.\" Updated 2008-02-10, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.77
.\" Updated 2008-11-09, Akihiro MOTOKI, LDP v3.13
.\"
-.TH PIPE 2 2009-09-15 "Linux" "Linux Programmer's Manual"
+.TH PIPE 2 2010-09-10 "Linux" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O pipe, pipe2 \- create pipe
.sp
.BI "int pipe(int " pipefd "[2]);"
.sp
-.B #define _GNU_SOURCE
+.\"O .BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
+.BR "#define _GNU_SOURCE" " /* feature_test_macros(7) »²¾È */"
.B #include <unistd.h>
.sp
.BI "int pipe2(int " pipefd "[2], int " flags );