--- ./base/debug/stack_trace.cc
+++ ./base/debug/stack_trace.cc
@@ -233,7 +233,7 @@
 }
 std::string StackTrace::ToStringWithPrefix(const char* prefix_string) const {
   std::stringstream stream;
-#if !defined(__UCLIBC__) && !defined(_AIX)
+#if defined(__GLIBC__) && !defined(_AIX)
   OutputToStreamWithPrefix(&stream, prefix_string);
 #endif
   return stream.str();
--- ./net/socket/udp_socket_posix.cc
+++ ./net/socket/udp_socket_posix.cc
@@ -1191,7 +1191,7 @@
     msg_iov->push_back({const_cast<char*>(buffer->data()), buffer->length()});
   msgvec->reserve(buffers.size());
   for (size_t j = 0; j < buffers.size(); j++)
-    msgvec->push_back({{nullptr, 0, &msg_iov[j], 1, nullptr, 0, 0}, 0});
+    msgvec->push_back({{nullptr, 0, &msg_iov[j], 1, 0, 0, 0}, 0});
   int result = HANDLE_EINTR(Sendmmsg(fd, &msgvec[0], buffers.size(), 0));
   SendResult send_result(0, 0, std::move(buffers));
   if (result < 0) {