package/jbig2dec: bump to version 0.20

Starting from this version newer releases are only available at a new
dedicated repository, so the site is updated accordingly.

Hash files no longer exist in the new repo, so remove the related
comment.

It turns out that install-sh has been available in the tarball since
version 0.19, so remove JBIG2DEC_AUTORECONF.

Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/jbig2dec/jbig2dec.hash

@@ -1,7 +1,5 @@
-# https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs9530/MD5SUMS
-# and SHA512SUMS are missing the hashes for this file.
 # Locally computed:
-sha256  279476695b38f04939aa59d041be56f6bade3422003a406a85e9792c27118a37  jbig2dec-0.19.tar.gz
+sha256  7b63ff6470289547e7a3a0f145cb8ea6c2afffdd65645b7d87d3b7febc96fb3a  jbig2dec-0.20.tar.gz
 
 # Hash for license files:
 sha256  1bf5258afe453934484fd0cea97508b72301633a6a78b0ae8a9ee44ac78f26d9  LICENSE

package/jbig2dec/jbig2dec.mk

@@ -4,14 +4,12 @@
 #
 ################################################################################
 
-JBIG2DEC_VERSION = 0.19
+JBIG2DEC_VERSION = 0.20
 JBIG2DEC_SITE = \
-	https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs9530
+	https://github.com/ArtifexSoftware/jbig2dec/releases/download/$(JBIG2DEC_VERSION)
 JBIG2DEC_LICENSE = AGPL-3.0+
 JBIG2DEC_LICENSE_FILES = LICENSE
 JBIG2DEC_CPE_ID_VENDOR = artifex
 JBIG2DEC_INSTALL_STAGING = YES
-# tarball is missing install-sh, install.sh, or shtool
-JBIG2DEC_AUTORECONF = YES
 
 $(eval $(autotools-package))