--- ./src/bin/pg_upgrade/test.sh	2016-10-25 01:38:51.000000000 +0530
+++ ../test.sh	2017-01-23 10:08:52.568213209 +0530
@@ -44,15 +44,15 @@
 		if [ "x$PGHOST" = x ]; then
 			{
 				dir=`(umask 077 &&
-					  mktemp -d /tmp/pg_upgrade_check-XXXXXX) 2>/dev/null` &&
+					  mktemp -d @TERMUX_PREFIX@/tmp/pg_upgrade_check-XXXXXX) 2>/dev/null` &&
 				[ -d "$dir" ]
 			} ||
 			{
-				dir=/tmp/pg_upgrade_check-$$-$RANDOM
+				dir=@TERMUX_PREFIX@/tmp/pg_upgrade_check-$$-$RANDOM
 				(umask 077 && mkdir "$dir")
 			} ||
 			{
-				echo "could not create socket temporary directory in \"/tmp\""
+				echo "could not create socket temporary directory in \"@TERMUX_PREFIX@/tmp\""
 				exit 1
 			}