add new buildroot package 'xosd' which will allow us to display an OSD (#41)

Author: jens-maus

buildroot-external/Buildroot.config

@@ -106,3 +106,4 @@ BR2_PACKAGE_HOST_MTOOLS=y
 BR2_PACKAGE_HOTKEYD=y
 BR2_PACKAGE_NUMLOCKX=y
 BR2_PACKAGE_XPRINTIDLE=y
+BR2_PACKAGE_XOSD=y

buildroot-external/Config.in

@@ -16,4 +16,5 @@ menu "Additional software"
   source "$BR2_EXTERNAL_THINROOT_PATH/package/qt-kiosk-browser/Config.in"
   source "$BR2_EXTERNAL_THINROOT_PATH/package/multilib32/Config.in"
   source "$BR2_EXTERNAL_THINROOT_PATH/package/yoe-kiosk-browser/Config.in"
+  source "$BR2_EXTERNAL_THINROOT_PATH/package/xosd/Config.in"
 endmenu

buildroot-external/package/xosd/Config.in

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_XOSD
+	bool "xosd"
+	select BR2_PACKAGE_XLIB_LIBX11
+	select BR2_PACKAGE_XLIB_LIBXEXT
+	help
+	  XOSD displays text on your screen, sounds simple right?
+	  The difference is it is unmanaged and shaped, so it appears
+	  transparent. This gives the effect of an On Screen Display,
+	  like your TV/VCR etc.
+
+	  https://sourceforge.net/projects/libxosd/

buildroot-external/package/xosd/xosd.hash

@@ -0,0 +1 @@
+sha256  4f1fa96f4895baee6a3cba40f188a0da23bbac9d68e8c326d749e084143cb508  xosd-2.2.14.tar.gz

buildroot-external/package/xosd/xosd.mk

@@ -0,0 +1,20 @@
+################################################################################
+#
+# libxosd / xosd
+#
+################################################################################
+
+XOSD_VERSION = 2.2.14
+XOSD_SITE = https://downloads.sourceforge.net/project/libxosd/libxosd/xosd-$(XOSD_VERSION)
+XOSD_LICENSE = GPL-2.0-or-later
+XOSD_LICENSE_FILES = COPYING
+XOSD_DEPENDENCIES = xlib_libX11 xlib_libXext
+
+# remove unnecessary stuff
+define XOSD_REMOVE_DATA
+	$(RM) -r $(TARGET_DIR)/usr/share/xosd
+	$(RM) -r $(TARGET_DIR)/usr/bin/xosd-config
+endef
+XOSD_POST_INSTALL_TARGET_HOOKS += XOSD_REMOVE_DATA
+
+$(eval $(autotools-package))