| unset(VERSION) |
| |
| # Ignore all default paths for this test to avoid finding system Lua |
| set(CMAKE_INCLUDE_PATH ) |
| set(CMAKE_PREFIX_PATH ) |
| set(CMAKE_FRAMEWORK_PATH ) |
| |
| set(ENV{CMAKE_INCLUDE_PATH} ) |
| set(ENV{CMAKE_PREFIX_PATH} ) |
| set(ENV{CMAKE_FRAMEWORK_PATH} ) |
| |
| set(ENV{PATH} ) |
| set(ENV{INCLUDE} ) |
| |
| set(CMAKE_SYSTEM_INCLUDE_PATH ) |
| set(CMAKE_SYSTEM_PREFIX_PATH ) |
| set(CMAKE_SYSTEM_FRAMEWORK_PATH ) |
| |
| function(require_found path version) |
| find_package(Lua ${VERSION} QUIET) |
| if(NOT "${LUA_INCLUDE_DIR}" STREQUAL "${path}") |
| message(FATAL_ERROR "LUA_INCLUDE_PATH != path: '${LUA_INCLUDE_DIR}' != '${path}'") |
| endif() |
| if(NOT LUA_VERSION_STRING MATCHES "^${version}\.[0-9]$") |
| message(FATAL_ERROR "Wrong versionfound in '${LUA_INCLUDE_DIR}': ${LUA_VERSION_STRING} != ${version}") |
| endif() |
| endfunction() |
| |
| # Use functions for scoping and better error messages |
| function(require_find path version) |
| unset(LUA_INCLUDE_DIR CACHE) |
| require_found(${lua_path} ${version}) |
| endfunction() |
| |
| function(test_prefix_path path lua_path version) |
| set(CMAKE_PREFIX_PATH ${path}) |
| require_find(lua_path ${version}) |
| endfunction() |
| |
| function(test_include_path path lua_path version) |
| set(CMAKE_INCLUDE_PATH ${path}) |
| require_find(lua_path ${version}) |
| endfunction() |
| |
| function(test_env_path path lua_path version) |
| set(ENV{LUA_DIR} ${path}) |
| require_find(lua_path ${version}) |
| unset(ENV{LUA_DIR}) |
| endfunction() |
| |
| function(test_path prefix_path lua_path version) |
| # Shortcut: Make paths relative to current list dir |
| set(prefix_path ${CMAKE_CURRENT_LIST_DIR}/${prefix_path}) |
| set(lua_path ${CMAKE_CURRENT_LIST_DIR}/${lua_path}) |
| |
| test_prefix_path(${prefix_path} ${lua_path} ${version}) |
| test_include_path(${prefix_path}/include ${lua_path} ${version}) |
| test_env_path(${prefix_path} ${lua_path} ${version}) |
| endfunction() |
| |
| # Simple test |
| test_path(prefix1 prefix1/include 5.3) |
| # Find highest version |
| test_path(prefix2 prefix2/include/lua5.3 5.3) |
| foreach(ver 5.3 5.2 5.1) |
| # At least X or X.0 -> Highest |
| set(VERSION "${ver}") |
| test_path(prefix2 prefix2/include/lua5.3 5.3) |
| set(VERSION "${ver}.0") |
| test_path(prefix2 prefix2/include/lua5.3 5.3) |
| # Exactly X/X.0 |
| set(VERSION "${ver}" EXACT) |
| test_path(prefix2 prefix2/include/lua${ver} ${ver}) |
| set(VERSION "${ver}.0" EXACT) |
| test_path(prefix2 prefix2/include/lua${ver} ${ver}) |
| endforeach() |
| |
| # Find unknown version |
| set(VERSION "5.9") |
| test_path(prefix2 prefix2/include/lua5.9 5.9) |
| set(VERSION "5.9" EXACT) |
| test_path(prefix2 prefix2/include/lua5.9 5.9) |
| |
| # Set LUA_INCLUDE_DIR (non-cache) to unsuitable version |
| set(LUA_INCLUDE_DIR ${CMAKE_CURRENT_LIST_DIR}/prefix2/include/lua5.2) |
| set(VERSION "5.1" EXACT) |
| test_path(prefix2 prefix2/include/lua5.1 5.1) |