diff -urN ../exim-4.89.orig/src/exim.c ./src/exim.c
--- ../exim-4.89.orig/src/exim.c	2017-03-04 23:21:35.000000000 +0200
+++ ./src/exim.c	2017-08-19 19:44:08.696510000 +0300
@@ -1211,7 +1211,7 @@
 void *dlhandle;
 void *dlhandle_curses = dlopen("libcurses." DYNLIB_FN_EXT, RTLD_GLOBAL|RTLD_LAZY);
 
-dlhandle = dlopen("libreadline." DYNLIB_FN_EXT, RTLD_GLOBAL|RTLD_NOW);
+dlhandle = dlopen("/usr/lib/libreadline." DYNLIB_FN_EXT, RTLD_GLOBAL|RTLD_NOW);
 if (dlhandle_curses != NULL) dlclose(dlhandle_curses);
 
 if (dlhandle != NULL)