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| author | Ivan Ivanov <anonim288@gmail.com> | 2016-06-20 20:01:32 +0300 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2016-06-20 14:38:32 -0400 |
| commit | 281c707b65dee100f09b4782a3d7e60bc8d29db8 (patch) | |
| tree | af716eb1fcb91ec5dfb3e16964f6c02fd9b95311 /Modules/FindLua.cmake | |
| parent | 92c67b9f01292741428eae12878aad52bf23b002 (diff) | |
| download | cmake-281c707b65dee100f09b4782a3d7e60bc8d29db8.tar.gz | |
FindLua: Factor out a helper function for version extraction
Diffstat (limited to 'Modules/FindLua.cmake')
| -rw-r--r-- | Modules/FindLua.cmake | 53 |
1 files changed, 30 insertions, 23 deletions
diff --git a/Modules/FindLua.cmake b/Modules/FindLua.cmake index eddd94b73e..6a9d5b58b3 100644 --- a/Modules/FindLua.cmake +++ b/Modules/FindLua.cmake @@ -95,6 +95,34 @@ function(_lua_set_version_vars) set(_lua_library_names "${_lua_library_names}" PARENT_SCOPE) endfunction(_lua_set_version_vars) +function(_lua_check_header_version _hdr_file) + # At least 5.[012] have different ways to express the version + # so all of them need to be tested. Lua 5.2 defines LUA_VERSION + # and LUA_RELEASE as joined by the C preprocessor, so avoid those. + file(STRINGS "${_hdr_file}" lua_version_strings + REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*") + + string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MAJOR ";${lua_version_strings};") + if (LUA_VERSION_MAJOR MATCHES "^[0-9]+$") + string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MINOR ";${lua_version_strings};") + string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_PATCH ";${lua_version_strings};") + set(LUA_VERSION_STRING "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}") + else () + string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") + if (NOT LUA_VERSION_STRING MATCHES "^[0-9.]+$") + string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") + endif () + string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUA_VERSION_MAJOR "${LUA_VERSION_STRING}") + string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUA_VERSION_MINOR "${LUA_VERSION_STRING}") + string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_PATCH "${LUA_VERSION_STRING}") + endif () + + set(LUA_VERSION_MAJOR ${LUA_VERSION_MAJOR} PARENT_SCOPE) + set(LUA_VERSION_MINOR ${LUA_VERSION_MINOR} PARENT_SCOPE) + set(LUA_VERSION_PATCH ${LUA_VERSION_PATCH} PARENT_SCOPE) + set(LUA_VERSION_STRING ${LUA_VERSION_STRING} PARENT_SCOPE) +endfunction(_lua_check_header_version) + _lua_set_version_vars() find_path(LUA_INCLUDE_DIR lua.h @@ -138,29 +166,8 @@ if (LUA_LIBRARY) endif () if (LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h") - # At least 5.[012] have different ways to express the version - # so all of them need to be tested. Lua 5.2 defines LUA_VERSION - # and LUA_RELEASE as joined by the C preprocessor, so avoid those. - file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_strings - REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*") - - string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MAJOR ";${lua_version_strings};") - if (LUA_VERSION_MAJOR MATCHES "^[0-9]+$") - string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MINOR ";${lua_version_strings};") - string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_PATCH ";${lua_version_strings};") - set(LUA_VERSION_STRING "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}") - else () - string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") - if (NOT LUA_VERSION_STRING MATCHES "^[0-9.]+$") - string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") - endif () - string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUA_VERSION_MAJOR "${LUA_VERSION_STRING}") - string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUA_VERSION_MINOR "${LUA_VERSION_STRING}") - string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_PATCH "${LUA_VERSION_STRING}") - endif () - - unset(lua_version_strings) -endif() + _lua_check_header_version("${LUA_INCLUDE_DIR}/lua.h") +endif () include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) # handle the QUIETLY and REQUIRED arguments and set LUA_FOUND to TRUE if |