From e00c9ba79ca5f6508e3270d529d144fd566ce158 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Sat, 17 Apr 2021 21:42:49 +0200
Subject: [PATCH] Don't call realloc with size=0 to free data.

Newer versions of the C spec and POSIX have changed the behavior of
realloc called with size 0 to be implementation defined.
---
 jsstate.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/jsstate.c b/jsstate.c
index c90e135..0f026d5 100644
--- a/jsstate.c
+++ b/jsstate.c
@@ -10,15 +10,10 @@
 
 static void *js_defaultalloc(void *actx, void *ptr, int size)
 {
-#ifndef __has_feature
-#define __has_feature(x) 0
-#endif
-#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
 	if (size == 0) {
 		free(ptr);
 		return NULL;
 	}
-#endif
 	return realloc(ptr, (size_t)size);
 }