $exit_code = 0;
 
 =item C<$warnings_are_errors>
 
@@ -109,8 +108,7 @@ errors (i.e. if they should update C<$exit_code>).
 
 =cut
 
-use vars qw ($warnings_are_errors);
-$warnings_are_errors = 0;
+our $warnings_are_errors = 0;
 
 =back
 
@@ -260,11 +258,8 @@ be ignored.
 
 =cut
 
-use vars qw (%_default_options %_global_duplicate_messages
-	     %_local_duplicate_messages);
-
 # Default options for a channel.
-%_default_options =
+our %_default_options =
   (
    type => 'warning',
    exit_code => 1,
@@ -284,8 +279,8 @@ use vars qw (%_default_options %_global_duplicate_messages
 # Filled with output messages as keys, to detect duplicates.
 # The value associated with each key is the number of occurrences
 # filtered out.
-%_local_duplicate_messages = ();
-%_global_duplicate_messages = ();
+our %_local_duplicate_messages = ();
+our %_global_duplicate_messages = ();
 
 sub _reset_duplicates (\%)
 {
@@ -404,8 +399,7 @@ sub _format_sub_message ($$)
 }
 
 # Store partial messages here. (See the 'partial' option.)
-use vars qw ($partial);
-$partial = '';
+our $partial = '';
 
 # _format_message ($LOCATION, $MESSAGE, %OPTIONS)
 # -----------------------------------------------
@@ -620,11 +614,9 @@ both print
 =cut
 
 
-use vars qw (@backlog %buffering);
-
 # See buffer_messages() and flush_messages() below.
-%buffering = ();	# The map of channel types to buffer.
-@backlog = ();		# The buffer of messages.
+our %buffering = ();	# The map of channel types to buffer.
+our @backlog = ();		# The buffer of messages.
 
 sub msg ($$;$%)
 {
@@ -716,9 +708,8 @@ entry, while C<drop_channel_setup ()> just deletes it.
 
 =cut
 
-use vars qw (@_saved_channels @_saved_werrors);
-@_saved_channels = ();
-@_saved_werrors = ();
+our @_saved_channels = ();
+our @_saved_werrors = ();
 
 sub dup_channel_setup ()
 {
diff --git a/lib/Autom4te/Configure_ac.pm b/lib/Autom4te/Configure_ac.pm
index d3f095d5..78b161bc 100644
--- a/lib/Autom4te/Configure_ac.pm
+++ b/lib/Autom4te/Configure_ac.pm
@@ -29,9 +29,8 @@ use Exporter;
 use Autom4te::ChannelDefs;
 use Autom4te::Channels;
 
-use vars qw (@EXPORT @ISA);
-@ISA = qw (Exporter);
-@EXPORT = qw (&find_configure_ac &require_configure_ac);
+our @ISA = qw (Exporter);
+our @EXPORT = qw (&find_configure_ac &require_configure_ac);
 
 =head1 NAME
 
diff --git a/lib/Autom4te/FileUtils.pm b/lib/Autom4te/FileUtils.pm
index fcdf48e6..a182031b 100644
--- a/lib/Autom4te/FileUtils.pm
+++ b/lib/Autom4te/FileUtils.pm
@@ -45,14 +45,13 @@ use IO::File;
 use Autom4te::Channels;
 use Autom4te::ChannelDefs;
 
-use vars qw (@EXPORT @ISA);
-@ISA = qw (Exporter);
-@EXPORT = qw (&contents
-	      &find_file &mtime
-	      &update_file
-	      &xsystem &xsystem_hint &xqx
-	      &dir_has_case_matching_file &reset_dir_cache
-	      &set_dir_cache_file);
+our @ISA = qw (Exporter);
+our @EXPORT = qw (&contents
+		  &find_file &mtime
+		  &update_file
+		  &xsystem &xsystem_hint &xqx
+		  &dir_has_case_matching_file &reset_dir_cache
+		  &set_dir_cache_file);
 
 =over 4
 
@@ -332,7 +331,7 @@ same file).
 
 =cut
 
-use vars '%_directory_cache';
+our %_directory_cache;
 sub dir_has_case_matching_file ($$)
 {
   # Note that print File::Spec->case_tolerant returns 0 even on MacOS
@@ -383,4 +382,6 @@ sub set_dir_cache_file ($$)
 
 =back
 
+=cut
+
 1; # for require
diff --git a/lib/Autom4te/Getopt.pm b/lib/Autom4te/Getopt.pm
index f70a5c58..c32c2cce 100644
--- a/lib/Autom4te/Getopt.pm
+++ b/lib/Autom4te/Getopt.pm
@@ -40,9 +40,8 @@ use Getopt::Long ();
 
 use Autom4te::ChannelDefs qw (fatal);
 
-use vars qw (@EXPORT @ISA);
-@ISA = qw (Exporter);
-@EXPORT = qw (getopt);
+our @ISA = qw (Exporter);
+our @EXPORT = qw (getopt);
 
 =item C<parse_options (%option)>
 
diff --git a/lib/Autom4te/XFile.pm b/lib/Autom4te/XFile.pm
index 143b8b43..fcc0e68b 100644
--- a/lib/Autom4te/XFile.pm
+++ b/lib/Autom4te/XFile.pm
@@ -81,10 +81,9 @@ use Autom4te::ChannelDefs;
 use Autom4te::Channels qw (msg);
 use Autom4te::FileUtils;
 
-use vars qw ($AUTOLOAD @EXPORT @EXPORT_OK @ISA $VERSION);
-@ISA = qw(Exporter IO::File);
-@EXPORT = @IO::File::EXPORT;
-$VERSION = "1.2";
+our @ISA = qw(Exporter IO::File);
+our @EXPORT = @IO::File::EXPORT;
+our $VERSION = "1.2";
 
 eval {
   # Make all Fcntl O_XXX and LOCK_XXX constants available for importing