diff --git a/README.md b/README.md
index c5a22b2..66df7f0 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,6 @@
 # libgdl
 
 This package contains components and libraries that are intended to be shared between GNOME development tools, including gnome-debug, gnome-build, and anjuta2.
-
 The current pieces of GDL include:
  - A symbol browser bonobo component (symbol-browser-control).
  - A docking widget (gdl).
diff --git a/libgdl.spec b/libgdl.spec
index 8c39c31..0f4174c 100644
--- a/libgdl.spec
+++ b/libgdl.spec
@@ -1,52 +1,40 @@
 %define        majver %(echo %version | cut -d. -f 1-2)
 Name:          libgdl
-Version:       3.34.0
+Version:       3.40.0
 Release:       1mamba
 Summary:       Gnome Devtool Libraries - development components
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.gnome.org
-Source:        http://ftp.gnome.org/pub/GNOME/sources/gdl/%{majver}/gdl-%{version}.tar.xz
+URL:           https://www.gnome.org/
+Source:        https://download.gnome.org/sources/gdl/%{majver}/gdl-%{version}.tar.xz
 Patch0:        libgdl-3.26.0-Convert-Latin-1-encoded-characters-to-UTF-8.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
+#libdl.so.2()(64bit): /usr/lib64/libdl.so: file not owned by any package
 BuildRequires: glibc-devel
 BuildRequires: libatk-devel
+BuildRequires: libbrotli-devel
 BuildRequires: libbzip2-devel
 BuildRequires: libcairo-devel
-BuildRequires: libelf-devel
-BuildRequires: libexpat-devel
-BuildRequires: libffi-devel
-BuildRequires: libfontconfig-devel
 BuildRequires: libfreetype-devel
 BuildRequires: libgdk-pixbuf-devel
-BuildRequires: libGL-devel
 BuildRequires: libglib-devel
-BuildRequires: libgtk-devel
+BuildRequires: libgraphite2-devel
+BuildRequires: libgtk3-devel
+BuildRequires: libharfbuzz-devel
+BuildRequires: liblzma-devel
 BuildRequires: libpango-devel
-BuildRequires: libpixman-devel
-BuildRequires: libpng14-devel
-BuildRequires: libpthread-stubs-devel
-BuildRequires: libselinux-devel
-BuildRequires: libstdc++6-devel
-BuildRequires: libX11-devel
-BuildRequires: libXau-devel
-BuildRequires: libxcb-devel
-BuildRequires: libXdmcp-devel
+BuildRequires: libpcre-devel
+BuildRequires: libpng-devel
 BuildRequires: libxml2-devel
-BuildRequires: libXrender-devel
 BuildRequires: libz-devel
-BuildRequires: pkg-config
-BuildRequires: udev-devel
 ## AUTOBUILDREQ-END
 BuildRequires: perl-XML-Parser
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 This package contains components and libraries that are intended to be shared between GNOME development tools, including gnome-debug, gnome-build, and anjuta2.
-
 The current pieces of GDL include:
  - A symbol browser bonobo component (symbol-browser-control).
  - A docking widget (gdl).
@@ -59,14 +47,13 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description devel
 This package contains components and libraries that are intended to be shared between GNOME development tools, including gnome-debug, gnome-build, and anjuta2.
-
 The current pieces of GDL include:
  - A symbol browser bonobo component (symbol-browser-control).
  - A docking widget (gdl).
  - A utility library that also contains the stubs and skels for
    the symbol browser and text editor components (gdl, idl).
 
-This package contains libraries and header files need for development.
+This package contains libraries and header files needed for development.
 
 %package static
 Group:         Development/Libraries
@@ -75,13 +62,14 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description static
 This package contains components and libraries that are intended to be shared between GNOME development tools, including gnome-debug, gnome-build, and anjuta2.
-
 The current pieces of GDL include:
  - A symbol browser bonobo component (symbol-browser-control).
  - A docking widget (gdl).
  - A utility library that also contains the stubs and skels for the symbol browser and text editor components (gdl, idl).
 
-This package contains static libraries need for development.
+This package contains static libraries needed for development.
+
+%debug_package
 
 %prep
 %setup -q -n gdl-%{version}
@@ -117,7 +105,7 @@ This package contains static libraries need for development.
 %{_libdir}/libgdl-3.so
 %{_datadir}/gir-1.0/Gdl-3.gir
 %dir %{_datadir}/gtk-doc/html/gdl-3.0
-#%{_datadir}/gtk-doc/html/gdl-3.0/gdl-3.0.devhelp2
+%{_datadir}/gtk-doc/html/gdl-3.0/gdl-3.0.devhelp2
 %{_datadir}/gtk-doc/html/gdl-3.0/*.html
 %{_datadir}/gtk-doc/html/gdl-3.0/*.css
 %{_datadir}/gtk-doc/html/gdl-3.0/*.png
@@ -129,6 +117,9 @@ This package contains static libraries need for development.
 #%{_libdir}/*.a
 
 %changelog
+* Sat Aug 28 2021 Automatic Build System <autodist@mambasoft.it> 3.40.0-1mamba
+- automatic version update by autodist
+
 * Wed Sep 11 2019 Automatic Build System <autodist@mambasoft.it> 3.34.0-1mamba
 - automatic version update by autodist