diff -uNr bash-5.0/error.c bash-5.0.mod/error.c
--- bash-5.0/error.c	2018-10-08 22:16:07.000000000 +0300
+++ bash-5.0.mod/error.c	2019-02-20 14:19:39.265261705 +0200
@@ -430,7 +430,7 @@
   static FILE *tracefp = (FILE *)NULL;
 
   if (tracefp == NULL)
-    tracefp = fopen("/tmp/bash-trace.log", "a+");
+    tracefp = fopen("@TERMUX_PREFIX@/tmp/bash-trace.log", "a+");
 
   if (tracefp == NULL)
     tracefp = stderr;