Use FreeAndNil across the board. Even if we are immediately assigning after, probably avoids accidental mistakes. Also free neglected owner tex on shutdown, and delete hog gears using the normal deletion procedure if for any reason they still exist (EndGame call?).
# Find liblua
#
# Once done this will define
# LUA_FOUND - system has Lua
# LUA_INCLUDE_DIR - the Lua include directory
# LUA_LIBRARY - The library needed to use Lua
# Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
include(FindPackageHandleStandardArgs)
find_path(LUA_INCLUDE_DIR lua.h
PATHS /usr/include /usr/local/include /usr/pkg/include
PATH_SUFFIXES lua5.1 lua51)
find_library(LUA_LIBRARY NAMES lua51 lua5.1 lua-5.1 lua
PATHS /lib /usr/lib /usr/local/lib /usr/pkg/lib)
find_package_handle_standard_args(Lua DEFAULT_MSG LUA_LIBRARY LUA_INCLUDE_DIR)
mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARY)