From: Willy Tarreau <w@1wt.eu>
Date: Wed, 14 Jul 2021 17:41:25 +0000 (+0200)
Subject: BUILD: lua: silence a build warning with TCC
X-Git-Tag: v2.5-dev2~21
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6a510907807b7fb901654b4f5e5100aa91868fb7;p=thirdparty%2Fhaproxy.git

BUILD: lua: silence a build warning with TCC

TCC doesn't have the equivalent of __builtin_unreachable() and complains
that hlua_panic_ljmp() may return no value. Let's add a return 0 there.
All compilers that know that longjmp() doesn't return will see no change
and tcc will be happy.
---

diff --git a/src/hlua.c b/src/hlua.c
index 2ad3d19bd1..f7100465ba 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -124,7 +124,7 @@
 __decl_spinlock(hlua_global_lock);
 THREAD_LOCAL jmp_buf safe_ljmp_env;
 static int hlua_panic_safe(lua_State *L) { return 0; }
-static int hlua_panic_ljmp(lua_State *L) { WILL_LJMP(longjmp(safe_ljmp_env, 1)); }
+static int hlua_panic_ljmp(lua_State *L) { WILL_LJMP(longjmp(safe_ljmp_env, 1)); return 0; }
 
 /* This is the chained list of struct hlua_function referenced
  * for haproxy action, sample-fetches, converters, cli and