diff --git a/build.sh b/build.sh
index 989b90c..7036155 100755
--- a/build.sh
+++ b/build.sh
@@ -27,9 +27,13 @@ _next=""
 unstable="no"
 neochan="no"
 buildredis="no"
+lua="no"
 # check for build flags
 for arg in "$@" ; do
     case $arg in
+        "--enable-lua")
+            lua="yes"
+            ;;
         "--enable-redis")
             buildredis="yes"
             ;;
@@ -62,6 +66,10 @@ if [ "$buildredis" == "yes" ] ; then
     tags="$tags -tags disable_redis"
 fi
 
+if [ "$lua" == "yes" ] ; then
+    tags="$tags -tags lua"
+fi
+
 if [ "$rev" == "" ] ; then
     echo "revision not specified"
     exit 1
diff --git a/contrib/lua/memeposting.lua b/contrib/lua/memeposting.lua
new file mode 100644
index 0000000..9b9b775
--- /dev/null
+++ b/contrib/lua/memeposting.lua
@@ -0,0 +1,16 @@
+
+-- simple replacements demo
+
+function span_text(str, class)
+  return string.format("<span class='%s'>%s</span>", class, str)
+end
+
+function wobble_text(str)
+  return span_text("wobble", str)
+end
+
+-- generate extra markup
+function memeposting(prefix, body)
+  body = string.gsub(body, "<(%w+)>", wobble_text)
+  return body
+end