rand: only try and use freeifaddrs if available

fanquake · Fuzzbawls · commit 414f405281c0 · 2021-04-13T21:00:30.000-07:00
# Conflicts:
#	src/randomenv.cpp
diff --git a/src/randomenv.cpp b/src/randomenv.cpp
@@ -42,7 +42,7 @@
 #include <mach/mach.h>
 #include <mach/mach_time.h>
 #endif
-#if HAVE_DECL_GETIFADDRS
+#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS
 #include <ifaddrs.h>
 #endif
 #if HAVE_SYSCTL
@@ -378,7 +378,7 @@ 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);
