diff --git a/configure b/configure
index b10a994e..6040f384 100755
--- a/configure
+++ b/configure
@@ -15224,10 +15224,6 @@ case ${host_os} in
 
         ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
         ;;
-
-        darwin*)
-        ax_pthread_flags="-pthread $ax_pthread_flags"
-        ;;
 esac
 
 # Clang doesn't consider unrecognized options an error unless we specify
diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4
index d383ad5c..0b2718f3 100644
--- a/m4/ax_pthread.m4
+++ b/m4/ax_pthread.m4
@@ -158,10 +158,6 @@ case ${host_os} in
 
         ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
         ;;
-
-        darwin*)
-        ax_pthread_flags="-pthread $ax_pthread_flags"
-        ;;
 esac
 
 # Clang doesn't consider unrecognized options an error unless we specify