diff -uNr bash-5.0/lib/readline/rlconf.h bash-5.0.mod/lib/readline/rlconf.h
--- bash-5.0/lib/readline/rlconf.h	2017-02-21 17:25:30.000000000 +0200
+++ bash-5.0.mod/lib/readline/rlconf.h	2019-02-20 14:16:17.230326111 +0200
@@ -43,7 +43,7 @@
 #define DEFAULT_INPUTRC "~/.inputrc"
 
 /* The ultimate last-ditch filename for an init file -- system-wide. */
-#define SYS_INPUTRC "/etc/inputrc"
+#define SYS_INPUTRC "@TERMUX_PREFIX@/etc/inputrc"
 
 /* If defined, expand tabs to spaces. */
 #define DISPLAY_TABS