diff -urN a/debbuild b/debbuild
--- a/debbuild	2022-02-21 18:16:40.744711483 +0300
+++ b/debbuild	2022-02-21 18:36:10.249542683 +0300
@@ -193,6 +193,10 @@
 }
 
 if ($cmdopts{type} eq 'b') {
+  # Make a copy of spec lowercased and `_` replaced with `-` to do some magic
+  (my $spec_lc = lc(basename($specglobals{specfile}))) =~ tr/_/-/;
+  $spec_lc = dirname($specglobals{specfile})."/".$spec_lc;
+  qx ( $specglobals{__cp} -a $specglobals{specfile} $spec_lc ) if ( $specglobals{specfile} ne $spec_lc );
   # Need to read the spec file to find the tarball.  Note that
   # this also generates most of the shell script required.
   parse_spec($specglobals{specfile});
@@ -306,18 +310,36 @@
 sub load_config {
   # Load user configuration, permitting local override
   my $homedir = $ENV{HOME} // $ENV{LOGDIR} // (getpwuid($<))[7];
-  foreach my $macros ( ("$static_config{debconfigdir}/macros",
-                        glob("$static_config{debconfigdir}/macros.d/macros.*"),
-                        "$static_config{sysconfdir}/debbuild/macros",
-                        glob("$static_config{sysconfdir}/debbuild/macros.*"),
-                        "$homedir/.debmacros") ) {
+  vdebug("Loading ...", 3, "load_config");
+  my @cfgs = ("$static_config{debconfigdir}/macros",
+              glob("$static_config{debconfigdir}/macros.d/macros.*"),
+              "$static_config{sysconfdir}/rpm/macros",
+              glob("$static_config{sysconfdir}/rpm/macros.*"),
+              "$static_config{sysconfdir}/debbuild/macros",
+              glob("$static_config{sysconfdir}/debbuild/macros.*"),
+              "$homedir/.rpmmacros",
+              "$homedir/.debmacros");
+  my %cfl = ();
+  my %ercd = ();
+  while ( my $macros = shift @cfgs ) {
+    next if $cfl{$macros} and not ( $macros eq "$homedir/.debmacros" or $macros eq "$homedir/.rpmmacros" );
     open my $MACROS,$macros or next; # should we warn about missing macro files?
+    vdebug("Loading $macros ...", 3, "load_config");
     while (<$MACROS>) {
       next unless my ($macro,$eq,$value) = /^%(\w+(?:\([^)]*\))?)(=|\s*)(.+)$/s;
       $value = read_multiline_macro($value, $MACROS);
       chomp($value);
+      vdebug("($macros): $macro = $value", 5, "load_config");
       store_value('define', $macro, $eq eq '=' ? $specglobals{$value} : $value);
+      if ( $macro eq '_rpmconfigdir' and not $ercd{$macros} ) {
+        $ercd{$macros} = 1;
+        unshift @cfgs, expandmacros($value)."/macros",
+                       glob(expandmacros($value)."/macros.d/macros.*");
+        push @cfgs, "$homedir/.rpmmacros", "$homedir/.debmacros"
+           if $macros eq "$homedir/.debmacros" or $macros eq "$homedir/.rpmmacros";
+      }
     }
+    $cfl{$macros} = 1;
     close $MACROS;
   }
 } # end load_config()
@@ -1603,6 +1625,7 @@
       qx($specglobals{__du} -s --apparent-size $specglobals{buildroot}/$pkg) =~
         /(\d+)/;
 
+    my $maintainer = defined $pkgdata{main}{packager} ? $pkgdata{main}{packager} : expandmacros('%{_deb_maintainer}');
     my $control = "Package: $pkgdata{$pkg}{name}\n".
                   'Version: '.format_version($pkg)."\n".
                 ( defined $pkgdata{$pkg}{group} ?
@@ -1610,8 +1633,8 @@
                   "Priority: optional\n".
                   "Architecture: $pkgdata{$pkg}{arch}\n".
                   "Installed-Size: $installedsize\n".
-               ( defined $pkgdata{main}{packager} ?
-                 "Maintainer: $pkgdata{main}{packager}\n" : '' ).
+                ( $maintainer ?
+                  "Maintainer: $maintainer\n" : '' ).
                   "Description: $pkgdata{$pkg}{summary}\n$pkgdata{$pkg}{description}\n".
                 ( defined $pkgdata{main}{url} ?
                   "Homepage: $pkgdata{main}{url}\n" : '' );
@@ -1764,6 +1787,16 @@
 
   $pkg = unify_pkg_name($pkg);
 
+  # Fix strict version checking by including release and epoch in case of specifying the packages currently building
+  if ( $rel eq '=' ) {
+    foreach my $p ( keys(%pkgdata) ) {
+      if ( $ver eq $pkgdata{main}{version} ) {
+        $ver = (defined $pkgdata{main}{epoch} ? "$pkgdata{main}{epoch}:" : '').$ver."-".$pkgdata{main}{release};
+        last;
+      }
+    }
+  }
+
   return ($pkg,$rel,$ver);
 } # end splitver()