Improve LLVM compatibility a little bit

third_party/quickjs/quickjs-libc.c

@@ -1463,7 +1463,7 @@ static textstartup void js_std_error_props_init() {
     DEF(EBADF),
 #undef DEF
   };
-  _Static_assert(sizeof(js_std_error_props) == sizeof(props));
+  _Static_assert(sizeof(js_std_error_props) == sizeof(props), "");
   memcpy(js_std_error_props, props, sizeof(props));
 }
 const void *const js_std_error_props_ctor[] initarray = {js_std_error_props_init};
@@ -3592,7 +3592,7 @@ static textstartup void js_os_funcs_init() {
     JS_CFUNC_DEF("dup2", 2, js_os_dup2 ),
 #endif
   };
-  _Static_assert(sizeof(js_os_funcs) == sizeof(funcs));
+  _Static_assert(sizeof(js_os_funcs) == sizeof(funcs), "");
   memcpy(js_os_funcs, funcs, sizeof(funcs));
 }
 const void *const js_os_funcs_ctor[] initarray = {js_os_funcs_init};

third_party/quickjs/quickjs.c

@@ -10731,7 +10731,7 @@ static int JS_ToInt64SatFree(JSContext *ctx, int64_t *pres, JSValue val)
             } else {
                 if (d < INT64_MIN)
                     *pres = INT64_MIN;
-                else if (d > INT64_MAX)
+                else if (d > (double)INT64_MAX)
                     *pres = INT64_MAX;
                 else
                     *pres = (int64_t)d;

third_party/regex/regerror.c

@@ -47,7 +47,7 @@ static const char kRegexErrors[] =
  * @return number of bytes needed to hold entire string
  */
 size_t regerror(int e, const regex_t *preg, char *buf, size_t size) {
-  return 1 + snprintf(buf, size, "%s",
-                      firstnonnull(IndexDoubleNulString(kRegexErrors, e),
-                                   "Unknown error"));
+  return 1 + (snprintf)(buf, size, "%s",
+                        firstnonnull(IndexDoubleNulString(kRegexErrors, e),
+                                     "Unknown error"));
 }