diff -uNr libsndfile/src/common.c libsndfile.mod/src/common.c
--- libsndfile/src/common.c	2017-10-31 10:30:54.000000000 +0200
+++ libsndfile.mod/src/common.c	2018-06-19 17:08:45.344367164 +0300
@@ -1730,7 +1730,7 @@
 		tmpdir = getenv ("TEMP") ;
 	else
 	{	tmpdir = getenv ("TMPDIR") ;
-		tmpdir = tmpdir == NULL ? "/tmp" : tmpdir ;
+		tmpdir = tmpdir == NULL ? "@TERMUX_PREFIX@/tmp" : tmpdir ;
 		} ;
 
 	if (tmpdir && access (tmpdir, R_OK | W_OK | X_OK) == 0)