Avoid nelua_panic_cstring declaration with nochecks pragma

Author: edubart

lualib/nelua/cbuiltins.lua

@@ -660,11 +660,12 @@ function cbuiltins.nelua_idiv_(context, type, checked)
   if context.usedbuiltins[name] then return name end
   assert(type.is_signed)
   local stype, utype = type:signed_type(), type:unsigned_type()
-  context:ensure_builtins('NELUA_UNLIKELY', 'nelua_panic_cstring')
+  context:ensure_builtins('NELUA_UNLIKELY')
   local emitter = CEmitter(context)
   emitter:add_ln('{') emitter:inc_indent()
   emitter:add_indent_ln('if(NELUA_UNLIKELY(b == -1)) return 0U - (', utype ,')a;')
   if checked then
+    context:ensure_builtins('nelua_panic_cstring')
     emitter:add_indent_ln('if(NELUA_UNLIKELY(b == 0)) nelua_panic_cstring("division by zero");')
   end
   emitter:add_indent_ln(stype,' q = a / b;')
@@ -680,11 +681,12 @@ function cbuiltins.nelua_imod_(context, type, checked)
   local name = (checked and  'nelua_assert_imod_' or 'nelua_imod_')..type.codename
   if context.usedbuiltins[name] then return name end
   assert(type.is_signed)
-  context:ensure_builtins('NELUA_UNLIKELY', 'nelua_panic_cstring')
+  context:ensure_builtins('NELUA_UNLIKELY')
   local emitter = CEmitter(context)
   emitter:add_ln('{') emitter:inc_indent()
   emitter:add_indent_ln('if(NELUA_UNLIKELY(b == -1)) return 0;')
   if checked then
+    context:ensure_builtins('nelua_panic_cstring')
     emitter:add_indent_ln('if(NELUA_UNLIKELY(b == 0)) nelua_panic_cstring("division by zero");')
   end
   emitter:add_indent_ln(type,' r = a % b;')