diff --git a/configure/CONFIG_SITE b/configure/CONFIG_SITE
index 0502468af..4aff5d9ad 100644
--- a/configure/CONFIG_SITE
+++ b/configure/CONFIG_SITE
@@ -157,7 +157,7 @@ CROSS_WARN=YES
 #  NOTE: Set to YES only if you have existing R3.13 extensions to be
 #  built with this base
 #
-#COMPAT_TOOLS_313=YES
+COMPAT_TOOLS_313=YES
 
 #  Create and/or install files for R3.13 ioc application and extension builds?
 #  must be either YES or NO
@@ -174,7 +174,7 @@ COMPAT_313=YES
 INSTALL_LOCATION=/usr/local/epics/base-3.14.12
 
 # Use POSIX thread priority scheduling (YES or NO)
-USE_POSIX_THREAD_PRIORITY_SCHEDULING = NO
+USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES
 
 #  Site version number, if set will append '-' and this string to the
 #  EPICS version number string that is reported by many tools