diff --git a/logging.cpp b/logging.cpp
index 4942e2f..1ff0996 100644
--- a/logging.cpp
+++ b/logging.cpp
@@ -209,9 +209,9 @@ static std::recursive_mutex& TagLock() {
 static std::string* gDefaultTag;
 
 void SetDefaultTag(const std::string& tag) {
-  if (__builtin_available(android 30, *)) {
-    __android_log_set_default_tag(tag.c_str());
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    __android_log_set_default_tag(tag.c_str());
+//  } else {
     std::lock_guard<std::recursive_mutex> lock(TagLock());
     if (gDefaultTag != nullptr) {
       delete gDefaultTag;
@@ -220,7 +220,7 @@ void SetDefaultTag(const std::string& tag) {
     if (!tag.empty()) {
       gDefaultTag = new std::string(tag);
     }
-  }
+//  }
 }
 
 static bool gInitialized = false;
@@ -314,13 +314,13 @@ static void LogdLogChunk(LogId id, LogSeverity severity, const char* tag, const
   int32_t lg_id = LogIdTolog_id_t(id);
   int32_t priority = LogSeverityToPriority(severity);
 
-  if (__builtin_available(android 30, *)) {
-    __android_log_message log_message = {sizeof(__android_log_message),     lg_id, priority, tag,
-                                         static_cast<const char*>(nullptr), 0,     message};
-    __android_log_logd_logger(&log_message);
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    __android_log_message log_message = {sizeof(__android_log_message),     lg_id, priority, tag,
+//                                         static_cast<const char*>(nullptr), 0,     message};
+//    __android_log_logd_logger(&log_message);
+//  } else {
     __android_log_buf_print(lg_id, priority, tag, "%s", message);
-  }
+//  }
 }
 
 LogdLogger::LogdLogger(LogId default_log_id) : default_log_id_(default_log_id) {}
@@ -396,15 +396,15 @@ LogFunction SetLogger(LogFunction&& logger) {
   LogFunction old_logger = std::move(Logger());
   Logger() = std::move(logger);
 
-  if (__builtin_available(android 30, *)) {
-    __android_log_set_logger([](const struct __android_log_message* log_message) {
-      auto log_id = log_id_tToLogId(log_message->buffer_id);
-      auto severity = PriorityToLogSeverity(log_message->priority);
-
-      Logger()(log_id, severity, log_message->tag, log_message->file, log_message->line,
-               log_message->message);
-    });
-  }
+//  if (__builtin_available(android 30, *)) {
+//    __android_log_set_logger([](const struct __android_log_message* log_message) {
+//      auto log_id = log_id_tToLogId(log_message->buffer_id);
+//      auto severity = PriorityToLogSeverity(log_message->priority);
+//
+//      Logger()(log_id, severity, log_message->tag, log_message->file, log_message->line,
+//               log_message->message);
+//    });
+//  }
   return old_logger;
 }
 
@@ -412,9 +412,9 @@ AbortFunction SetAborter(AbortFunction&& aborter) {
   AbortFunction old_aborter = std::move(Aborter());
   Aborter() = std::move(aborter);
 
-  if (__builtin_available(android 30, *)) {
-    __android_log_set_aborter([](const char* abort_message) { Aborter()(abort_message); });
-  }
+//  if (__builtin_available(android 30, *)) {
+//    __android_log_set_aborter([](const char* abort_message) { Aborter()(abort_message); });
+//  }
   return old_aborter;
 }
 
@@ -500,11 +500,11 @@ LogMessage::~LogMessage() {
 
   // Abort if necessary.
   if (data_->GetSeverity() == FATAL) {
-    if (__builtin_available(android 30, *)) {
-      __android_log_call_aborter(msg.c_str());
-    } else {
+//    if (__builtin_available(android 30, *)) {
+//      __android_log_call_aborter(msg.c_str());
+//    } else {
       Aborter()(msg.c_str());
-    }
+//    }
   }
 }
 
@@ -515,11 +515,11 @@ std::ostream& LogMessage::stream() {
 void LogMessage::LogLine(const char* file, unsigned int line, LogSeverity severity, const char* tag,
                          const char* message) {
   int32_t priority = LogSeverityToPriority(severity);
-  if (__builtin_available(android 30, *)) {
-    __android_log_message log_message = {
-        sizeof(__android_log_message), LOG_ID_DEFAULT, priority, tag, file, line, message};
-    __android_log_write_log_message(&log_message);
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    __android_log_message log_message = {
+//        sizeof(__android_log_message), LOG_ID_DEFAULT, priority, tag, file, line, message};
+//    __android_log_write_log_message(&log_message);
+//  } else {
     if (tag == nullptr) {
       std::lock_guard<std::recursive_mutex> lock(TagLock());
       if (gDefaultTag == nullptr) {
@@ -530,38 +530,38 @@ void LogMessage::LogLine(const char* file, unsigned int line, LogSeverity severi
     } else {
       Logger()(DEFAULT, severity, tag, file, line, message);
     }
-  }
+//  }
 }
 
 LogSeverity GetMinimumLogSeverity() {
-  if (__builtin_available(android 30, *)) {
-    return PriorityToLogSeverity(__android_log_get_minimum_priority());
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    return PriorityToLogSeverity(__android_log_get_minimum_priority());
+//  } else {
     return gMinimumLogSeverity;
-  }
+//  }
 }
 
 bool ShouldLog(LogSeverity severity, const char* tag) {
   // Even though we're not using the R liblog functions in this function, if we're running on Q,
   // we need to fall back to using gMinimumLogSeverity, since __android_log_is_loggable() will not
   // take into consideration the value from SetMinimumLogSeverity().
-  if (__builtin_available(android 30, *)) {
-    int32_t priority = LogSeverityToPriority(severity);
-    return __android_log_is_loggable(priority, tag, ANDROID_LOG_INFO);
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    int32_t priority = LogSeverityToPriority(severity);
+//    return __android_log_is_loggable(priority, tag, ANDROID_LOG_INFO);
+//  } else {
     return severity >= gMinimumLogSeverity;
-  }
+//  }
 }
 
 LogSeverity SetMinimumLogSeverity(LogSeverity new_severity) {
-  if (__builtin_available(android 30, *)) {
-    int32_t priority = LogSeverityToPriority(new_severity);
-    return PriorityToLogSeverity(__android_log_set_minimum_priority(priority));
-  } else {
+//  if (__builtin_available(android 30, *)) {
+//    int32_t priority = LogSeverityToPriority(new_severity);
+//    return PriorityToLogSeverity(__android_log_set_minimum_priority(priority));
+//  } else {
     LogSeverity old_severity = gMinimumLogSeverity;
     gMinimumLogSeverity = new_severity;
     return old_severity;
-  }
+//  }
 }
 
 ScopedLogSeverity::ScopedLogSeverity(LogSeverity new_severity) {