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Modify FindLua.cmake to find Lua compiled as C++

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This commit is contained in:
P. J. McDermott 2024-01-06 19:56:23 -05:00 • committed by Pentarctagon
parent 473a4d19bd
commit bfaabe0831
1 changed files with 36 additions and 12 deletions
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48
cmake/FindLua.cmake
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@ -5,10 +5,7 @@
FindLua
-------
Locate Lua library.
.. versionadded:: 3.18
Support for Lua 5.4.
Locate Lua library compiled as C++ code.
This module defines:
@ -27,20 +24,38 @@ This module defines:
``LUA_VERSION_PATCH``
the patch version of Lua
Note that the expected include convention is
Note that the expected include convention for Wesnoth source files is
::
#include "lua.h"
#include "lua/wrapper_lua.h"
#include "lua/wrapper_lualib.h"
#include "lua/wrapper_lauxlib.h"
and not
::
#include <lua/lua.h>
#include <lua/lualib.h>
#include <lua/lauxlib.h>
This is because, the lua location is not standardized and may exist in
locations other than lua/
nor
::
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
This is because Wesnoth can be configured to use either its Lua submodule or a
system copy of Lua, so wrapper headers exist to include the correct headers.
When compiled as C++, Lua_ handles errors with exceptions. Wesnoth_ requires
this.
.. _Lua: https://github.com/lua/lua/blob/9be74cc/ldo.c#L47
.. _Wesnoth: https://github.com/wesnoth/wesnoth/commit/e4d0ae0
#]=======================================================================]
cmake_policy(PUSH) # Policies apply to functions at definition-time
@ -193,12 +208,21 @@ _lua_find_header()
_lua_get_header_version()
unset(_lua_append_versions)
# Add new names here when found in distributions.
# Debian since lua5.2 5.2.3-2 uses luaX.Y-c++:
# https://salsa.debian.org/lua-team/lua5.2/-/commit/fa2dc77c
# Arch since lua 5.4.4-4 uses lua++-X.Y:
# https://gitlab.archlinux.org/archlinux/packaging/packages/lua/-/commit/4e97e19d
if (LUA_VERSION_STRING)
set(_lua_library_names
lua${LUA_VERSION_MAJOR}${LUA_VERSION_MINOR}
lua${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
lua-${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
lua.${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
lua${LUA_VERSION_MAJOR}${LUA_VERSION_MINOR}-c++
lua${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}-c++
lua-${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}-c++
lua.${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}-c++
lua++${LUA_VERSION_MAJOR}${LUA_VERSION_MINOR}
lua++${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
lua++-${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
lua++.${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
)
endif ()