Update XZ Utils to 5.0.3 (in deps)

src/xzdec/Makefile.am

 ##
 ## Author: Lasse Collin
 ##
 ## This file has been put into the public domain.
 ## You can do whatever you want with this file.
 ##
 
 # Windows resource compiler support. It's fine to use xz_CPPFLAGS
 # also for lzmadec.
 .rc.o:
         $(RC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
                 $(xzdec_CPPFLAGS) $(CPPFLAGS) $(RCFLAGS) -i $< -o $@
 
 
-bin_PROGRAMS = xzdec lzmadec
-
 xzdec_SOURCES = \
         xzdec.c \
         $(top_srcdir)/src/common/tuklib_progname.c \
         $(top_srcdir)/src/common/tuklib_exit.c
 
 if COND_W32
 xzdec_SOURCES += xzdec_w32res.rc
 endif
 
 xzdec_CPPFLAGS = \
         -DTUKLIB_GETTEXT=0 \
         -I$(top_srcdir)/src/common \
         -I$(top_srcdir)/src/liblzma/api \
-        -I$(top_builddir)/lib \
-        $(STATIC_CPPFLAGS)
-xzdec_LDFLAGS = $(STATIC_LDFLAGS)
+        -I$(top_builddir)/lib
 xzdec_LDADD = $(top_builddir)/src/liblzma/liblzma.la
 
 if COND_GNULIB
 xzdec_LDADD += $(top_builddir)/lib/libgnu.a
 endif
 
 xzdec_LDADD += $(LTLIBINTL)
 
 
 lzmadec_SOURCES = \
         xzdec.c \
         $(top_srcdir)/src/common/tuklib_progname.c \
         $(top_srcdir)/src/common/tuklib_exit.c
 
 if COND_W32
 lzmadec_SOURCES += lzmadec_w32res.rc
 endif
 
 lzmadec_CPPFLAGS = $(xzdec_CPPFLAGS) -DLZMADEC
 lzmadec_LDFLAGS = $(xzdec_LDFLAGS)
 lzmadec_LDADD = $(xzdec_LDADD)
 
 
+bin_PROGRAMS =
+
+if COND_XZDEC
+bin_PROGRAMS += xzdec
 dist_man_MANS = xzdec.1
+endif
 
+if COND_LZMADEC
+bin_PROGRAMS += lzmadec
+
+# FIXME: If xzdec is disabled, this will create a dangling symlink.
 install-data-hook:
         cd $(DESTDIR)$(mandir)/man1 && \
         target=`echo xzdec | sed '$(transform)'` && \
         link=`echo lzmadec | sed '$(transform)'` && \
         rm -f $$link.1 && \
         $(LN_S) $$target.1 $$link.1
 
 uninstall-hook:
         cd $(DESTDIR)$(mandir)/man1 && \
         link=`echo lzmadec | sed '$(transform)'` && \
         rm -f $$link.1
+endif