files to create a loki-setup based installer. run "make installer"

code/unix/setup/ioq3demo.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+readlink() {
+    local path=$1 ll
+    
+    if [ -L "$path" ]; then 
+        ll="$(LC_ALL=C ls -l "$path" 2> /dev/null)" &&
+        echo "${ll/* -> }"
+    else    
+        return 1
+    fi
+}
+
+script=$0
+count=0
+while [ -L "$script" ]  
+do
+    script=$(readlink "$script")
+    count=`expr $count + 1`
+    if [ $count -gt 100 ]   
+    then    
+        echo "Too many symbolic links"
+        exit 1
+    fi
+done
+cd "`dirname $script`"
+
+
+lib=lib
+test -e lib64 && lib=lib64
+
+if test "x$LD_LIBRARY_PATH" = x; then
+	LD_LIBRARY_PATH="`pwd`/$lib"
+else
+	LD_LIBRARY_PATH="`pwd`/$lib:$LD_LIBRARY_PATH"
+fi
+export LD_LIBRARY_PATH
+
+arch=`uname -m`
+case "$arch" in
+	i?86) arch=i386 ;;
+esac
+
+exec ./ioquake3.$arch +set sv_pure 0 +set vm_cgame 0 +set vm_game 0 +set vm_ui 0 +set fs_game demoq3 "$@"