diff -u -r ../parallel-20160222/src/parallel ./src/parallel
--- ../parallel-20160222/src/parallel	2016-02-21 16:24:56.000000000 -0500
+++ ./src/parallel	2016-04-19 16:50:52.123488947 -0400
@@ -1224,11 +1224,11 @@
     $Global::trim = 'n';
     $Global::max_jobs_running = 0;
     $Global::job_already_run = '';
-    $ENV{'TMPDIR'} ||= "/tmp";
+    $ENV{'TMPDIR'} ||= "@TERMUX_PREFIX@/tmp";
     if(not $ENV{HOME}) {
 	# $ENV{HOME} is sometimes not set if called from PHP
-	::warning("\$HOME not set. Using /tmp.");
-	$ENV{HOME} = "/tmp";
+	::warning("\$HOME not set. Using @TERMUX_HOME@.");
+	$ENV{HOME} = "@TERMUX_HOME@";
     }
 }