-diff -urpa postgresql-10.5.orig/src/bin/pg_upgrade/option.c postgresql-10.5/src/bin/pg_upgrade/option.c
---- postgresql-10.5.orig/src/bin/pg_upgrade/option.c 2018-08-22 19:57:55.237373015 +0000
-+++ postgresql-10.5/src/bin/pg_upgrade/option.c 2018-08-22 19:59:10.944372163 +0000
-@@ -474,8 +474,14 @@
+diff -urpa postgresql-13.1.orig/src/bin/pg_upgrade/option.c postgresql-13.1/src/bin/pg_upgrade/option.c
+--- postgresql-13.1.orig/src/bin/pg_upgrade/option.c 2020-11-09 23:24:30.000000000 +0100
++++ postgresql-13.1/src/bin/pg_upgrade/option.c 2020-12-03 20:58:30.431778786 +0100
+@@ -476,8 +476,14 @@ get_sock_dir(ClusterInfo *cluster, bool
*/
if (GET_MAJOR_VERSION(cluster->major_version) >= 901)
{
else
{
/*
-diff -urpa postgresql-10.5.orig/src/include/pg_config_manual.h postgresql-10.5/src/include/pg_config_manual.h
---- postgresql-10.5.orig/src/include/pg_config_manual.h 2018-08-22 19:57:55.095373017 +0000
-+++ postgresql-10.5/src/include/pg_config_manual.h 2018-08-22 19:58:30.664372616 +0000
-@@ -181,7 +181,7 @@
- * here's where to twiddle it. You can also override this at runtime
- * with the postmaster's -k switch.
+diff -urpa postgresql-13.1.orig/src/include/pg_config_manual.h postgresql-13.1/src/include/pg_config_manual.h
+--- postgresql-13.1.orig/src/include/pg_config_manual.h 2020-11-09 23:24:30.000000000 +0100
++++ postgresql-13.1/src/include/pg_config_manual.h 2020-12-03 20:59:32.262778786 +0100
+@@ -201,7 +201,7 @@
+ * support them yet.
*/
+ #ifndef WIN32
-#define DEFAULT_PGSOCKET_DIR "/tmp"
+#define DEFAULT_PGSOCKET_DIR "/var/run/postgresql"
-
- /*
- * This is the default event source for Windows event log.
+ #else
+ #define DEFAULT_PGSOCKET_DIR ""
+ #endif