diff --git a/sys/compat/ibcs2/ibcs2_errno.c b/sys/compat/ibcs2/ibcs2_errno.c
index 48cb88eb9c16..ec84dd243904 100644
--- a/sys/compat/ibcs2/ibcs2_errno.c
+++ b/sys/compat/ibcs2/ibcs2_errno.c
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_errno.c,v 1.2 1996/05/03 17:05:16 christos Exp $	*/
+
 /*
  * ibcs2_errno.c
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/ibcs2/ibcs2_errno.h b/sys/compat/ibcs2/ibcs2_errno.h
index 30ed8241ae28..501df05bdab9 100644
--- a/sys/compat/ibcs2/ibcs2_errno.h
+++ b/sys/compat/ibcs2/ibcs2_errno.h
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_errno.h,v 1.2 1996/05/03 17:05:18 christos Exp $	*/
+
 /*
  * ibcs2_errno.h
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/ibcs2/ibcs2_error.c b/sys/compat/ibcs2/ibcs2_error.c
index 48cb88eb9c16..4a5861d61380 100644
--- a/sys/compat/ibcs2/ibcs2_error.c
+++ b/sys/compat/ibcs2/ibcs2_error.c
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_error.c,v 1.2 1996/05/03 17:05:16 christos Exp $	*/
+
 /*
  * ibcs2_errno.c
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/ibcs2/ibcs2_exec.c b/sys/compat/ibcs2/ibcs2_exec.c
index 1e69c9d61011..03081f49917b 100644
--- a/sys/compat/ibcs2/ibcs2_exec.c
+++ b/sys/compat/ibcs2/ibcs2_exec.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ibcs2_exec.c,v 1.10 1995/06/24 20:18:55 christos Exp $	*/
+/*	$NetBSD: ibcs2_exec.c,v 1.11 1996/05/03 17:05:19 christos Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
@@ -67,6 +67,10 @@ int exec_ibcs2_xout_prep_zmagic __P((struct proc *, struct exec_package *,
 				     struct xexec *, struct xext *));
 int exec_ibcs2_xout_setup_stack __P((struct proc *, struct exec_package *));
 int coff_load_shlib __P((struct proc *, char *, struct exec_package *));
+static int coff_find_section __P((struct proc *, struct vnode *, 
+				  struct coff_filehdr *, struct coff_scnhdr *,
+				  int));
+	
 
 extern int bsd2ibcs_errno[];
 extern struct sysent ibcs2_sysent[];
@@ -108,8 +112,6 @@ exec_ibcs2_coff_makecmds(p, epp)
 	struct proc *p;
 	struct exec_package *epp;
 {
-	u_long midmag, magic;
-	u_short mid;
 	int error;
 	struct coff_filehdr *fp = epp->ep_hdr;
 	struct coff_aouthdr *ap;
@@ -141,7 +143,6 @@ exec_ibcs2_coff_makecmds(p, epp)
 	if (error)
 		kill_vmcmds(&epp->ep_vmcmds);
 
-bad:
 	return error;
 }
 
@@ -286,10 +287,10 @@ coff_find_section(p, vp, fp, sh, s_type)
 	pos = COFF_HDR_SIZE;
 	for (i = 0; i < fp->f_nscns; i++, pos += sizeof(struct coff_scnhdr)) {
 		siz = sizeof(struct coff_scnhdr);
-		if (error = vn_rdwr(UIO_READ, vp, (caddr_t) sh,
-				    siz, pos,
-				    UIO_SYSSPACE, IO_NODELOCKED, p->p_ucred,
-				    &resid, p)) {
+		error = vn_rdwr(UIO_READ, vp, (caddr_t) sh,
+		    siz, pos, UIO_SYSSPACE, IO_NODELOCKED, p->p_ucred,
+		    &resid, p);
+		if (error) {
 			DPRINTF(("section hdr %d read error %d\n", i, error));
 			return error;
 		}
@@ -478,15 +479,15 @@ coff_load_shlib(p, path, epp)
 	IBCS2_CHECK_ALT_EXIST(p, &sg, path);
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, path, p);
 	/* first get the vnode */
-	if (error = namei(&nd)) {
+	if ((error = namei(&nd)) != 0) {
 		DPRINTF(("coff_load_shlib: can't find library %s\n", path));
 		return error;
 	}
 
 	siz = sizeof(struct coff_filehdr);
-	if (error = vn_rdwr(UIO_READ, nd.ni_vp, (caddr_t) fhp, siz, 0,
-			    UIO_SYSSPACE, IO_NODELOCKED, p->p_ucred,
-			    &resid, p)) {
+	error = vn_rdwr(UIO_READ, nd.ni_vp, (caddr_t) fhp, siz, 0,
+	    UIO_SYSSPACE, IO_NODELOCKED, p->p_ucred, &resid, p);
+	if (error) {
 	    DPRINTF(("filehdr read error %d\n", error));
 	    vrele(nd.ni_vp);
 	    return error;
@@ -558,8 +559,6 @@ exec_ibcs2_xout_makecmds(p, epp)
 	struct proc *p;
 	struct exec_package *epp;
 {
-	u_long midmag, magic;
-	u_short mid;
 	int error;
 	struct xexec *xp = epp->ep_hdr;
 	struct xext *xep;
diff --git a/sys/compat/ibcs2/ibcs2_fcntl.c b/sys/compat/ibcs2/ibcs2_fcntl.c
index a40d91b72e7b..14681ae2d3b6 100644
--- a/sys/compat/ibcs2/ibcs2_fcntl.c
+++ b/sys/compat/ibcs2/ibcs2_fcntl.c
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_fcntl.c,v 1.6 1996/05/03 17:05:20 christos Exp $	*/
+
 /*
  * Copyright (c) 1995 Scott Bartram
  * All rights reserved.
@@ -46,6 +48,12 @@
 #include <compat/ibcs2/ibcs2_syscallargs.h>
 #include <compat/ibcs2/ibcs2_util.h>
 
+static int cvt_o_flags __P((int));
+static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *));
+static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *));
+static int ioflags2oflags __P((int));
+static int oflags2ioflags __P((int));
+
 static int
 cvt_o_flags(flags)
 	int flags;
@@ -243,7 +251,7 @@ ibcs2_sys_eaccess(p, v, retval)
 
         NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
             SCARG(uap, path), p);
-        if (error = namei(&nd))
+        if ((error = namei(&nd)) != 0)
                 return error;
         vp = nd.ni_vp;
 
@@ -307,7 +315,7 @@ ibcs2_sys_fcntl(p, v, retval)
 	case IBCS2_F_SETFL:
 		SCARG(&fa, fd) = SCARG(uap, fd);
 		SCARG(&fa, cmd) = F_SETFL;
-		SCARG(&fa, arg) = (void *)ioflags2oflags(SCARG(uap, arg));
+		SCARG(&fa, arg) = (void *)ioflags2oflags((int) SCARG(uap, arg));
 		return sys_fcntl(p, &fa, retval);
 
 	case IBCS2_F_GETLK:
diff --git a/sys/compat/ibcs2/ibcs2_ioctl.c b/sys/compat/ibcs2/ibcs2_ioctl.c
index 61729dc05b18..2da1fbfc7850 100644
--- a/sys/compat/ibcs2/ibcs2_ioctl.c
+++ b/sys/compat/ibcs2/ibcs2_ioctl.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ibcs2_ioctl.c,v 1.10 1995/12/26 17:56:36 mycroft Exp $	*/
+/*	$NetBSD: ibcs2_ioctl.c,v 1.11 1996/05/03 17:05:22 christos Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
@@ -111,6 +111,11 @@ static u_long s2btab[] = {
 	38400,
 };
 
+static void stios2btios __P((struct ibcs2_termios *, struct termios *));
+static void btios2stios __P((struct termios *, struct ibcs2_termios *));
+static void stios2stio __P((struct ibcs2_termios *, struct ibcs2_termio *));
+static void stio2stios __P((struct ibcs2_termio *, struct ibcs2_termios *));
+
 static void
 stios2btios(st, bt)
 	struct ibcs2_termios *st;
@@ -336,7 +341,7 @@ ibcs2_sys_ioctl(p, v, retval)
 	} */ *uap = v;
 	struct filedesc *fdp = p->p_fd;
 	struct file *fp;
-	int (*ctl)();
+	int (*ctl) __P((struct file *, u_long, caddr_t, struct proc *));
 	int error;
 
 	if (SCARG(uap, fd) < 0 || SCARG(uap, fd) >= fdp->fd_nfiles ||
@@ -504,7 +509,7 @@ ibcs2_sys_ioctl(p, v, retval)
 
 		SCARG(&sa, pid) = 0;
 		SCARG(&sa, pgid) = (int)SCARG(uap, data);
-		if (error = sys_setpgid(p, &sa, retval))
+		if ((error = sys_setpgid(p, &sa, retval)) != 0)
 			return error;
 		return 0;
 	    }
diff --git a/sys/compat/ibcs2/ibcs2_ipc.c b/sys/compat/ibcs2/ibcs2_ipc.c
index d8cc2e2844c9..3744170d3136 100644
--- a/sys/compat/ibcs2/ibcs2_ipc.c
+++ b/sys/compat/ibcs2/ibcs2_ipc.c
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_ipc.c,v 1.6 1996/05/03 17:05:23 christos Exp $	*/
+
 /*
  * Copyright (c) 1995 Scott Bartram
  * All rights reserved.
@@ -82,10 +84,13 @@ struct ibcs2_msqid_ds {
 	ibcs2_time_t msg_ctime;
 };
 
+static void cvt_msqid2imsqid __P((struct msqid_ds *, struct ibcs2_msqid_ds *));
+static void cvt_imsqid2msqid __P((struct ibcs2_msqid_ds *, struct msqid_ds *));
+
 static void
 cvt_msqid2imsqid(bp, ibp)
-struct msqid_ds *bp;
-struct ibcs2_msqid_ds *ibp;
+	struct msqid_ds *bp;
+	struct ibcs2_msqid_ds *ibp;
 {
 	ibp->msg_perm = bp->msg_perm;
 	ibp->msg_first = bp->msg_first;
@@ -103,8 +108,8 @@ struct ibcs2_msqid_ds *ibp;
 
 static void
 cvt_imsqid2msqid(ibp, bp)
-struct ibcs2_msqid_ds *ibp;
-struct msqid_ds *bp;
+	struct ibcs2_msqid_ds *ibp;
+	struct msqid_ds *bp;
 {
 	bp->msg_perm = ibp->msg_perm;
 	bp->msg_first = ibp->msg_first;
@@ -154,13 +159,14 @@ ibcs2_sys_msgsys(p, v, retval)
 		case IBCS2_IPC_STAT:
 			error = compat_10_sys_msgsys(p, &margs, retval);
 			if (!error)
-				cvt_msqid2imsqid(SCARG(&margs, a4),
+				cvt_msqid2imsqid((struct msqid_ds *)
+				    SCARG(&margs, a4),
 				    (struct ibcs2_msqid_ds *)SCARG(uap, a4));
 			return error;
 		case IBCS2_IPC_SET:
 			cvt_imsqid2msqid((struct ibcs2_msqid_ds *)SCARG(uap,
 									a4),
-					 SCARG(&margs, a4));
+					 (struct msqid_ds *) SCARG(&margs, a4));
 			return compat_10_sys_msgsys(p, &margs, retval);
 		case IBCS2_IPC_RMID:
 			return compat_10_sys_msgsys(p, &margs, retval);
@@ -200,10 +206,16 @@ struct ibcs2_sem {
 	u_short semzcnt;
 };
 
+static void cvt_semid2isemid __P((struct semid_ds *, struct ibcs2_semid_ds *));
+static void cvt_isemid2semid __P((struct ibcs2_semid_ds *, struct semid_ds *));
+#ifdef notdef
+static void cvt_sem2isem __P((struct sem *, struct ibcs2_sem *));
+static void cvt_isem2sem __P((struct ibcs2_sem *, struct sem *));
+
 static void
 cvt_sem2isem(bp, ibp)
-struct sem *bp;
-struct ibcs2_sem *ibp;
+	struct sem *bp;
+	struct ibcs2_sem *ibp;
 {
 	ibp->semval = bp->semval;
 	ibp->sempid = bp->sempid;
@@ -214,8 +226,8 @@ struct ibcs2_sem *ibp;
 
 static void
 cvt_isem2sem(ibp, bp)
-struct ibcs2_sem *ibp;
-struct sem *bp;
+	struct ibcs2_sem *ibp;
+	struct sem *bp;
 {
 	bp->semval = ibp->semval;
 	bp->sempid = ibp->sempid;
@@ -223,11 +235,12 @@ struct sem *bp;
 	bp->semzcnt = ibp->semzcnt;
 	return;
 }
+#endif
 
 static void
 cvt_semid2isemid(bp, ibp)
-struct semid_ds *bp;
-struct ibcs2_semid_ds *ibp;
+	struct semid_ds *bp;
+	struct ibcs2_semid_ds *ibp;
 {
 	ibp->sem_perm = bp->sem_perm;
 	ibp->sem_base = (struct ibcs2_sem *)bp->sem_base;
@@ -239,8 +252,8 @@ struct ibcs2_semid_ds *ibp;
 
 static void
 cvt_isemid2semid(ibp, bp)
-struct ibcs2_semid_ds *ibp;
-struct semid_ds *bp;
+	struct ibcs2_semid_ds *ibp;
+	struct semid_ds *bp;
 {
 	bp->sem_perm = ibp->sem_perm;
 	bp->sem_base = (struct sem *)ibp->sem_base;
@@ -337,10 +350,13 @@ struct ibcs2_shmid_ds {
 	ibcs2_time_t shm_ctime;
 };
 
+static void cvt_shmid2ishmid __P((struct shmid_ds *, struct ibcs2_shmid_ds *));
+static void cvt_ishmid2shmid __P((struct ibcs2_shmid_ds *, struct shmid_ds *));
+
 static void
 cvt_shmid2ishmid(bp, ibp)
-struct shmid_ds *bp;
-struct ibcs2_shmid_ds *ibp;
+	struct shmid_ds *bp;
+	struct ibcs2_shmid_ds *ibp;
 {
 	ibp->shm_perm = bp->shm_perm;
 	ibp->shm_segsz = bp->shm_segsz;
@@ -356,8 +372,8 @@ struct ibcs2_shmid_ds *ibp;
 
 static void
 cvt_ishmid2shmid(ibp, bp)
-struct ibcs2_shmid_ds *ibp;
-struct shmid_ds *bp;
+	struct ibcs2_shmid_ds *ibp;
+	struct shmid_ds *bp;
 {
 	bp->shm_perm = ibp->shm_perm;
 	bp->shm_segsz = ibp->shm_segsz;
diff --git a/sys/compat/ibcs2/ibcs2_misc.c b/sys/compat/ibcs2/ibcs2_misc.c
index 6641a4364631..0b7255b368c2 100644
--- a/sys/compat/ibcs2/ibcs2_misc.c
+++ b/sys/compat/ibcs2/ibcs2_misc.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ibcs2_misc.c,v 1.14 1996/01/07 06:11:13 mycroft Exp $	*/
+/*	$NetBSD: ibcs2_misc.c,v 1.15 1996/05/03 17:05:25 christos Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
@@ -114,9 +114,11 @@ ibcs2_sys_ulimit(p, v, retval)
 		syscallarg(int) cmd;
 		syscallarg(int) newlimit;
 	} */ *uap = v;
+#ifdef notyet
 	int error;
 	struct rlimit rl;
 	struct sys_setrlimit_args sra;
+#endif
 #define IBCS2_GETFSIZE		1
 #define IBCS2_SETFSIZE		2
 #define IBCS2_GETPSIZE		3
@@ -163,7 +165,7 @@ ibcs2_sys_waitsys(p, v, retval)
 		syscallarg(int) a2;
 		syscallarg(int) a3;
 	} */ *uap = v;
-	int error, status;
+	int error;
 	struct sys_wait4_args w4;
 #define WAITPID_EFLAGS	0x8c4	/* OF, SF, ZF, PF */
 	
@@ -246,6 +248,7 @@ ibcs2_sys_mount(p, v, retval)
 	void *v;
 	register_t *retval;
 {
+#ifdef notyet
 	struct ibcs2_sys_mount_args /* {
 		syscallarg(char *) special;
 		syscallarg(char *) dir;
@@ -254,7 +257,6 @@ ibcs2_sys_mount(p, v, retval)
 		syscallarg(char *) data;
 		syscallarg(int) len;
 	} */ *uap = v;
-#ifdef notyet
 	int oflags = SCARG(uap, flags), nflags, error;
 	char fsname[MFSNAMELEN];
 
@@ -467,7 +469,7 @@ ibcs2_sys_read(p, v, retval)
 	u_long *cookiebuf, *cookie;
 	int ncookies;
 
-	if (error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) {
+	if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) {
 		if (error == EINVAL)
 			return sys_read(p, uap, retval);
 		else
@@ -499,8 +501,9 @@ again:
 	 * First we read into the malloc'ed buffer, then
 	 * we massage it into user space, one record at a time.
 	 */
-	if (error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, cookiebuf,
-				ncookies)) {
+	error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, cookiebuf,
+	    ncookies);
+	if (error) {
 		DPRINTF(("VOP_READDIR failed: %d\n", error));
 		goto out;
 	}
@@ -536,7 +539,8 @@ again:
 		idb.ino = (bdp->d_fileno > 0xfffe) ? 0xfffe : bdp->d_fileno;
 		(void)copystr(bdp->d_name, idb.name, 14, &size);
 		bzero(idb.name + size, 14 - size);
-		if (error = copyout(&idb, outp, sizeof(struct ibcs2_direct)))
+		error = copyout(&idb, outp, sizeof(struct ibcs2_direct));
+		if (error)
 			goto out;
 		/* advance past this real entry */
 		off = *cookie++;	/* each entry points to the next */
@@ -596,7 +600,7 @@ ibcs2_sys_getgroups(p, v, retval)
 		syscallarg(ibcs2_gid_t *) gidset;
 	} */ *uap = v;
 	int error, i;
-	ibcs2_gid_t igid, *iset;
+	ibcs2_gid_t *iset = NULL;
 	struct sys_getgroups_args sa;
 	gid_t *gp;
 	caddr_t sg = stackgap_init(p->p_emul);
@@ -608,7 +612,7 @@ ibcs2_sys_getgroups(p, v, retval)
 		iset = stackgap_alloc(&sg, SCARG(uap, gidsetsize) *
 				      sizeof(ibcs2_gid_t));
 	}
-	if (error = sys_getgroups(p, &sa, retval))
+	if ((error = sys_getgroups(p, &sa, retval)) != 0)
 		return error;
 	for (i = 0, gp = SCARG(&sa, gidset); i < retval[0]; i++)
 		iset[i] = (ibcs2_gid_t)*gp++;
@@ -630,7 +634,7 @@ ibcs2_sys_setgroups(p, v, retval)
 		syscallarg(ibcs2_gid_t *) gidset;
 	} */ *uap = v;
 	int error, i;
-	ibcs2_gid_t igid, *iset;
+	ibcs2_gid_t *iset;
 	struct sys_setgroups_args sa;
 	gid_t *gp;
 	caddr_t sg = stackgap_init(p->p_emul);
@@ -641,9 +645,9 @@ ibcs2_sys_setgroups(p, v, retval)
 	iset = stackgap_alloc(&sg, SCARG(&sa, gidsetsize) *
 			      sizeof(ibcs2_gid_t *));
 	if (SCARG(&sa, gidsetsize)) {
-		if (error = copyin((caddr_t)SCARG(uap, gidset), (caddr_t)iset, 
-				   sizeof(ibcs2_gid_t *) *
-				   SCARG(uap, gidsetsize)))
+		error = copyin((caddr_t)SCARG(uap, gidset), (caddr_t)iset, 
+		    sizeof(ibcs2_gid_t *) * SCARG(uap, gidsetsize));
+		if (error)
 			return error;
 	}
 	for (i = 0, gp = SCARG(&sa, gidset); i < SCARG(&sa, gidsetsize); i++)
@@ -774,7 +778,7 @@ ibcs2_sys_sysconf(p, v, retval)
 
 		SCARG(&ga, which) = RLIMIT_NPROC;
 		SCARG(&ga, rlp) = stackgap_alloc(&sg, sizeof(struct rlimit *));
-		if (error = sys_getrlimit(p, &ga, retval))
+		if ((error = sys_getrlimit(p, &ga, retval)) != 0)
 			return error;
 		*retval = SCARG(&ga, rlp)->rlim_cur;
 		return 0;
@@ -794,7 +798,7 @@ ibcs2_sys_sysconf(p, v, retval)
 
 		SCARG(&ga, which) = RLIMIT_NOFILE;
 		SCARG(&ga, rlp) = stackgap_alloc(&sg, sizeof(struct rlimit *));
-		if (error = sys_getrlimit(p, &ga, retval))
+		if ((error = sys_getrlimit(p, &ga, retval)) != 0)
 			return error;
 		*retval = SCARG(&ga, rlp)->rlim_cur;
 		return 0;
@@ -832,7 +836,7 @@ ibcs2_sys_sysconf(p, v, retval)
 	SCARG(&sa, oldlenp) = &len;
 	SCARG(&sa, new) = NULL;
 	SCARG(&sa, newlen) = 0;
-	if (error = sys___sysctl(p, &sa, retval))
+	if ((error = sys___sysctl(p, &sa, retval)) != 0)
 		return error;
 	*retval = value;
 	return 0;
@@ -876,12 +880,14 @@ ibcs2_sys_getmsg(p, v, retval)
 	void *v;
 	register_t *retval;
 {
+#ifdef notyet
 	struct ibcs2_sys_getmsg_args /* {
 		syscallarg(int) fd;
 		syscallarg(struct ibcs2_stropts *) ctl;
 		syscallarg(struct ibcs2_stropts *) dat;
 		syscallarg(int *) flags;
 	} */ *uap = v;
+#endif
 
 	return 0;
 }
@@ -892,12 +898,14 @@ ibcs2_sys_putmsg(p, v, retval)
 	void *v;
 	register_t *retval;
 {
+#ifdef notyet
 	struct ibcs2_sys_putmsg_args /* {
 		syscallarg(int) fd;
 		syscallarg(struct ibcs2_stropts *) ctl;
 		syscallarg(struct ibcs2_stropts *) dat;
 		syscallarg(int) flags;
 	} */ *uap = v;
+#endif
 
 	return 0;
 }
@@ -956,11 +964,12 @@ ibcs2_sys_stime(p, v, retval)
 
 	SCARG(&sa, tv) = stackgap_alloc(&sg, sizeof(*SCARG(&sa, tv)));
 	SCARG(&sa, tzp) = NULL;
-	if (error = copyin((caddr_t)SCARG(uap, timep),
-			   &(SCARG(&sa, tv)->tv_sec), sizeof(long)))
+	error = copyin((caddr_t)SCARG(uap, timep),
+	    &(SCARG(&sa, tv)->tv_sec), sizeof(long));
+	if (error)
 		return error;
 	SCARG(&sa, tv)->tv_usec = 0;
-	if (error = sys_settimeofday(p, &sa, retval))
+	if ((error = sys_settimeofday(p, &sa, retval)) != 0)
 		return EPERM;
 	return 0;
 }
@@ -985,8 +994,9 @@ ibcs2_sys_utime(p, v, retval)
 	if (SCARG(uap, buf)) {
 		struct ibcs2_utimbuf ubuf;
 
-		if (error = copyin((caddr_t)SCARG(uap, buf), (caddr_t)&ubuf,
-				   sizeof(ubuf)))
+		error = copyin((caddr_t)SCARG(uap, buf), (caddr_t)&ubuf,
+		    sizeof(ubuf));
+		if (error)
 			return error;
 		SCARG(&sa, tptr) = stackgap_alloc(&sg,
 						  2 * sizeof(struct timeval *));
@@ -1010,13 +1020,13 @@ ibcs2_sys_nice(p, v, retval)
 	struct ibcs2_sys_nice_args /* {
 		syscallarg(int) incr;
 	} */ *uap = v;
-	int error, cur_nice = p->p_nice;
+	int error;
 	struct sys_setpriority_args sa;
 
 	SCARG(&sa, which) = PRIO_PROCESS;
 	SCARG(&sa, who) = 0;
 	SCARG(&sa, prio) = p->p_nice + SCARG(uap, incr);
-	if (error = sys_setpriority(p, &sa, retval))
+	if ((error = sys_setpriority(p, &sa, retval)) != 0)
 		return EPERM;
 	*retval = p->p_nice;
 	return 0;
@@ -1091,7 +1101,7 @@ ibcs2_sys_plock(p, v, retval)
 #define IBCS2_DATALOCK	4
 
 	
-        if (error = suser(p->p_ucred, &p->p_acflag))
+        if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
                 return EPERM;
 	switch(SCARG(uap, cmd)) {
 	case IBCS2_UNLOCK:
@@ -1135,7 +1145,7 @@ ibcs2_sys_uadmin(p, v, retval)
 #define SCO_AD_GETCMAJ      1
 
 	/* XXX: is this the right place for this call? */
-	if (error = suser(p->p_ucred, &p->p_acflag))
+	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
 		return (error);
 
 	switch(SCARG(uap, cmd)) {
@@ -1191,11 +1201,13 @@ ibcs2_sys_poll(p, v, retval)
 	void *v;
 	register_t *retval;
 {
+#ifdef notyet
 	struct ibcs2_sys_poll_args /* {
 		syscallarg(struct ibcs2_pollfd *) fds;
 		syscallarg(long) nfds;
 		syscallarg(int) timeout;
 	} */ *uap = v;
+#endif
 
 	return EINVAL;		/* XXX - TODO */
 }
@@ -1216,7 +1228,7 @@ xenix_sys_rdchk(p, v, retval)
 	SCARG(&sa, fd) = SCARG(uap, fd);
 	SCARG(&sa, com) = FIONREAD;
 	SCARG(&sa, data) = stackgap_alloc(&sg, sizeof(int));
-	if (error = sys_ioctl(p, &sa, retval))
+	if ((error = sys_ioctl(p, &sa, retval)) != 0)
 		return error;
 	*retval = (*((int*)SCARG(&sa, data))) ? 1 : 0;
 	return 0;
@@ -1246,9 +1258,11 @@ xenix_sys_nap(p, v, retval)
 	void *v;
 	register_t *retval;
 {
+#ifdef notyet
 	struct xenix_sys_nap_args /* {
 		syscallarg(int) millisec;
 	} */ *uap = v;
+#endif
 
 	return ENOSYS;
 }
diff --git a/sys/compat/ibcs2/ibcs2_signal.c b/sys/compat/ibcs2/ibcs2_signal.c
index 9a024767192f..5ff7ddfc5cdc 100644
--- a/sys/compat/ibcs2/ibcs2_signal.c
+++ b/sys/compat/ibcs2/ibcs2_signal.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ibcs2_signal.c,v 1.7 1995/10/07 06:26:52 mycroft Exp $	*/
+/*	$NetBSD: ibcs2_signal.c,v 1.8 1996/05/03 17:05:27 christos Exp $	*/
 
 /*
  * Copyright (c) 1995 Scott Bartram
@@ -125,6 +125,12 @@ int ibcs2_to_bsd_sig[] = {
 	0,			/* 31 */
 };
 
+void ibcs2_to_bsd_sigset __P((const ibcs2_sigset_t *, sigset_t *));
+void bsd_to_ibcs2_sigset __P((const sigset_t *, ibcs2_sigset_t *));
+void ibcs2_to_bsd_sigaction __P((struct ibcs2_sigaction *,
+    struct sigaction *));
+void bsd_to_ibcs2_sigaction __P((struct sigaction *, struct ibcs2_sigaction *));
+
 void
 ibcs2_to_bsd_sigset(iss, bss)
 	const ibcs2_sigset_t *iss;
diff --git a/sys/compat/ibcs2/ibcs2_signal.h b/sys/compat/ibcs2/ibcs2_signal.h
index 2858688d79d8..44cc6bf8a270 100644
--- a/sys/compat/ibcs2/ibcs2_signal.h
+++ b/sys/compat/ibcs2/ibcs2_signal.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: ibcs2_signal.h,v 1.7 1995/08/14 02:26:01 mycroft Exp $	*/
+/*	$NetBSD: ibcs2_signal.h,v 1.8 1996/05/03 17:05:28 christos Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
@@ -79,10 +79,10 @@
 #define IBCS2_SIGNO(x)		((x) & IBCS2_SIGNO_MASK)
 #define IBCS2_SIGCALL(x)	((x) & ~IBCS2_SIGNO_MASK)
 
-#define IBCS2_SIG_DFL		(void(*)())0
-#define IBCS2_SIG_ERR		(void(*)())-1
-#define IBCS2_SIG_IGN		(void(*)())1
-#define IBCS2_SIG_HOLD		(void(*)())2
+#define IBCS2_SIG_DFL		(void(*) __P((int)))	0
+#define IBCS2_SIG_ERR		(void(*) __P((int)))	-1
+#define IBCS2_SIG_IGN		(void(*) __P((int)))	1
+#define IBCS2_SIG_HOLD		(void(*) __P((int)))	2
 
 #define IBCS2_SIG_SETMASK	0
 #define IBCS2_SIG_BLOCK		1
diff --git a/sys/compat/ibcs2/ibcs2_socksys.c b/sys/compat/ibcs2/ibcs2_socksys.c
index 1fb3b8193b0d..1004e840b45e 100644
--- a/sys/compat/ibcs2/ibcs2_socksys.c
+++ b/sys/compat/ibcs2/ibcs2_socksys.c
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_socksys.c,v 1.4 1996/05/03 17:05:29 christos Exp $	*/
+
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
  * Copyright (c) 1994 Arne H Juul
@@ -24,6 +26,7 @@
  */
 
 #include <sys/param.h>
+#include <sys/systm.h>
 #include <sys/proc.h>
 #include <sys/file.h>
 #include <sys/filedesc.h>
@@ -32,8 +35,12 @@
 #include <sys/tty.h>
 #include <sys/socket.h>
 #include <sys/ioctl.h>
+#include <sys/mount.h>
 #include <net/if.h>
 
+
+#include <sys/syscallargs.h>
+
 #include <compat/ibcs2/ibcs2_socksys.h>
 #include <compat/ibcs2/ibcs2_util.h>
 
@@ -48,13 +55,12 @@ struct ibcs2_socksys_args {
 };
 
 int
-ibcs2_socksys(p, uap, retval)
+ibcs2_socksys(p, v, retval)
 	register struct proc *p;
-	register struct ibcs2_socksys_args *uap;
+	void *v;
 	register_t *retval;
 {
-	register struct filedesc *fdp = p->p_fd;
-	register struct file *fp;
+	register struct ibcs2_socksys_args *uap = v;
 	int error;
 	int realargs[7]; /* 1 for command, 6 for recvfrom */
       
@@ -64,7 +70,8 @@ ibcs2_socksys(p, uap, retval)
 	 * The others are (and should be) only legal on sockets.
 	 */
 
-	if (error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs)))
+	error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs));
+	if (error)
 		return error;
 	DPRINTF(("ibcs2_socksys: %08x %08x %08x %08x %08x %08x %08x\n",
 	       realargs[0], realargs[1], realargs[2], realargs[3], 
diff --git a/sys/compat/ibcs2/ibcs2_socksys.h b/sys/compat/ibcs2/ibcs2_socksys.h
index bc89180b44b4..fc2ccb3cdc21 100644
--- a/sys/compat/ibcs2/ibcs2_socksys.h
+++ b/sys/compat/ibcs2/ibcs2_socksys.h
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_socksys.h,v 1.2 1996/05/03 17:05:30 christos Exp $	*/
+
 /*
  * Copyright (c) 1994, 1995 Scott Bartram
  * Copyright (c) 1994 Arne H Juul
@@ -115,4 +117,6 @@ struct socknewproto {
 	int flags;
 };
 
+int ibcs2_socksys __P((struct proc *, void *, register_t *));
+
 #endif /* _IBCS2_SOCKSYS_H */
diff --git a/sys/compat/ibcs2/ibcs2_stat.c b/sys/compat/ibcs2/ibcs2_stat.c
index 4e4e21437a64..dc54a0967453 100644
--- a/sys/compat/ibcs2/ibcs2_stat.c
+++ b/sys/compat/ibcs2/ibcs2_stat.c
@@ -1,3 +1,4 @@
+/*	$NetBSD: ibcs2_stat.c,v 1.5 1996/05/03 17:05:32 christos Exp $	*/
 /*
  * Copyright (c) 1995 Scott Bartram
  * All rights reserved.
@@ -51,6 +52,8 @@
 #include <compat/ibcs2/ibcs2_util.h>
 #include <compat/ibcs2/ibcs2_utsname.h>
 
+static void bsd_stat2ibcs_stat __P((struct ostat *, struct ibcs2_stat *));
+static int cvt_statfs __P((struct statfs *, caddr_t, int));
 
 static void
 bsd_stat2ibcs_stat(st, st4)
@@ -112,12 +115,12 @@ ibcs2_sys_statfs(p, v, retval)
 
 	IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
-	if (error = namei(&nd))
+	if ((error = namei(&nd)) != 0)
 		return (error);
 	mp = nd.ni_vp->v_mount;
 	sp = &mp->mnt_stat;
 	vrele(nd.ni_vp);
-	if (error = VFS_STATFS(mp, sp, p))
+	if ((error = VFS_STATFS(mp, sp, p)) != 0)
 		return (error);
 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
 	return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
@@ -140,11 +143,11 @@ ibcs2_sys_fstatfs(p, v, retval)
 	register struct statfs *sp;
 	int error;
 
-	if (error = getvnode(p->p_fd, SCARG(uap, fd), &fp))
+	if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
 		return (error);
 	mp = ((struct vnode *)fp->f_data)->v_mount;
 	sp = &mp->mnt_stat;
-	if (error = VFS_STATFS(mp, sp, p))
+	if ((error = VFS_STATFS(mp, sp, p)) != 0)
 		return (error);
 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
 	return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
@@ -169,9 +172,9 @@ ibcs2_sys_stat(p, v, retval)
 	IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
 	SCARG(&cup, path) = SCARG(uap, path);
 	SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
-	if (error = compat_43_sys_stat(p, &cup, retval))
+	if ((error = compat_43_sys_stat(p, &cup, retval)) != 0)
 		return error;
-	if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
+	if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
 		return error;
 	bsd_stat2ibcs_stat(&st, &ibcs2_st);
 	return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
@@ -197,9 +200,9 @@ ibcs2_sys_lstat(p, v, retval)
 	IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
 	SCARG(&cup, path) = SCARG(uap, path);
 	SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
-	if (error = compat_43_sys_lstat(p, &cup, retval))
+	if ((error = compat_43_sys_lstat(p, &cup, retval)) != 0)
 		return error;
-	if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
+	if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
 		return error;
 	bsd_stat2ibcs_stat(&st, &ibcs2_st);
 	return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
@@ -224,9 +227,9 @@ ibcs2_sys_fstat(p, v, retval)
 
 	SCARG(&cup, fd) = SCARG(uap, fd);
 	SCARG(&cup, sb) = stackgap_alloc(&sg, sizeof(st));
-	if (error = compat_43_sys_fstat(p, &cup, retval))
+	if ((error = compat_43_sys_fstat(p, &cup, retval)) != 0)
 		return error;
-	if (error = copyin(SCARG(&cup, sb), &st, sizeof(st)))
+	if ((error = copyin(SCARG(&cup, sb), &st, sizeof(st))) != 0)
 		return error;
 	bsd_stat2ibcs_stat(&st, &ibcs2_st);
 	return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
diff --git a/sys/compat/ibcs2/ibcs2_stropts.h b/sys/compat/ibcs2/ibcs2_stropts.h
index 4d26e7358265..a12df4a28a5d 100644
--- a/sys/compat/ibcs2/ibcs2_stropts.h
+++ b/sys/compat/ibcs2/ibcs2_stropts.h
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_stropts.h,v 1.2 1996/05/03 17:05:33 christos Exp $	*/
+
 /*
  * ibcs2_stropts.h
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/ibcs2/ibcs2_timeb.h b/sys/compat/ibcs2/ibcs2_timeb.h
index d85202d91725..26650e2a9467 100644
--- a/sys/compat/ibcs2/ibcs2_timeb.h
+++ b/sys/compat/ibcs2/ibcs2_timeb.h
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_timeb.h,v 1.2 1996/05/03 17:05:34 christos Exp $	*/
+
 /*
  * Copyright (c) 1995 Scott Bartram
  * All rights reserved.
diff --git a/sys/compat/ibcs2/ibcs2_utime.h b/sys/compat/ibcs2/ibcs2_utime.h
index 02d83150a27a..1dd7fdfed6c1 100644
--- a/sys/compat/ibcs2/ibcs2_utime.h
+++ b/sys/compat/ibcs2/ibcs2_utime.h
@@ -1,3 +1,5 @@
+/*	$NetBSD: ibcs2_utime.h,v 1.2 1996/05/03 17:05:35 christos Exp $	*/
+
 /*
  * Copyright (c) 1995 Scott Bartram
  * All rights reserved.