launchdarkly-server-sdk.c won't compile with LuaJIT #14
Description
When using luarocks provided by LuaJIT (version 2.1) to make the launchdarkly-server-sdk-1.0-0.rockspec file, the launchdarkly-server-sdk.c file (from release version 1.0.0) fails to compile, with an error saying:
launchdarkly-server-sdk.c:1179:13: error: static declaration of 'luaL_setfuncs' follows non-static declaration
1179 | static void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
| ^~~~~~~~~~~~~
In file included from launchdarkly-server-sdk.c:7:
/usr/local/openresty/luajit/include/luajit-2.1/lauxlib.h:88:18: note: previous declaration of 'luaL_setfuncs' was here
88 | LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
| ^~~~~~~~~~~~~
Error: Build error: Failed compiling object launchdarkly-server-sdk.o
launchdarkly-server-sdk 1.0-0 depends on lua >= 5.1, <= 5.4 (5.1-1 provided by VM)
gcc -O2 -fPIC -I/usr/local/openresty/luajit/include/luajit-2.1 -c launchdarkly-server-sdk.c -o launchdarkly-server-sdk.o -I/usr/local/include
This is probably because the preprocessor directive at line 1175
#if !defined LUA_VERSION_NUM || LUA_VERSION_NUM==501
adds a luaL_setfuncs function since Lua5.1 doesn't seem to have it, but this method is already present in LuaJIT, resulting in a conflict.
Since the Readme mentions support for LuaJIT, we assume that this is an issue.