Fix lua in Fedora 20.

Signed-off-by: Serrière Guillaume <guillaume.serriere@inria.fr>

cmake-modules/FindThirdPartyLua.cmake

@@ -4,39 +4,36 @@
 # Adds include path
 # ---------------------------------
 IF(WIN32)
-	FIND_PATH(LUA_INCLUDE_DIRS lua.h PATHS ${OV_CUSTOM_DEPENDENCIES_PATH}/lua/include NO_DEFAULT_PATH)
-	IF(LUA_INCLUDE_DIRS)
-	  SET(LUA_FOUND TRUE)
-	ENDIF(LUA_INCLUDE_DIRS)
+	FIND_PATH(LUA_INCLUDE_DIR lua.h PATHS ${OV_CUSTOM_DEPENDENCIES_PATH}/lua/include NO_DEFAULT_PATH)
 ELSEIF(UNIX)
-	INCLUDE("FindThirdPartyPkgConfig")
-	if(PLATFORM EQUAL "Fedora")
+	if(${CMAKE_SYSTEM} MATCHES fc21)
 	  FIND_PACKAGE(Lua REQUIRED)
 	else ()
-	  pkg_check_modules(LUA lua5.1)
+	  FIND_PACKAGE(Lua51 REQUIRED)
 	endif()
 
+
 ENDIF(WIN32)
 
-IF(LUA_FOUND)
-	MESSAGE(STATUS "  Found Lua... in '${LUA_INCLUDE_DIRS}'")
+IF(LUA_INCLUDE_DIR)
+	MESSAGE(STATUS "  Found Lua... in '${LUA_INCLUDE_DIR}'")
 
 	IF(WIN32)
-		FIND_LIBRARY(LUA_LIBRARIES lua5.1 PATHS ${LUA_INCLUDE_DIRS}/../lib NO_DEFAULT_PATH)
-		FIND_LIBRARY(LUA_LIBRARIES lua5.1 PATHS ${LUA_INCLUDE_DIRS}/../lib)
+		FIND_LIBRARY(LUA_LIBRARIES lua5.1 PATHS ${LUA_INCLUDE_DIR}/../lib NO_DEFAULT_PATH)
+		FIND_LIBRARY(LUA_LIBRARIES lua5.1 PATHS ${LUA_INCLUDE_DIR}/../lib)
 	ENDIF(WIN32)
 
 	IF(LUA_LIBRARIES)
 		MESSAGE(STATUS "	[  OK  ] lib ${LUA_LIBRARIES}")
 
-		INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIRS})
+		INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})
 		TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${LUA_LIBRARIES})
 		ADD_DEFINITIONS(-DTARGET_HAS_ThirdPartyLua)
 	ELSE(LUA_LIBRARIES)
 		MESSAGE(STATUS "	[FAILED] lib lua5.1")
 	ENDIF(LUA_LIBRARIES)
 
-ELSE(LUA_FOUND)
+ELSE(LUA_INCLUDE_DIR)
 	MESSAGE(STATUS "  FAILED to find Lua")
-ENDIF(LUA_FOUND)
+ENDIF(LUA_INCLUDE_DIR)