--- net/dns/host_resolver_manager.cc.orig	2020-10-09 16:39:12.064069835 -0400
+++ net/dns/host_resolver_manager.cc	2020-10-09 16:42:49.738302772 -0400
@@ -2779,8 +2779,7 @@
   NetworkChangeNotifier::AddConnectionTypeObserver(this);
   if (system_dns_config_notifier_)
     system_dns_config_notifier_->AddObserver(this);
-#if defined(OS_POSIX) && !defined(OS_APPLE) && !defined(OS_OPENBSD) && \
-    !defined(OS_ANDROID)
+#if defined(__GLIBC__)
   EnsureDnsReloaderInit();
 #endif
 
--- net/dns/dns_reloader.cc.orig	2020-10-09 16:39:12.064069835 -0400
+++ net/dns/dns_reloader.cc	2020-10-09 16:44:30.442419823 -0400
@@ -4,9 +4,8 @@
 
 #include "net/dns/dns_reloader.h"
 
-#if defined(OS_POSIX) && !defined(OS_APPLE) && !defined(OS_OPENBSD) && \
-    !defined(OS_ANDROID) && !defined(OS_FUCHSIA)
-
+#if defined(__GLIBC__)
+ 
 #include <resolv.h>
 
 #include "base/lazy_instance.h"
--- net/dns/host_resolver_proc.cc.orig	2020-10-09 16:39:12.065069836 -0400
+++ net/dns/host_resolver_proc.cc	2020-10-09 16:45:09.641466644 -0400
@@ -159,8 +159,7 @@
   base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
                                                 base::BlockingType::WILL_BLOCK);
 
-#if defined(OS_POSIX) && !defined(OS_APPLE) && !defined(OS_OPENBSD) && \
-    !defined(OS_ANDROID) && !defined(OS_FUCHSIA)
+#if defined(__GLIBC__)
   DnsReloaderMaybeReload();
 #endif
   base::Optional<AddressInfo> ai;
