diff --git a/ChangeLog b/ChangeLog
index 370110c26c..dfb4d99c4b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Oct  2 13:03:58 2002  WATANABE Hirofumi  <eban@ruby-lang.org>
+
+	* configure.in: set ac_cv_func_setitimer to "no" on Cygwin.
+
 Tue Oct  1 23:48:32 2002  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 	* ext/socket/socket.c (init_sock): no need for special finalizer,
diff --git a/configure.in b/configure.in
index c781213b37..8310f89523 100644
--- a/configure.in
+++ b/configure.in
@@ -250,7 +250,9 @@ human*)		ac_cv_func_getpgrp_void=yes;;
 beos*)		;;
 cygwin*)	rb_cv_have_daylight=no
 		ac_cv_var_tzname=no
-		ac_cv_func__setjmp=no;;
+		ac_cv_func__setjmp=no
+		ac_cv_func_setitimer=no
+		;;
 mingw*)		LIBS="-lwsock32 -lmsvcrt $LIBS"
 		ac_cv_header_a_out_h=no
 		ac_cv_header_pwd_h=no