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Fix HAVE_RECENT_LJ false-positives

This commit is contained in:
sfan5 2024-04-05 14:11:49 +02:00
parent 9bee6d899b
commit ef0c19477c
1 changed files with 3 additions and 1 deletions
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4
src/CMakeLists.txt
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@ -698,11 +698,13 @@ include(CheckCSourceCompiles)
set(CMAKE_REQUIRED_INCLUDES ${LUA_INCLUDE_DIR})
if(USE_LUAJIT)
set(CMAKE_REQUIRED_LIBRARIES ${LUA_LIBRARY})
# libm usually required if statically linking
set(CMAKE_REQUIRED_LIBRARIES ${LUA_LIBRARY} m)
# LuaJIT provides exactly zero ways to determine how recent it is (the version
# is unchanged since 2017), however it happens that string buffers were added
# after the changes which we care about so that works as an indicator.
# (https://github.com/LuaJIT/LuaJIT/commit/4c6b669 March 2021)
# Note: This is no longer true as of August 2023, but we're keeping the old check.
unset(HAVE_RECENT_LJ CACHE)
check_symbol_exists(luaopen_string_buffer "lualib.h" HAVE_RECENT_LJ)
if(NOT HAVE_RECENT_LJ)