From 87deac66aa747481e6f34fc80599e1e490de3ea0 Mon Sep 17 00:00:00 2001
From: fanquake <fanquake@gmail.com>
Date: Sat, 20 Mar 2021 17:57:43 +0800
Subject: [PATCH] rand: only try and use freeifaddrs if available

---
 src/randomenv.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/randomenv.cpp b/src/randomenv.cpp
index 9248db1539c..fa2a3a0607f 100644
--- a/src/randomenv.cpp
+++ b/src/randomenv.cpp
@@ -38,7 +38,7 @@
 #include <sys/utsname.h>
 #include <unistd.h>
 #endif
-#if HAVE_DECL_GETIFADDRS
+#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS
 #include <ifaddrs.h>
 #endif
 #if HAVE_SYSCTL
@@ -361,7 +361,7 @@ void RandAddStaticEnv(CSHA512& hasher)
         hasher.Write((const unsigned char*)hname, strnlen(hname, 256));
     }
 
-#if HAVE_DECL_GETIFADDRS
+#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS
     // Network interfaces
     struct ifaddrs *ifad = NULL;
     getifaddrs(&ifad);