diff --git a/Configurations/descrip.mms.tmpl b/Configurations/descrip.mms.tmpl
index f6061f16f724af2871ff42fa554429f44d774a11..029ba577221faf5c8a763d168fa68abc3246e95b 100644
--- a/Configurations/descrip.mms.tmpl
+++ b/Configurations/descrip.mms.tmpl
@@ -59,7 +59,7 @@
                        grep { defined $unified_info{generate}->{$_} }
                        map { @{$unified_info{sources}->{$_}} }
                        grep { /\.o$/ } keys %{$unified_info{sources}} ),
-                     ( grep { /\.h$/ } keys %{$unified_info{generate}} ) );
+                     ( grep { /\.(?:h|opt)$/ } keys %{$unified_info{generate}} ) );
 
   # This is a horrible hack, but is needed because recursive inclusion of files
   # in different directories does not work well with HP C.
diff --git a/Configurations/unix-Makefile.tmpl b/Configurations/unix-Makefile.tmpl
index caf2783b395df4193ec343a2131309413ff8bfeb..62fd5e7a6ac51f95b6d23c372d3dc220643fa353 100644
--- a/Configurations/unix-Makefile.tmpl
+++ b/Configurations/unix-Makefile.tmpl
@@ -111,7 +111,7 @@ GENERATED={- join(" ",
                   ( grep { defined $unified_info{generate}->{$_} }
                     map { @{$unified_info{sources}->{$_}} }
                     grep { /\.(?:o|res)$/ } keys %{$unified_info{sources}} ),
-                  ( grep { /\.h$/ } keys %{$unified_info{generate}} )) -}
+                  ( grep { /\.(?:h|map|def)$/ } keys %{$unified_info{generate}} )) -}
 
 INSTALL_LIBS={- join(" ", map { lib($_) } @{$unified_info{install}->{libraries}}) -}
 INSTALL_SHLIBS={- join(" ", map { shlib($_) } @{$unified_info{install}->{libraries}}) -}
diff --git a/Configurations/windows-makefile.tmpl b/Configurations/windows-makefile.tmpl
index e9179a4477c22268c82db4b70f79fb275c48fd88..5d767f72aa06496fa4e17d8d096ef7cd00f12d08 100644
--- a/Configurations/windows-makefile.tmpl
+++ b/Configurations/windows-makefile.tmpl
@@ -93,7 +93,7 @@ GENERATED={- join(" ",
                     grep { defined $unified_info{generate}->{$_} }
                     map { @{$unified_info{sources}->{$_}} }
                     grep { /\.o$/ } keys %{$unified_info{sources}} ),
-                  ( grep { /\.h$/ } keys %{$unified_info{generate}} )) -}
+                  ( grep { /\.(?:h|def)$/ } keys %{$unified_info{generate}} )) -}
 
 INSTALL_LIBS={- join(" ", map { lib($_) } @{$unified_info{install}->{libraries}}) -}
 INSTALL_SHLIBS={- join(" ", map { shlib($_) } @{$unified_info{install}->{libraries}}) -}