Index: libedit/configure.ac
===================================================================
--- libedit.orig/configure.ac
+++ libedit/configure.ac
@@ -117,24 +117,38 @@ AC_PROG_GCC_TRADITIONAL
 #AC_FUNC_REALLOC
 AC_TYPE_SIGNAL
 AC_FUNC_STAT
-AC_CHECK_FUNCS([endpwent isascii memchr memset re_comp regcomp strcasecmp strchr strcspn strdup strerror strrchr strstr strtol issetugid wcsdup strlcpy strlcat getline vis strvis strunvis __secure_getenv secure_getenv])
+AC_CHECK_FUNCS([endpwent isascii memchr memset re_comp regcomp strcasecmp strchr strcspn strdup strerror strrchr strstr strtol issetugid getline __secure_getenv secure_getenv])
+
+# fgetln
+AC_CHECK_FUNCS(fgetln, found_fgetln=yes, found_fgetln=no)
+AM_CONDITIONAL(HAVE_FGETLN, [test "x$found_fgetln" = xyes])
 
 # strlcpy
-AC_CHECK_FUNC(strlcpy, found_strlcpy=yes, found_strlcpy=no)
+AC_CHECK_FUNCS(strlcpy, found_strlcpy=yes, found_strlcpy=no)
 AM_CONDITIONAL(HAVE_STRLCPY, [test "x$found_strlcpy" = xyes])
 
 # strlcat
-AC_CHECK_FUNC(strlcat, found_strlcat=yes, found_strlcat=no)
+AC_CHECK_FUNCS(strlcat, found_strlcat=yes, found_strlcat=no)
 AM_CONDITIONAL(HAVE_STRLCAT, [test "x$found_strlcat" = xyes])
 
 # vis
-AC_CHECK_FUNC(vis, found_vis=yes, found_vis=no)
+AC_CHECK_FUNCS(vis, found_vis=yes, found_vis=no)
 AM_CONDITIONAL(HAVE_VIS, [test "x$found_vis" = xyes])
 
 # unvis
-AC_CHECK_FUNC(unvis, found_unvis=yes, found_unvis=no)
+AC_CHECK_FUNCS(unvis, found_unvis=yes, found_unvis=no)
 AM_CONDITIONAL(HAVE_UNVIS, [test "x$found_unvis" = xyes])
 
+# wcsdup
+AC_CHECK_FUNCS(wcsdup, found_wcsdup=yes, found_wcsdup=no)
+AM_CONDITIONAL(HAVE_WCSDUP, [test "x$found_wcsdup" = xyes])
+
+PKG_CHECK_MODULES(LIBBSD, [libbsd-overlay],
+  [CFLAGS="$CFLAGS $LIBBSD_CFLAGS"
+   LIBS="$LIBS $LIBBSD_LIBS"
+   MODULES="$MODULES libbsd"
+   AC_SUBST([MODULES])]
+)
 
 EL_GETPW_R_POSIX
 EL_GETPW_R_DRAFT