diff --git a/Configurations/descrip.mms.tmpl b/Configurations/descrip.mms.tmpl
index ef59d425e..157ebb5d3 100644
--- a/Configurations/descrip.mms.tmpl
+++ b/Configurations/descrip.mms.tmpl
@@ -407,6 +407,21 @@ configdata.pm : {- join(" ", sourcefile("Configurations", "descrip.mms.tmpl"), s
 {-
   use File::Basename;
   use File::Spec::Functions qw/abs2rel rel2abs catfile catdir/;
+
+  sub generatesrc {
+      my %args = @_;
+      my $generator = join(" ", @{$args{generator}});
+
+      if ($args{src} !~ /\.[sS]$/) {
+          return <<"EOF";
+$args{src} : $args{generator}->[0]
+	\$(PERL) $generator > \$@
+EOF
+      } else {
+          die "No method to generate assembler source present.\n";
+      }
+  }
+
   sub src2obj {
       my %args = @_;
       my $obj = $args{obj};
diff --git a/Configurations/unix-Makefile.tmpl b/Configurations/unix-Makefile.tmpl
index 50dafd284..226f5bdfa 100644
--- a/Configurations/unix-Makefile.tmpl
+++ b/Configurations/unix-Makefile.tmpl
@@ -816,6 +816,43 @@ configdata.pm: {- $config{build_file_template} -} $(SRCDIR)/Configurations/commo
       return map { shlib_simple($_) } @_;
   }
 
+  sub generatesrc {
+      my %args = @_;
+      my $generator = join(" ", @{$args{generator}});
+
+      if ($args{src} !~ /\.[sS]$/) {
+          return <<"EOF";
+$args{src}: $args{generator}->[0]
+	\$(PERL) $generator > \$@
+EOF
+      } else {
+          if ($args{generator}->[0] =~ /\.[sS]$/) {
+              return <<"EOF";
+$args{src}: $args{generator}->[0]
+	\$(CC) \$(CFLAGS) -E \$< > \$@
+EOF
+          } elsif ($args{generator}->[0] =~ /\.pl$/) {
+             return <<"EOF";
+$args{src}: $args{generator}->[0]
+	( trap "rm -f \$@.S" INT; \\
+	  CC="\$(CC)" \$(PERL) $generator \$@.S; \\
+	  if grep '^#' \$@.S >/dev/null; then \\
+	      \$(CC) -E -P \$@.S > \$@ && rm -f \$@.S; \\
+	  else \\
+	      mv \$@.S \$@; \\
+	  fi )
+EOF
+          } elsif ($args{generator}->[0] =~ /\.m4$/) {
+              return <<"EOF";
+$args{src}: $args{generator}->[0]
+	m4 -B 8192 $generator > \$@
+EOF
+          } else {
+              die "Generator type for $args{src} unknown: $args{generator}\n";
+          }
+      }
+  }
+
   sub src2obj {
       my %args = @_;
       my $obj = $args{obj};