Index: t/38-mysql-producer.t
===================================================================
--- t/38-mysql-producer.t	(revision 1327)
+++ t/38-mysql-producer.t	(working copy)
@@ -19,7 +19,7 @@
 #=============================================================================
 
 BEGIN {
-    maybe_plan(11,
+    maybe_plan(46,
         'YAML',
         'SQL::Translator::Producer::MySQL',
         'Test::Differences',
@@ -67,6 +67,10 @@
             mysql_charset: utf8
             mysql_collate: utf8_general_ci
           order: 3
+        some_flag:
+          name: some_flag
+          data_type: boolean
+          order: 4
       constraints:
         - type: UNIQUE
           fields:
@@ -109,7 +113,7 @@
 
 EOSCHEMA
 
-my @stmts = (
+my @stmts_pristine = (
 "SET foreign_key_checks=0;\n\n",
 
 "DROP TABLE IF EXISTS `thing`;\n",
@@ -118,6 +122,7 @@
   `name` varchar(32),
   `swedish_name` varchar(32) CHARACTER SET swe7,
   `description` text CHARACTER SET utf8 COLLATE utf8_general_ci,
+  `some_flag` boolean,
   PRIMARY KEY (`id`),
   UNIQUE `idx_unique_name` (`name`)
 ) Type=InnoDB DEFAULT CHARACTER SET latin1 COLLATE latin1_danish_ci;\n\n",
@@ -136,55 +141,82 @@
 
 "SET foreign_key_checks=1;\n\n"
 
+    );
+    
+my @stmts_no_drop_pristine = grep {$_ !~ /^DROP TABLE/} @stmts_pristine;
+my $mysql_out_pristine = join("", @stmts_no_drop_pristine);
+
+# check translation with several mysql server versions
+my %server_versions = (
+  0    => [ sub { $_[0] =~ s/ boolean/ enum('0','1')/g } ],
+  3.23 => [ sub { $_[0] =~ s/ boolean/ tinyint/g } ],
+  4.0  => [ sub { $_[0] =~ s/ boolean/ tinyint/g } ],
+  4.1  => [],
+  5.0  => [],
+  5.1  => [],
 );
 
-my @stmts_no_drop = grep {$_ !~ /^DROP TABLE/} @stmts;
-
-my $mysql_out = join("", @stmts_no_drop);
-
-
+foreach my $server_version (sort keys %server_versions) {
+    my @stmts = @stmts_pristine;
+    my @stmts_no_drop = @stmts_no_drop_pristine;
+    my $mysql_out = $mysql_out_pristine;
+    
+    my $version_tweaks = $server_versions{$server_version};
+    foreach my $tweak (@$version_tweaks) {
+      $tweak->($mysql_out);
+      foreach my $stmt (@stmts, @stmts_no_drop) {
+          $tweak->($stmt);
+      }
+    }
+    
     my $sqlt;
     $sqlt = SQL::Translator->new(
         show_warnings  => 1,
         no_comments    => 1,
-#        debug          => 1,
+        # debug          => 1,
         from           => "YAML",
         to             => "MySQL",
         quote_table_names => 1,
-        quote_field_names => 1
+        quote_field_names => 1,
+        producer_args => {
+            mysql_server_version => $server_version,
+        },
     );
-
+    
     my $out = $sqlt->translate(\$yaml_in)
     or die "Translate error:".$sqlt->error;
     ok $out ne "",                    "Produced something!";
-    eq_or_diff $out, $mysql_out,      "Scalar output looks right with quoting";
-
+    eq_or_diff $out, $mysql_out,      "Scalar output looks right with quoting ($server_version)";
+    
     my @out = $sqlt->translate(\$yaml_in)
       or die "Translat eerror:".$sqlt->error;
-    is_deeply \@out, \@stmts_no_drop, "Array output looks right with quoting";
-
-
+    is_deeply \@out, \@stmts_no_drop, "Array output looks right with quoting ($server_version)";
+    
+    
     @{$sqlt}{qw/quote_table_names quote_field_names/} = (0,0);
     $out = $sqlt->translate(\$yaml_in)
       or die "Translat eerror:".$sqlt->error;
-
+    
     @out = $sqlt->translate(\$yaml_in)
       or die "Translat eerror:".$sqlt->error;
     $mysql_out =~ s/`//g;
     my @unquoted_stmts = map { s/`//g; $_} @stmts_no_drop;
-    eq_or_diff $out, $mysql_out,       "Output looks right without quoting";
-    is_deeply \@out, \@unquoted_stmts, "Array output looks right without quoting";
-
+    eq_or_diff $out, $mysql_out,       "Output looks right without quoting ($server_version)";
+    is_deeply \@out, \@unquoted_stmts, "Array output looks right without quoting ($server_version)";
+    
     @{$sqlt}{qw/add_drop_table quote_field_names quote_table_names/} = (1,1,1);
     @out = $sqlt->translate(\$yaml_in)
       or die "Translat eerror:".$sqlt->error;
     $out = $sqlt->translate(\$yaml_in)
       or die "Translat eerror:".$sqlt->error;
-
-    eq_or_diff $out, join("", @stmts), "Output looks right with DROP TABLEs";
-    is_deeply \@out, \@stmts,          "Array output looks right with DROP TABLEs";
+    
+    eq_or_diff $out, join("", @stmts), "Output looks right with DROP TABLEs ($server_version)";
+    is_deeply \@out, \@stmts,          "Array output looks right with DROP TABLEs ($server_version)";
 }
 
+
+} # ends main test
+
 ###############################################################################
 # New alter/add subs
 
Index: lib/SQL/Translator/Producer/MySQL.pm
===================================================================
--- lib/SQL/Translator/Producer/MySQL.pm	(revision 1327)
+++ lib/SQL/Translator/Producer/MySQL.pm	(working copy)
@@ -86,6 +86,12 @@
 
 Set the fields charater set and collation order.
 
+=item args.mysql_server_version
+
+Specifies which version of MySQL server we are targetting.
+
+Use a value like 4.0, 4.1, 5.0 or 5.1.
+
 =back
 
 =cut
@@ -136,6 +142,8 @@
     my $add_drop_table = $translator->add_drop_table;
     my $schema         = $translator->schema;
     my $show_warnings  = $translator->show_warnings || 0;
+    my $producer_args  = $translator->producer_args;
+    my $server_version = $producer_args->{mysql_server_version};
 
     my ($qt, $qf) = ('','');
     $qt = '`' if $translator->quote_table_names;
@@ -172,7 +180,8 @@
                                          show_warnings     => $show_warnings,
                                          no_comments       => $no_comments,
                                          quote_table_names => $qt,
-                                         quote_field_names => $qf
+                                         quote_field_names => $qf,
+                                         server_version    => $server_version,
                                          });
     }
 
@@ -283,6 +292,7 @@
     my ($field, $options) = @_;
 
     my $qf = $options->{quote_field_names} ||= '';
+    my $server_version = $options->{server_version};
 
     my $field_name = $field->name;
     debug("PKG: Looking at field '$field_name'\n");
@@ -326,10 +336,16 @@
     elsif ( $data_type =~ /char/i && ! $size[0] ) {
         @size = (255);
     }
-    elsif ( $data_type =~ /boolean/i ) {
+    elsif ( $data_type =~ /boolean/i && !$server_version) {
+        # Compatible output to versions of Producer::MySQL <= 1.54
         $data_type = 'enum';
         $commalist = "'0','1'";
     }
+    elsif ( $data_type =~ /boolean/i && $server_version && $server_version < 4.1) {
+        # Boolean was introduced in mysql 4.1.0 so use tinyint if
+        # target is older
+        $data_type = 'tinyint';
+    }
     elsif ( exists $translate{ lc $data_type } ) {
         $data_type = $translate{ lc $data_type };
     }
Index: bin/sqlt
===================================================================
--- bin/sqlt	(revision 1327)
+++ bin/sqlt	(working copy)
@@ -116,6 +116,10 @@
 
     --package          Base package name for Class::DBI modules.
 
+  MySQL Parser Options:
+  
+    --mysql-server-version=value Version of MySQL server (eg. 4.1 or 5.0)
+
 =head1 DESCRIPTION
 
 This script is part of the SQL Fairy project.  It will try to convert
@@ -184,6 +188,7 @@
 my $producer_dsn;     # db_user "
 my $add_truncate;
 my $mysql_parser_version;  # MySQL parser arg for /*! comments
+my $mysql_server_version;
 
 GetOptions(
     'add-drop-table'   => \$add_drop_table,
@@ -226,6 +231,7 @@
     'use-same-auth'    => \$use_same_auth,
     'version'          => \$show_version,
     'mysql-parser-version=i' => \$mysql_parser_version,
+    'mysql-server-version=f' => \$mysql_server_version,
 ) or pod2usage(2);
 
 if ($use_same_auth) {
@@ -272,24 +278,25 @@
         mysql_parser_version => $mysql_parser_version,
     },
     producer_args   => {
-        imap_file        => $imap_file,
-        imap_url         => $imap_url,
-        pretty           => $pretty,
-        ttfile           => $template,
-        tt_vars          => \%tt_vars,
-        tt_conf          => \%tt_conf,
-        title            => $title,
-        dsn              => $producer_dsn,
-        db_user          => $producer_db_user,
-        db_password      => $producer_db_password,
-        skip             => $skip,
-        skiplike         => $skiplike,
-        add_truncate     => $add_truncate,
-        add_prefix       => $add_prefix,
-        prefix           => $prefix,
-        indent           => $indent,
-        newlines         => $newlines,
-	    package_name     => $package_name,
+        imap_file            => $imap_file,
+        imap_url             => $imap_url,
+        pretty               => $pretty,
+        ttfile               => $template,
+        tt_vars              => \%tt_vars,
+        tt_conf              => \%tt_conf,
+        title                => $title,
+        dsn                  => $producer_dsn,
+        db_user              => $producer_db_user,
+        db_password          => $producer_db_password,
+        skip                 => $skip,
+        skiplike             => $skiplike,
+        add_truncate         => $add_truncate,
+        add_prefix           => $add_prefix,
+        prefix               => $prefix,
+        indent               => $indent,
+        newlines             => $newlines,
+	    package_name         => $package_name,
+	    mysql_server_version => $mysql_server_version,
     },
 );
 
