.SH SYNOPSIS
.nf
.B #include <unistd.h>
-.PP
+.P
.BI "int setgid(gid_t " gid );
.fi
.SH DESCRIPTION
.B CAP_SETGID
capability in its user namespace),
the real GID and saved set-group-ID are also set.
-.PP
+.P
Under Linux,
.BR setgid ()
is implemented like the POSIX version with the
POSIX.1-2008.
.SH HISTORY
POSIX.1-2001, SVr4.
-.PP
+.P
The original Linux
.BR setgid ()
system call supported only 16-bit group IDs.