# Search for the Lua 5.3 include files and libraries # # Input variable: # LUA_HINT: path to Lua installation -- only needed for non-standard installs # Output variable: # HAVE_LUA : if Lua was found # LUA_LIBRARY : the path to the dynamic library # LUA_INCLUDE_DIR : where to find lua.h # LUA_VERSION_MAJOR: First part of the version (often, 5) # LUA_VERSION_MINOR: Second part of the version (3 when we have 5.3) find_path(LUA_INCLUDE_DIR lua.h HINTS ENV LUA_HINT PATH_SUFFIXES include/lua53 include/lua5.3 include/lua-5.3 include/lua include PATHS ~/Library/Frameworks /Library/Frameworks /sw # Fink /opt/local # DarwinPorts /opt/csw # Blastwave /opt ) find_library(LUA_LIBRARY NAMES # I don't want a lua.a lua53.so lua5.3.so lua-5.3.so lua53.dynlib lua5.3.dynlib lua-5.3.dynlib lua53.dll lua5.3.dll lua-5.3.dll lua.so lua.dynlib lua.dll lua53 lua5.3 lua-5.3 lua HINTS ENV LUA_HINT PATH_SUFFIXES lib PATHS ~/Library/Frameworks /Library/Frameworks /sw /opt/local /opt/csw /opt ) if (NOT LUA_LIBRARY) message(FATAL_ERROR "Error: Lua library not found. Please install that package (and set LUA_HINT) or disable Lua.") endif() if (NOT LUA_INCLUDE_DIR OR NOT EXISTS "${LUA_INCLUDE_DIR}/lua.h") message(FATAL_ERROR "Error: Lua header file not found. Please install that package (and set LUA_HINT) or disable Lua.") endif() # Extract the version info out of the header file file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"[456]+\"") string(REGEX REPLACE "^#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([^\"]+)\"" "\\1" LUA_VERSION_MAJOR "${lua_version_str}") file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_VERSION_MINOR[ \t]+\"[0123456789]+\"") string(REGEX REPLACE "^#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([^\"]+)\"" "\\1" LUA_VERSION_MINOR "${lua_version_str}") unset(lua_version_str) # Check that we have a sufficient version of Lua if(LUA_VERSION_MAJOR EQUAL 5 AND LUA_VERSION_MINOR EQUAL 3) set(HAVE_LUA 1) include_directories(${LUA_INCLUDE_DIR}) else() message(FATAL_ERROR "Error: Lua version 5.3 is required, but version ${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR} found instead.") endif() message(STATUS "Lua version: ${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}") message(STATUS "Lua library: ${LUA_LIBRARY}") mark_as_advanced(LUA_INCLUDE_DIR) mark_as_advanced(LUA_LIBRARY)