libgtk2: bump to version 2.22.0 and undeprecate Gtk/DirectFB

Finally, we bump Gtk from the old and ancient 2.12 version to the
latest 2.22.0 version currently available.

The DirectFB support is Gtk 2.22 compiles again thanks to the work of
Lionel Landwerlin (it was broken in every Gtk version between 2.12 and
2.20). Therefore, Gtk on DirectFB is no longer marked as deprecated.

In addition to this, we :

 * Upgrade the "reduce-dependencies" patch

 * Remove the "configure" and "no-tests" patches which do not seem to
   be useful anymore

 * Add a libtool patch

We also remove references to a non-existant 2.15 gtk version in
libgtk2.mk.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 168 insertions, 0 deletions

diff --git a/package/libgtk2/host-libgtk2-2.20.1-reduce-dependencies.patch b/package/libgtk2/host-libgtk2-2.20.1-reduce-dependencies.patch
new file mode 100644
index 000000000..49acf753e
--- /dev/null
+++ b/package/libgtk2/host-libgtk2-2.20.1-reduce-dependencies.patch
@@ -0,0 +1,168 @@
+Hack the configure.in file to add a "none" gdktarget which removes
+dependencies on graphic backends such as X.org or DirectFB. Gtk does
+not fully build in this mode, but it builds sufficiently to build the
+host tools that are needed to build the target Gtk.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ configure.in |  101 ++---------------------------------------------------------
+ 1 file changed, 4 insertions(+), 97 deletions(-)
+
+Index: gtk+-2.22.0/configure.in
+===================================================================
+--- gtk+-2.22.0.orig/configure.in
++++ gtk+-2.22.0/configure.in
+@@ -258,12 +258,12 @@
+   gdktarget=x11
+ fi
+ 
+-AC_ARG_WITH(gdktarget, [  --with-gdktarget=[[x11/win32/quartz/directfb]] select non-default GDK target],
++AC_ARG_WITH(gdktarget, [  --with-gdktarget=[[x11/win32/quartz/directfb/none]] select non-default GDK target],
+ 	gdktarget=$with_gdktarget)
+ 
+ AC_SUBST(gdktarget)
+ case $gdktarget in
+-  x11|win32|quartz|directfb) ;;
++  x11|win32|quartz|directfb|none) ;;
+   *) AC_MSG_ERROR([Invalid target for GDK: use x11, quartz, directfb or win32.]);;
+ esac
+ 
+@@ -373,9 +373,6 @@
+ ## annoying to construct
+ PKG_CHECK_MODULES(BASE_DEPENDENCIES,
+   [glib-2.0 >= glib_required_version dnl
+-   atk >= atk_required_version dnl
+-   pango >= pango_required_version dnl
+-   cairo >= cairo_required_version dnl
+    gdk-pixbuf-2.0 >= gdk_pixbuf_required_version])
+ 
+ ## In addition to checking that cairo is present, we also need to
+@@ -388,8 +385,6 @@
+ if test "x$cairo_backend" = "xx11"; then
+    cairo_backend=xlib
+ fi
+-PKG_CHECK_MODULES(CAIRO_BACKEND,
+-  [cairo-$cairo_backend >= cairo_required_version])
+ 
+ if test "$os_win32" != yes; then
+     # libtool option to control which symbols are exported
+@@ -1270,50 +1265,6 @@
+ fi
+ 
+ 
+-# Check for Pango flags
+-
+-if test "x$gdktarget" = "xwin32"; then
+-	PANGO_PACKAGES="pangowin32 pangocairo"
+-else
+-	PANGO_PACKAGES="pango pangocairo"
+-fi
+-
+-AC_MSG_CHECKING(Pango flags)
+-if $PKG_CONFIG --exists $PANGO_PACKAGES ; then
+-        PANGO_CFLAGS=`$PKG_CONFIG --cflags $PANGO_PACKAGES`
+-        PANGO_LIBS=`$PKG_CONFIG --libs $PANGO_PACKAGES`
+-
+-        AC_MSG_RESULT($PANGO_CFLAGS $PANGO_LIBS)
+-else
+-        AC_MSG_ERROR([
+-*** Pango not found. Pango built with Cairo support is required
+-*** to build GTK+. See http://www.pango.org for Pango information.
+-])
+-fi
+-
+-CFLAGS="$CFLAGS $PANGO_CFLAGS"
+-
+-if $PKG_CONFIG --uninstalled $PANGO_PACKAGES; then
+-        :
+-else
+-	gtk_save_LIBS="$LIBS"
+-        LIBS="$PANGO_LIBS $LIBS"
+-        AC_TRY_LINK_FUNC(pango_context_new, :, AC_MSG_ERROR([
+-*** Can't link to Pango. Pango is required to build
+-*** GTK+. For more information see http://www.pango.org]))
+-        LIBS="$gtk_save_LIBS"
+-fi
+-
+-CFLAGS="$saved_cflags"
+-LDFLAGS="$saved_ldflags"
+-
+-# Pull in gio-unix for GDesktopAppInfo usage, see at least gdkapplaunchcontext-x11.c
+-if test "x$gdktarget" = "xx11"; then
+-  GDK_PACKAGES="$PANGO_PACKAGES gio-unix-2.0 $X_PACKAGES gdk-pixbuf-2.0 cairo-$cairo_backend"
+-else
+-  GDK_PACKAGES="$PANGO_PACKAGES gio-2.0 gdk-pixbuf-2.0 cairo-$cairo_backend"
+-fi
+-
+ GDK_DEP_LIBS="$GDK_EXTRA_LIBS `$PKG_CONFIG --libs $GDK_PACKAGES`"
+ GDK_DEP_CFLAGS="`$PKG_CONFIG --cflags  gthread-2.0 $GDK_PACKAGES` $GDK_EXTRA_CFLAGS"
+ #
+@@ -1321,7 +1272,7 @@
+ # into the pkg-config files
+ #
+ if test $enable_explicit_deps != yes ; then
+-  GDK_PACKAGES="$PANGO_PACKAGES gdk-pixbuf-2.0"
++  GDK_PACKAGES="gdk-pixbuf-2.0"
+   GDK_EXTRA_LIBS=
+ fi
+ 
+@@ -1331,37 +1282,7 @@
+ AC_SUBST(GDK_DEP_LIBS)
+ AC_SUBST(GDK_DEP_CFLAGS)
+ 
+-
+-########################################
+-# Check for Accessibility Toolkit flags
+-########################################
+-
+-ATK_PACKAGES=atk
+-AC_MSG_CHECKING(ATK flags)
+-if $PKG_CONFIG --exists $ATK_PACKAGES ; then
+-        ATK_CFLAGS=`$PKG_CONFIG --cflags $ATK_PACKAGES`
+-        ATK_LIBS=`$PKG_CONFIG --libs $ATK_PACKAGES`
+-
+-        AC_MSG_RESULT($ATK_CFLAGS $ATK_LIBS)
+-else
+-        AC_MSG_ERROR([
+-*** Accessibility Toolkit not found. Accessibility Toolkit is required
+-*** to build GTK+.
+-])
+-fi
+-
+-if $PKG_CONFIG --uninstalled $ATK_PACKAGES; then
+-        :
+-else
+-	gtk_save_LIBS="$LIBS"
+-        LIBS="$ATK_LIBS $LIBS"
+-        AC_TRY_LINK_FUNC(atk_object_get_type, : , AC_MSG_ERROR([
+-                *** Cannot link to Accessibility Toolkit. Accessibility Toolkit is required
+-                *** to build GTK+]))
+-        LIBS="$gtk_save_LIBS"
+-fi
+-
+-GTK_PACKAGES="atk cairo gdk-pixbuf-2.0 gio-2.0"
++GTK_PACKAGES="gdk-pixbuf-2.0"
+ if test "x$gdktarget" = "xx11"; then
+   GTK_PACKAGES="$GTK_PACKAGES pangoft2"
+ fi
+@@ -1517,20 +1438,6 @@
+ gtk_save_cppflags="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $GTK_DEP_CFLAGS $GDK_DEP_CFLAGS"
+ 
+-AC_CHECK_HEADER(cairo-pdf.h,,AC_MSG_ERROR([
+-*** Can't find cairo-pdf.h. You must build Cairo with the pdf
+-*** backend enabled.]))
+-
+-if test "$os_win32" != "yes"; then
+-  AC_CHECK_HEADER(cairo-ps.h,,AC_MSG_ERROR([
+-*** Can't find cairo-ps.h. You must build Cairo with the 
+-*** postscript backend enabled.]))
+-
+-  AC_CHECK_HEADER(cairo-svg.h,,AC_MSG_ERROR([
+-*** Can't find cairo-svg.h. You must build Cairo with the
+-*** svg backend enabled.]))
+-fi   
+-
+ CPPFLAGS="$gtk_save_cppflags"
+      
+