Hello Ahmad On 12 November 2017 at 14:29, Ahmad Fatoum <ahmad@xxxxxx> wrote: > vfork(2), getpid(2) and others which return pid_t already do this. Thanks for the patch. But the fix should go the other way: POSIX says that <unistd.h> should also define 'pid_t', so that vfork() and getpid() do *not* need <sys/types.h>. So, I've updates those two pages accordingly. Thanks Michael > Cc: linux-man@xxxxxxxxxxxxxxx > Signed-off-by: Ahmad Fatoum <ahmad@xxxxxx> > --- > man2/fork.2 | 2 ++ > man2/getsid.2 | 2 ++ > man2/setpgid.2 | 2 ++ > man2/setsid.2 | 2 ++ > 4 files changed, 8 insertions(+) > > diff --git a/man2/fork.2 b/man2/fork.2 > index 931e8f76f..235a88e50 100644 > --- a/man2/fork.2 > +++ b/man2/fork.2 > @@ -40,6 +40,8 @@ > .SH NAME > fork \- create a child process > .SH SYNOPSIS > +.B #include <sys/types.h> > +.br > .B #include <unistd.h> > .PP > .B pid_t fork(void); > diff --git a/man2/getsid.2 b/man2/getsid.2 > index 9f2bf9f8d..a912b651f 100644 > --- a/man2/getsid.2 > +++ b/man2/getsid.2 > @@ -28,6 +28,8 @@ > .SH NAME > getsid \- get session ID > .SH SYNOPSIS > +.B #include <sys/types.h> > +.br > .B #include <unistd.h> > .PP > .BI "pid_t getsid(pid_t" " pid" ); > diff --git a/man2/setpgid.2 b/man2/setpgid.2 > index 03a83a845..be451e765 100644 > --- a/man2/setpgid.2 > +++ b/man2/setpgid.2 > @@ -49,6 +49,8 @@ > .SH NAME > setpgid, getpgid, setpgrp, getpgrp \- set/get process group > .SH SYNOPSIS > +.B #include <sys/types.h> > +.br > .B #include <unistd.h> > .PP > .BI "int setpgid(pid_t " pid ", pid_t " pgid ); > diff --git a/man2/setsid.2 b/man2/setsid.2 > index 91150da77..d2f4cc3b2 100644 > --- a/man2/setsid.2 > +++ b/man2/setsid.2 > @@ -33,6 +33,8 @@ > setsid \- creates a session and sets the process group ID > .SH SYNOPSIS > .ad l > +.B #include <sys/types.h> > +.br > .B #include <unistd.h> > .PP > .B pid_t setsid(void); > -- > 2.14.3 > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html