Took into respect optional libz dependency of libisofs

xorriso/compile_xorriso.sh

@@ -1,12 +1,13 @@
 #!/bin/sh
 
 # compile_xorriso.sh
-# Copyright 2005 - 2009 Thomas Schmitt, scdbackup@gmx.net, GPL
+# Copyright 2005 - 2009 Thomas Schmitt, scdbackup@gmx.net, GPL version 2
 #
 # Not intended for general use in production installations !
 # Rather use:  ./bootstrap ; ./configure ; make
 #
-# This is a development tool which expects a special setup of directories.
+# This is a development tool which expects a special setup of directories
+# on a Linux system (e.g. SuSE 10.2).
 # It is to be executed in a common parent of the directories given with
 #   $isofs $isoburn $burn $xorr
 
@@ -88,6 +89,7 @@ libisofs="$libisofs $isofs"make_isohybrid_mbr.o
 libisofs="$libisofs $isofs"aaip_0_2.o
 libisofs="$libisofs $isofs"filter.o
 libisofs="$libisofs $isofs_filter"external.o
+libisofs="$libisofs $isofs_filter"zisofs.o
 
 echo "Version timestamp :  $(sed -e 's/#define Xorriso_timestamP "//' -e 's/"$//' "$xorr"/xorriso_timestamp.h)"
 
@@ -145,7 +147,8 @@ cc -I. -DXorriso_with_maiN $def_libreadline \
   $link_libreadline \
   \
   -lpthread \
-  -lacl
+  -lacl \
+  -lz
 
   ret=$?
   if test "$ret" = 0