fix build against lua 5.4

haproxy-2.2.0-lua-5.4.patch

@@ -0,0 +1,38 @@
+diff -up haproxy-2.2.0/src/hlua.c.lua54 haproxy-2.2.0/src/hlua.c
+--- haproxy-2.2.0/src/hlua.c.lua54	2020-07-07 10:33:14.000000000 -0400
++++ haproxy-2.2.0/src/hlua.c	2020-07-10 15:21:50.415030526 -0400
+@@ -1069,6 +1069,9 @@ void hlua_hook(lua_State *L, lua_Debug *
+  */
+ static enum hlua_exec hlua_ctx_resume(struct hlua *lua, int yield_allowed)
+ {
++#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM >= 504
++	int nres;
++#endif
+ 	int ret;
+ 	const char *msg;
+ 	const char *trace;
+@@ -1100,7 +1103,11 @@ resume_execution:
+ 	lua->wake_time = TICK_ETERNITY;
+ 
+ 	/* Call the function. */
++#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM >= 504
++	ret = lua_resume(lua->T, gL.T, lua->nargs, &nres);
++#else
+ 	ret = lua_resume(lua->T, gL.T, lua->nargs);
++#endif
+ 	switch (ret) {
+ 
+ 	case LUA_OK:
+@@ -7844,10 +7851,12 @@ static int hlua_load(char **args, int se
+ 		memprintf(err, "Lua message handler error: %s\n", lua_tostring(gL.T, -1));
+ 		lua_pop(gL.T, 1);
+ 		return -1;
++#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM <= 503
+ 	case LUA_ERRGCMM:
+ 		memprintf(err, "Lua garbage collector error: %s\n", lua_tostring(gL.T, -1));
+ 		lua_pop(gL.T, 1);
+ 		return -1;
++#endif
+ 	default:
+ 		memprintf(err, "Lua unknown error: %s\n", lua_tostring(gL.T, -1));
+ 		lua_pop(gL.T, 1);

haproxy.spec

@@ -8,7 +8,7 @@
 
 Name:           haproxy
 Version:        2.2.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        HAProxy reverse proxy for high availability environments
 
 License:        GPLv2+
@@ -21,6 +21,8 @@ Source3:        %{name}.logrotate
 Source4:        %{name}.sysconfig
 Source5:        halog.1
 
+Patch0:         haproxy-2.2.0-lua-5.4.patch
+
 BuildRequires:  gcc
 BuildRequires:  lua-devel
 BuildRequires:  pcre2-devel
@@ -48,6 +50,7 @@ availability environments. Indeed, it can:
 
 %prep
 %setup -q
+%patch0 -p1 -b .lua54
 
 %build
 regparm_opts=
@@ -132,6 +135,9 @@ exit 0
 %{_mandir}/man1/*
 
 %changelog
+* Fri Jul 10 2020 Tom Callaway <spot@fedoraproject.org> - 2.2.0-2
+- fix build against lua 5.4
+
 * Thu Jul 09 2020 Ryan O'Hara <rohara@redhat.com> - 2.2.0-0
 - Update to 2.2.0 (#1854519)