diff --git a/net/dns/dns_config_service_posix.cc b/net/dns/dns_config_service_posix.cc
index 2f94832..2dd1a98 100644
--- a/net/dns/dns_config_service_posix.cc
+++ b/net/dns/dns_config_service_posix.cc
@@ -150,7 +150,7 @@ ConfigParsePosixResult ReadDnsConfig(DnsConfig* dns_config) {
 #if !defined(OS_ANDROID)
   ConfigParsePosixResult result;
 // TODO(fuchsia): Use res_ninit() when it's implemented on Fuchsia.
-#if defined(OS_OPENBSD) || defined(OS_FUCHSIA)
+#if defined(OS_OPENBSD) || defined(OS_FUCHSIA) || (defined(OS_LINUX) && !defined(__GLIBC__))
   // Note: res_ninit in glibc always returns 0 and sets RES_INIT.
   // res_init behaves the same way.
   memset(&_res, 0, sizeof(_res));
@@ -173,7 +173,7 @@ ConfigParsePosixResult ReadDnsConfig(DnsConfig* dns_config) {
 #else
   res_nclose(&res);
 #endif  // defined(OS_MACOSX) || defined(OS_FREEBSD)
-#endif  // defined(OS_OPENBSD)
+#endif  // defined(OS_OPENBSD) || defined(OS_FUCHSIA) || (defined(OS_LINUX) && !defined(__GLIBC__))
 
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   ConfigParsePosixResult error = DnsConfigWatcher::CheckDnsConfig();
diff --git a/net/dns/dns_reloader.cc b/net/dns/dns_reloader.cc
index 952cff4..4b366f4 100644
--- a/net/dns/dns_reloader.cc
+++ b/net/dns/dns_reloader.cc
@@ -4,7 +4,7 @@
 
 #include "net/dns/dns_reloader.h"
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
+#if defined(OS_POSIX) && defined(__GLIBC__) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
     !defined(OS_ANDROID) && !defined(OS_FUCHSIA)
 
 #include <resolv.h>
diff --git a/net/dns/host_resolver_manager.cc b/net/dns/host_resolver_manager.cc
index e8dea46..c86a830 100644
--- a/net/dns/host_resolver_manager.cc
+++ b/net/dns/host_resolver_manager.cc
@@ -2386,7 +2386,7 @@ HostResolverManager::HostResolverManager(
   NetworkChangeNotifier::AddConnectionTypeObserver(this);
   if (system_dns_config_notifier_)
     system_dns_config_notifier_->AddObserver(this);
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
+#if defined(OS_POSIX) && defined(__GLIBC__) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
     !defined(OS_ANDROID)
   EnsureDnsReloaderInit();
 #endif
diff --git a/net/dns/host_resolver_proc.cc b/net/dns/host_resolver_proc.cc
index 0824540..3384978 100644
--- a/net/dns/host_resolver_proc.cc
+++ b/net/dns/host_resolver_proc.cc
@@ -197,7 +197,7 @@ int SystemHostResolverCall(const std::string& host,
   base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
                                                 base::BlockingType::WILL_BLOCK);
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
+#if defined(OS_POSIX) && defined(__GLIBC__) && !defined(OS_MACOSX) && !defined(OS_OPENBSD) && \
     !defined(OS_ANDROID) && !defined(OS_FUCHSIA)
   DnsReloaderMaybeReload();
 #endif