adjtimex.2: Add featute test macro requirements

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2014-05-20 07:11:44 +02:00
parent 37565883e0
commit 5918743bc8
1 changed files with 4 additions and 1 deletions

View File

@ -38,9 +38,12 @@
.SH NAME
adjtimex \- tune kernel clock
.SH SYNOPSIS
.nf
.BR "#define _BSD_SOURCE" " /* See feature_test_macros(7) */"
.B #include <sys/timex.h>
.sp
.BI "int adjtimex(struct timex *" "buf" );
.fi
.SH DESCRIPTION
Linux uses David L. Mills' clock adjustment algorithm (see RFC\ 1305).
The system call