--- a/src/mongo/util/log.cpp
+++ b/src/mongo/util/log.cpp
@@ -101,9 +101,7 @@
     char buf[kBuflen];
     char* msg{nullptr};
 
-#if defined(__GNUC__) && defined(_GNU_SOURCE)
-    msg = strerror_r(errNumber, buf, kBuflen);
-#elif defined(_WIN32)
+#if defined(_WIN32)
 
     LPWSTR errorText = nullptr;
     FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |