diff -uNr pinentry-1.1.0/pinentry/pinentry.c pinentry-1.1.0.mod/pinentry/pinentry.c
--- pinentry-1.1.0/pinentry/pinentry.c	2017-12-03 18:13:15.000000000 +0200
+++ pinentry-1.1.0.mod/pinentry/pinentry.c	2018-10-05 23:01:15.445377981 +0300
@@ -258,8 +258,10 @@
     {
       if (! lc_ctype_unknown_warning)
 	{
+#ifndef __ANDROID__
 	  fprintf (stderr, "%s: no LC_CTYPE known - assuming UTF-8\n",
 		   this_pgmname);
+#endif
 	  lc_ctype_unknown_warning = 1;
 	}
       return strdup (text);
