Okay, remove previous request only if it has same parent
as this one. Fixes the last note of previous commit
(which was nearly impossible to hit, but whatever, just
cleaning implementation)
#this file is included only when system Lua library is not found
file(GLOB lua_src *.c *.h)
if(WIN32)
add_definitions(-DLUA_BUILD_AS_DLL)
add_library(lua SHARED ${lua_src})
set(LUA_LIBRARY lua.dll)
set_target_properties(lua PROPERTIES PREFIX "")
install(TARGETS lua RUNTIME DESTINATION ${target_dir})
else(WIN32)
add_definitions(-DLUA_USE_LINUX)
add_library(lua STATIC ${lua_src})
set(LUA_LIBRARY lua)
endif(WIN32)