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