Update XZ Utils to 5.0.3 (in deps)

Makefile.am

 ##
 ## Author: Lasse Collin
 ##
 ## This file has been put into the public domain.
 ## You can do whatever you want with this file.
 ##
 
 DIST_SUBDIRS = lib src po tests debug
 SUBDIRS =
 
 if COND_GNULIB
 SUBDIRS += lib
 endif
 
 SUBDIRS += src po tests
 
 dist_doc_DATA = \
         AUTHORS \
         COPYING \
         COPYING.GPLv2 \
         NEWS \
         README \
         THANKS \
         TODO \
         doc/faq.txt \
         doc/history.txt \
         doc/xz-file-format.txt \
         doc/lzma-file-format.txt
 
+examplesdir = $(docdir)/examples
+dist_examples_DATA = \
+        doc/examples/xz_pipe_comp.c \
+        doc/examples/xz_pipe_decomp.c
+
 EXTRA_DIST = \
         extra \
         dos \
         windows \
         autogen.sh \
-        version.sh \
         Doxyfile.in \
         COPYING.GPLv2 \
         COPYING.GPLv3 \
         COPYING.LGPLv2.1 \
         INSTALL.generic \
-        PACKAGERS
+        PACKAGERS \
+        build-aux/manconv.sh \
+        build-aux/version.sh
 
 ACLOCAL_AMFLAGS = -I m4
 
 # List of man pages to conver to PDF and plain text in the dist-hook target.
 manfiles = \
         src/xz/xz.1 \
         src/xzdec/xzdec.1 \
         src/lzmainfo/lzmainfo.1 \
         src/scripts/xzdiff.1 \
         src/scripts/xzgrep.1 \
         src/scripts/xzless.1 \
         src/scripts/xzmore.1
 
 # Create ChangeLog from output of "git log --date=iso --stat".
 # Convert the man pages to PDF and plain text (ASCII only) formats.
 dist-hook:
         if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
                 ( cd "$(srcdir)" && git log --date=iso --stat ) \
                         > "$(distdir)/ChangeLog"; \
         fi
         if type groff > /dev/null 2>&1 && type ps2pdf > /dev/null 2>&1; then \
                 dest="$(distdir)/doc/man" && \
                 $(MKDIR_P) "$$dest/pdf-a4" "$$dest/pdf-letter" "$$dest/txt" && \
                 for FILE in $(manfiles); do \
                         BASE=`basename $$FILE .1` && \
-                        groff -man -t -Tps -P-pa4 < "$(srcdir)/$$FILE" \
-                                | ps2pdf - - \
+                        sh "$(srcdir)/build-aux/manconv.sh" pdf a4 \
+                                < "$(srcdir)/$$FILE" \
                                 > "$$dest/pdf-a4/$$BASE-a4.pdf" && \
-                        groff -man -t -Tps -P-pletter < "$(srcdir)/$$FILE" \
-                                | ps2pdf - - \
+                        sh "$(srcdir)/build-aux/manconv.sh" pdf letter \
+                                < "$(srcdir)/$$FILE" \
                                 > "$$dest/pdf-letter/$$BASE-letter.pdf" && \
-                        groff -man -t -Tascii < "$(srcdir)/$$FILE" \
-                                | col -bx > "$$dest/txt/$$BASE.txt"; \
+                        sh "$(srcdir)/build-aux/manconv.sh" ascii \
+                                < "$(srcdir)/$$FILE" \
+                                > "$$dest/txt/$$BASE.txt"; \
                 done; \
         fi
 
 # This works with GNU tar and gives cleaner package than normal 'make dist'.
 mydist:
+        VERSION=$(VERSION); \
         if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
                 SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=4 | cut -b2-`; \
                 test -n "$$SNAPSHOT" && VERSION=$$SNAPSHOT; \
         fi; \
         TAR_OPTIONS='--owner=0 --group=0 --numeric-owner --mode=u+rw,go+r-w' \
                 $(MAKE) VERSION="$$VERSION" dist-gzip