Update jbig2dec to version 0.15

Ref #3131

repos/libports/lib/mk/jbig2dec.mk

@@ -3,7 +3,7 @@ LIBS        += libc libpng zlib
 INC_DIR     += $(JBIG2DEC_DIR) $(REP_DIR)/include/jbig2dec
 
 # incorporate all '*.c' files except those that are not part of the library
-FILTER_OUT = jbig2dec.c snprintf.c
+FILTER_OUT = jbig2dec.c snprintf.c pbm2png.c
 SRC_C = $(filter-out $(FILTER_OUT),$(notdir $(wildcard $(JBIG2DEC_DIR)/*.c)))
 
 # definitions normally provided by a config.h file

repos/libports/ports/jbig2dec.hash

@@ -1 +1 @@
-4ccfffd8e6b8f3e5fb5b8aeaa219e9547c6323a1
+68226914536c0fdb1fb42fd87685989a43a8ea92

repos/libports/ports/jbig2dec.port

@@ -1,9 +1,9 @@
 LICENSE := unknown
-DOWNLOADS := jbig2dec.git
-VERSION := 0.11
+DOWNLOADS := jbig2dec.archive
+VERSION := 0.15
 
-URL(jbig2dec) := http://git.ghostscript.com/jbig2dec.git
-REV(jbig2dec) := 58b513e3ec60feac13ea429c4aff12ea8a8de91d
+URL(jbig2dec) := https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs924/jbig2dec-$(VERSION).tar.gz
+SHA(jbig2dec) := 6bfa1af72de37c7929315933a1ba696540d860936ad98f9de02fc725d7e53854
 DIR(jbig2dec) := src/lib/jbig2dec
 
 DIRS := include/jbig2dec