diff --git a/ChangeLog b/ChangeLog
index f3c5fc94bb..017f735b04 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,9 @@
-Sat Nov 12 02:10:08 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Nov 12 08:36:40 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in, eval.c, intern.h: check fd_mask type.
 
+	* configure.in (socketpair): need to be checked.
+
 Fri Nov 11 19:53:47 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* eval.c, intern.h: failed to compile where NFDBITS is defined but
diff --git a/configure.in b/configure.in
index 687e9e833f..9ecf1ca6e3 100644
--- a/configure.in
+++ b/configure.in
@@ -500,7 +500,7 @@ AC_REPLACE_FUNCS(dup2 memmove strcasecmp strncasecmp strerror strftime\
 		 isnan finite isinf hypot acosh erf)
 AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd\
 	      truncate chsize times utimes fcntl lockf lstat link symlink readlink\
-	      setitimer setruid seteuid setreuid setresuid setproctitle\
+	      setitimer setruid seteuid setreuid setresuid setproctitle socketpair\
 	      setrgid setegid setregid setresgid issetugid pause lchown lchmod\
 	      getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\
 	      getpriority getrlimit setrlimit\