diff -up lua-5.2.2/configure.ac.linux lua-5.2.2/configure.ac

--- lua-5.2.2/configure.ac.linux	2013-05-10 15:42:27.269437631 -0400

+++ lua-5.2.2/configure.ac	2013-05-10 15:43:23.530435620 -0400

@@ -50,6 +50,7 @@ AC_SUBST(READLINE_LIBS)

 case "$host" in

   *-mingw*)  use_os=win32  ;;

   *-darwin*) use_os=macosx ;;

+  *-linux*)  use_os=linux  ;;

   *)         use_os=posix  ;;

 esac

@@ -62,6 +63,10 @@ if test "x$use_os" == "xwin32"; then

 elif test "x$use_os" == "xmacosx"; then

   POSIX_DEFS="#define LUA_USE_POSIX"

   LUA_DL_DEFS="#define LUA_DL_DYLD"

+elif test "x$use_os" == "xlinux"; then

+  POSIX_DEFS="#define LUA_USE_LINUX"

+  LUA_DL_DEFS="#define LUA_DL_DLOPEN"

+  LUA_LIBS="$LUA_LIBS -ldl"

 elif test "x$use_os" == "xposix"; then

   POSIX_DEFS="#define LUA_USE_POSIX"

   LUA_DL_DEFS="#define LUA_DL_DLOPEN"