diff -Naur orig/configure external_vpx/configure
--- orig/configure	2022-07-06 09:22:04 -0600
+++ external_vpx/configure	2022-07-06 09:24:12 -0600
@@ -270,7 +270,6 @@
 HAVE_LIST="
     ${ARCH_EXT_LIST}
     vpx_ports
-    pthread_h
     unistd_h
 "
 EXPERIMENT_LIST="