remove tolua submodule, build with system library (WIP)

.gitmodules

@@ -5,6 +5,3 @@
 [submodule "clibs"]
 	path = clibs
 	url = https://github.com/ennorehling/clibs
-[submodule "tolua"]
-	path = tolua
-	url = https://github.com/ennorehling/tolua.git

.travis.yml

@@ -10,7 +10,7 @@ addons:
     packages:
       - libbsd-dev
       - libdb-dev
-      - liblua5.3-dev
+      - libtolua-dev
       - libncurses5-dev
       - libsqlite3-dev
       - libexpat1-dev

CMakeLists.txt

@@ -47,6 +47,7 @@ if (NOT CURSES_FOUND)
   find_package (Curses)
 endif (NOT CURSES_FOUND)
 
+find_package (ToLua 5.2 REQUIRED)
 #find_package (BerkeleyDB REQUIRED)
 find_package (SQLite3 REQUIRED)
 find_package (IniParser REQUIRED)
@@ -60,7 +61,6 @@ endif()
 
 enable_testing()
 
-add_subdirectory (tolua)
 add_subdirectory (tools)
 add_subdirectory (storage)
 add_subdirectory (clibs)

cmake/Modules/FindToLua.cmake

@@ -0,0 +1,73 @@
+# - Try to find the ToLua library
+# Once done this will define
+#
+#  TOLUA_FOUND - System has ToLua
+#  TOLUA_INCLUDE_DIR - The ToLua include directory
+#  TOLUA_LIBRARIES - The libraries needed to use ToLua
+#  TOLUA_DEFINITIONS - Compiler switches required for using ToLua
+#  TOLUA_EXECUTABLE - The ToLua command line shell
+#  TOLUA_VERSION_STRING - the version of ToLua found (since CMake 2.8.8)
+
+#=============================================================================
+# Copyright 2006-2009 Kitware, Inc.
+# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
+#
+# 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.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# use pkg-config to get the directories and then use these values
+# in the find_path() and find_library() calls
+find_package(PkgConfig QUIET)
+PKG_CHECK_MODULES(PC_TOLUA QUIET ToLua)
+set(TOLUA_DEFINITIONS ${PC_TOLUA_CFLAGS_OTHER})
+
+find_path(TOLUA_INCLUDE_DIR NAMES tolua.h
+   HINTS
+   ${PC_TOLUA_DIR}/include
+   ${PC_TOLUA_INCLUDEDIR}
+   ${PC_TOLUA_INCLUDE_DIRS}
+   )
+find_library(TOLUA_LIBRARY NAMES tolua
+   HINTS
+   ${PC_TOLUA_DIR}/lib
+   ${PC_TOLUA_LIBDIR}
+   ${PC_TOLUA_LIBRARY_DIRS}
+   )
+find_program(TOLUA_EXECUTABLE tolua
+   HINTS
+   ${PC_TOLUA_DIR}/bin
+   ${PC_TOLUA_LIBDIR}
+   ${PC_TOLUA_LIBRARY_DIRS}
+)
+
+SET( TOLUA_LIBRARIES "${TOLUA_LIBRARY}" CACHE STRING "ToLua Libraries")
+
+if(PC_TOLUA_VERSION)
+    set(TOLUA_VERSION_STRING ${PC_TOLUA_VERSION})
+elseif(TOLUA_INCLUDE_DIR AND EXISTS "${TOLUA_INCLUDE_DIR}/tolua.h")
+    file(STRINGS "${TOLUA_INCLUDE_DIR}/tolua.h" tolua_version_str
+         REGEX "^#define[\t ]+TOLUA_VERSION[\t ]+\".*\"")
+
+    string(REGEX REPLACE "^#define[\t ]+TOLUA_VERSION[\t ]+\"tolua ([^\"]*)\".*" "\\1"
+           TOLUA_VERSION_STRING "${tolua_version_str}")
+    unset(tolua_version_str)
+else(PC_TOLUA_VERSION)
+message(ERROR "TOLUA_VERSION_STRING cannot be determined")
+endif(PC_TOLUA_VERSION)
+
+# handle the QUIETLY and REQUIRED arguments and set TOLUA_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(ToLua
+                                  REQUIRED_VARS TOLUA_LIBRARY TOLUA_INCLUDE_DIR TOLUA_EXECUTABLE
+                                  VERSION_VAR TOLUA_VERSION_STRING)
+
+mark_as_advanced(TOLUA_INCLUDE_DIR TOLUA_LIBRARIES TOLUA_EXECUTABLE)
+