Index: config/readline_check_version.m4
--- config/readline_check_version.m4.orig
+++ config/readline_check_version.m4
@@ -76,7 +76,7 @@ fi
 eval ac_cv_rl_includedir=${ac_cv_rl_prefix}/include
 eval ac_cv_rl_libdir=${ac_cv_rl_prefix}/lib
 
-LIBS="$LIBS -lreadline ${TERMCAP_LIB}"
+LIBS="$LIBS -lereadline ${TERMCAP_LIB}"
 CFLAGS="$CFLAGS -I${ac_cv_rl_includedir}"
 LDFLAGS="$LDFLAGS -L${ac_cv_rl_libdir}"
 
@@ -86,7 +86,7 @@ AC_CACHE_VAL(ac_cv_rl_version,
 #include <stdlib.h>
 #include <readline/readline.h>
 
-main()
+int main(void)
 {
 	FILE *fp;
 	fp = fopen("conftest.rlv", "w");
