package/ocrad: bump to version 0.28

- Add libpng mandatory dependency

https://lists.gnu.org/archive/html/bug-ocrad/2022-01/msg00000.html

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ocrad/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_OCRAD
 	bool "ocrad"
 	depends on BR2_INSTALL_LIBSTDCPP
+	select BR2_PACKAGE_LIBPNG
 	help
 	  GNU Ocrad is an OCR (Optical Character Recognition) program
 	  based on a feature extraction method.

package/ocrad/ocrad.hash

@@ -1,3 +1,3 @@
 # Locally calculated after checking pgp signature
-sha256  a9bfe67e9a040907aff5640dca56392476b6a89e48e37dc94ba846c5b6733b36  ocrad-0.27.tar.lz
+sha256  34ccea576dbdadaa5979e6202344c3ff68737d829ca7b66f71c8497d36bbbf2e  ocrad-0.28.tar.lz
 sha256  3d77c1a58fbde5ddba612d1fe09965e20a3804953eca12e8c1892298bb8a5eef  COPYING

package/ocrad/ocrad.mk

@@ -4,12 +4,13 @@
 #
 ################################################################################
 
-OCRAD_VERSION = 0.27
+OCRAD_VERSION = 0.28
 OCRAD_SOURCE = ocrad-$(OCRAD_VERSION).tar.lz
 OCRAD_SITE = $(BR2_GNU_MIRROR)/ocrad
 OCRAD_LICENSE = GPL-2.0+
 OCRAD_LICENSE_FILES = COPYING
 OCRAD_INSTALL_STAGING = YES
+OCRAD_DEPENDENCIES = libpng
 
 # This is not a true autotools package.
 define OCRAD_CONFIGURE_CMDS