https://gitlab.com/openconnect/openconnect/-/merge_requests/533

From 5f59c2efa27295d6b3675a8b750357a6e883c45d Mon Sep 17 00:00:00 2001
From: Brahmajit Das <brahmajit.xyz@gmail.com>
Date: Mon, 29 Jan 2024 23:28:53 +0530
Subject: [PATCH] Fix implicit declaration of function 'malloc'

First observed on Gentoo Linux with GCC 14. This is due to GCC 14
enabling -Werror=implicit-function-declaration by default.
Thus resulting in errors such as:

openconnect-internal.h: In function 'alloc_pkt':
openconnect-internal.h:911:27: error: implicit declaration of function 'malloc' [-Werror=implicit-function-declaration]
  911 |         struct pkt *pkt = malloc(alloc_len);
      |                           ^~~~~~

Plese refer gentoo bug: https://bugs.gentoo.org/923173
Signed-off-by: Brahmajit Das <brahmajit.xyz@gmail.com>
---
 openconnect-internal.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/openconnect-internal.h b/openconnect-internal.h
index 21460adf..5abfe98d 100644
--- a/openconnect-internal.h
+++ b/openconnect-internal.h
@@ -119,6 +119,7 @@
 #include <sys/types.h>
 
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 
-- 
2.43.0