Add the #goo to allow use in C++.
Silence a few more warnings.
Strip down the mkfiles more.
Fix bug in X11 mouse handling, note groups.
diff --git a/include/bin.h b/include/bin.h
index 6b9f2bd..dc738f1 100644
--- a/include/bin.h
+++ b/include/bin.h
@@ -1,3 +1,9 @@
+#ifndef _BIN_H_
+#define _BIN_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 /*
 #pragma	lib	"libbin.a"
 #pragma	src	"/sys/src/libbin"
@@ -11,3 +17,8 @@
 void	*binalloc(Bin **, ulong size, int zero);
 void	*bingrow(Bin **, void *op, ulong osize, ulong size, int zero);
 void	binfree(Bin **);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/bio.h b/include/bio.h
index 600f094..473389a 100644
--- a/include/bio.h
+++ b/include/bio.h
@@ -1,5 +1,8 @@
-#ifndef _BIOH_
-#define _BIOH_ 1
+#ifndef _BIO_H_
+#define _BIO_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 
 #include <sys/types.h>	/* for off_t */
 #include <fcntl.h>	/* for O_RDONLY, O_WRONLY */
@@ -78,4 +81,7 @@
 long	Bgetrune(Biobuf*);
 int	Bputrune(Biobuf*, long);
 
+#if defined(__cplusplus)
+}
+#endif
 #endif
diff --git a/include/cursor.h b/include/cursor.h
index 105cd0e..d53baf8 100644
--- a/include/cursor.h
+++ b/include/cursor.h
@@ -1,3 +1,9 @@
+#ifndef _CURSOR_H_
+#define _CURSOR_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 typedef struct Cursor Cursor;
 struct	Cursor
 {
@@ -5,3 +11,8 @@
 	uchar	clr[2*16];
 	uchar	set[2*16];
 };
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/draw.h b/include/draw.h
index 029f0ae..54a566a 100644
--- a/include/draw.h
+++ b/include/draw.h
@@ -1,3 +1,9 @@
+#ifndef _DRAW_H_
+#define _DRAW_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 typedef struct	Cachefont Cachefont;
 typedef struct	Cacheinfo Cacheinfo;
 typedef struct	Cachesubf Cachesubf;
@@ -531,3 +537,8 @@
 int	_drawmsgread(Display*, void*, int);
 int	_drawmsgwrite(Display*, void*, int);
 int	_latin1(Rune*, int);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/event.h b/include/event.h
index e74183d..56c1b1c 100644
--- a/include/event.h
+++ b/include/event.h
@@ -1,3 +1,9 @@
+#ifndef _EVENT_H_
+#define _EVENT_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 typedef struct	Event Event;
 typedef struct	Menu Menu;
 
@@ -61,3 +67,8 @@
 extern void		edrawgetrect(Rectangle, int);
 extern int		ereadmouse(Mouse*);
 extern int		eatomouse(Mouse*, char*, int);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/fcall.h b/include/fcall.h
index 93f46d4..20ffe38 100644
--- a/include/fcall.h
+++ b/include/fcall.h
@@ -1,3 +1,8 @@
+#ifndef _FCALL_H_
+#define _FCALL_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	src	"/sys/src/libc/9sys"
 #pragma	lib	"libc.a"
@@ -118,3 +123,7 @@
 #pragma	varargck	type	"M"	ulong
 #pragma	varargck	type	"D"	Dir*
 */
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/flate.h b/include/flate.h
index 79c888c..bbd0b3d 100644
--- a/include/flate.h
+++ b/include/flate.h
@@ -1,3 +1,8 @@
+#ifndef _FLATE_H_
+#define _FLATE_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	lib	"libflate.a"
 #pragma	src	"/sys/src/libflate"
@@ -39,3 +44,7 @@
 ulong	blockcrc(ulong *tab, ulong crc, void *buf, int n);
 
 ulong	adler32(ulong adler, void *buf, int n);
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/fmt.h b/include/fmt.h
index c913e14..befea2e 100644
--- a/include/fmt.h
+++ b/include/fmt.h
@@ -1,3 +1,8 @@
+#ifndef _FMT_H_
+#define _FMT_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 
 /*
  * The authors of this software are Rob Pike and Ken Thompson.
@@ -13,14 +18,8 @@
  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
  */
 
-#ifndef _FMTH_
-#define _FMTH_ 1
-
 #include <stdarg.h>
-
-#ifndef _UTFH_
 #include <utf.h>
-#endif
 
 typedef struct Fmt	Fmt;
 struct Fmt{
@@ -97,4 +96,7 @@
 extern	double	fmtstrtod(const char *, char **);
 extern	double	fmtcharstod(int(*)(void*), void*);
 
+#if defined(__cplusplus)
+}
+#endif
 #endif
diff --git a/include/frame.h b/include/frame.h
index 9b8194b..47d808c 100644
--- a/include/frame.h
+++ b/include/frame.h
@@ -1,3 +1,9 @@
+#ifndef _FRAME_H_
+#define _FRAME_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 typedef struct Frbox Frbox;
 typedef struct Frame Frame;
 
@@ -83,3 +89,7 @@
 
 #define	NRUNE(b)	((b)->nrune<0? 1 : (b)->nrune)
 #define	NBYTE(b)	strlen((char*)(b)->ptr)
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/httpd.h b/include/httpd.h
index d75c580..03b48ad 100644
--- a/include/httpd.h
+++ b/include/httpd.h
@@ -1,3 +1,8 @@
+#ifndef _HTTPD_H_
+#define _HTTPD_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	lib	"libhttpd.a"
 #pragma	src	"/sys/src/libhttpd"
@@ -278,3 +283,8 @@
 #pragma	varargck	type	"U"	char*
 #pragma	varargck	type	"H"	char*
 */
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/ip.h b/include/ip.h
index af82c99..6fbf394 100644
--- a/include/ip.h
+++ b/include/ip.h
@@ -1,3 +1,8 @@
+#ifndef _IP_H_
+#define _IP_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	src	"/sys/src/libip"
 #pragma	lib	"libip.a"
@@ -121,3 +126,7 @@
 
 #define CLASS(p) ((*(uchar*)(p))>>6)
 
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/keyboard.h b/include/keyboard.h
index a6d99bf..588600a 100644
--- a/include/keyboard.h
+++ b/include/keyboard.h
@@ -1,3 +1,8 @@
+#ifndef _KEYBOARD_H_
+#define _KEYBOARD_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 typedef struct 	Keyboardctl Keyboardctl;
 
 struct	Keyboardctl
@@ -34,3 +39,8 @@
 	Kshift=	KF|0x16,
 	Kctl=		KF|0x17,
 };
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/lib9.h b/include/lib9.h
index 8f15ce6..21490e6 100644
--- a/include/lib9.h
+++ b/include/lib9.h
@@ -3,9 +3,8 @@
  * fit into libutf or into libfmt, but is still missing from traditional
  * Unix C libraries.
  */
-#ifndef _LIB9H_
-#define _LIB9H_ 1
-
+#ifndef _LIB9_H_
+#define _LIB9_H_ 1
 #if defined(__cplusplus)
 extern "C" {
 #endif                                                                          
@@ -861,5 +860,4 @@
 #if defined(__cplusplus)
 }
 #endif
-
-#endif	/* _LIB9H_ */
+#endif	/* _LIB9_H_ */
diff --git a/include/libsec.h b/include/libsec.h
index 17b2b65..e65b7f9 100644
--- a/include/libsec.h
+++ b/include/libsec.h
@@ -1,3 +1,8 @@
+#ifndef _LIBSEC_H_
+#define _LIBSEC_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	lib	"libsec.a"
 #pragma	src	"/sys/src/libsec"
@@ -338,3 +343,8 @@
 
 // readcert.c
 extern uchar *readcert(char *filename, int *pcertlen);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/memdraw.h b/include/memdraw.h
index 2d4f54f..93f34a0 100644
--- a/include/memdraw.h
+++ b/include/memdraw.h
@@ -1,3 +1,8 @@
+#ifndef _MEMDRAW_H_
+#define _MEMDRAW_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 typedef struct	Memimage Memimage;
 typedef struct	Memdata Memdata;
 typedef struct	Memsubfont Memsubfont;
@@ -208,3 +213,8 @@
 				Point, int);
 extern void		_memimagedraw(Memdrawparam*);
 extern void		_drawreplacescreenimage(Memimage*);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/memlayer.h b/include/memlayer.h
index 36d8776..f0b01d0 100644
--- a/include/memlayer.h
+++ b/include/memlayer.h
@@ -1,3 +1,9 @@
+#ifndef _MEMLAYER_H_
+#define _MEMLAYER_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
+
 typedef struct Memscreen Memscreen;
 typedef void (*Refreshfn)(Memimage*, Rectangle, void*);
 
@@ -46,3 +52,9 @@
 void			_memlsetclear(Memscreen*);
 int			memlorigin(Memimage*, Point, Point);
 void			memlnorefresh(Memimage*, Rectangle, void*);
+
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/mouse.h b/include/mouse.h
index f0a0f69..2c190b2 100644
--- a/include/mouse.h
+++ b/include/mouse.h
@@ -1,3 +1,8 @@
+#ifndef _MOUSE_H_
+#define _MOUSE_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 typedef struct	Menu Menu;
 typedef struct 	Mousectl Mousectl;
 
@@ -42,3 +47,9 @@
 extern void		drawgetrect(Rectangle, int);
 extern Rectangle	getrect(int, Mousectl*);
 extern int	 		menuhit(int, Mousectl*, Menu*, Screen*);
+
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/plumb.h b/include/plumb.h
index e0b1132..4a31546 100644
--- a/include/plumb.h
+++ b/include/plumb.h
@@ -1,3 +1,8 @@
+#ifndef _LIBPLUMB_H_
+#define _LIBPLUMB_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /*
 #pragma	lib	"libplumb.a"
 #pragma	src	"/sys/src/libplumb"
@@ -48,3 +53,8 @@
 char*		plumblookup(Plumbattr*, char*);
 int			plumbopen(char*, int);
 int			eplumb(int, char*);
+
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/include/regexp9.h b/include/regexp9.h
index 745a6d7..382d246 100644
--- a/include/regexp9.h
+++ b/include/regexp9.h
@@ -1,6 +1,9 @@
-#ifndef _REGEXP9H_
+#ifndef _REGEXP9_H_
+#define _REGEXP9_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 
-#define _REGEXP9H_ 1
 #include <utf.h>
 
 typedef struct Resub		Resub;
@@ -83,4 +86,7 @@
 #define rregsub rregsub9
 #endif
 
+#if defined(__cplusplus)
+}
+#endif
 #endif
diff --git a/include/thread.h b/include/thread.h
index 10aac28..9c5d2d0 100644
--- a/include/thread.h
+++ b/include/thread.h
@@ -1,5 +1,8 @@
-#ifndef _THREADH_
-#define _THREADH_ 1
+#ifndef _THREAD_H_
+#define _THREAD_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 
 /* avoid conflicts with socket library */
 #undef send
@@ -129,4 +132,7 @@
 long		iocall(Ioproc*, long (*)(va_list*), ...);
 void		ioret(Ioproc*, int);
 
+#if defined(__cplusplus)
+}
+#endif
 #endif	/* _THREADH_ */
diff --git a/include/utf.h b/include/utf.h
index 623bfda..11b016d 100644
--- a/include/utf.h
+++ b/include/utf.h
@@ -1,5 +1,8 @@
-#ifndef _UTFH_
-#define _UTFH_ 1
+#ifndef _UTF_H_
+#define _UTF_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 
 typedef unsigned short Rune;	/* 16 bits */
 
@@ -48,4 +51,7 @@
 extern	int	istitlerune(Rune);
 extern	int	isupperrune(Rune);
 
+#if defined(__cplusplus)
+}
+#endif
 #endif
diff --git a/include/venti.h b/include/venti.h
index 5f8ef0a..a828101 100644
--- a/include/venti.h
+++ b/include/venti.h
@@ -1,3 +1,8 @@
+#ifndef _VENTI_H_
+#define _VENTI_H_ 1
+#if defined(__cplusplus)
+extern "C" { 
+#endif
 /* XXX should be own library? */
 /*
  * Packets
@@ -413,3 +418,7 @@
 int vtfilelock2(VtFile*, VtFile*, int);
 int vtfileflushbefore(VtFile*, u64int);
 
+#if defined(__cplusplus)
+}
+#endif
+#endif
diff --git a/src/cmd/idiff.c b/src/cmd/idiff.c
index c3f207f..1dc49cf 100644
--- a/src/cmd/idiff.c
+++ b/src/cmd/idiff.c
@@ -82,11 +82,14 @@
 opentemp(char *template, int mode, long perm)
 {
 	int fd;
+	Dir d;
 
 	fd = mkstemp(template);
 	if(fd < 0)
 		sysfatal("could not create temporary file");
-	fchmod(fd, perm);
+	nulldir(&d);
+	d.mode = perm;
+	dirfwstat(fd, &d);
 
 	return fd;
 }
diff --git a/src/cmd/mkfile b/src/cmd/mkfile
index b34a61b..0f0ab11 100644
--- a/src/cmd/mkfile
+++ b/src/cmd/mkfile
@@ -6,7 +6,7 @@
 
 <$PLAN9/src/mkmany
 
-BUGGERED='CVS|oplumb|plumb|plumb2|mk|vac|9term'
+BUGGERED='CVS|oplumb|plumb|plumb2|mk|vac|9term|venti'
 DIRS=`ls -l |sed -n 's/^d.* //p' |egrep -v "$BUGGERED"`
 
 <$PLAN9/src/mkdirs
diff --git a/src/cmd/sam/sam.c b/src/cmd/sam/sam.c
index 4f774a9..078d943 100644
--- a/src/cmd/sam/sam.c
+++ b/src/cmd/sam/sam.c
@@ -141,6 +141,7 @@
 	File *f;
 	char *c;
 	char buf[256];
+	char *root;
 
 	if(rescuing++)
 		return;
@@ -162,7 +163,10 @@
 			free(c);
 		}else
 			sprint(buf, "nameless.%d", nblank++);
-		fprint(io, "#!%s '%s' $* <<'---%s'\n", SAMSAVECMD, buf, buf);
+		root = getenv("PLAN9");
+		if(root == nil)
+			root = "/usr/local/plan9";
+		fprint(io, "#!/bin/sh\n%s/bin/samsave '%s' $* <<'---%s'\n", root, buf, buf);
 		addr.r.p1 = 0, addr.r.p2 = f->b.nc;
 		writeio(f);
 		fprint(io, "\n---%s\n", (char *)buf);
diff --git a/src/cmd/sam/sam.h b/src/cmd/sam/sam.h
index 7e824da..1e92c73 100644
--- a/src/cmd/sam/sam.h
+++ b/src/cmd/sam/sam.h
@@ -345,7 +345,6 @@
 extern char	SHPATH[];
 extern char	RX[];
 extern char	RXPATH[];
-extern char	SAMSAVECMD[];
 
 /*
  * acme globals
diff --git a/src/cmd/sam/unix.c b/src/cmd/sam/unix.c
index 024d308..45cfc3b 100644
--- a/src/cmd/sam/unix.c
+++ b/src/cmd/sam/unix.c
@@ -38,9 +38,6 @@
 #ifndef RXPATHNAME
 #define RXPATHNAME "ssh"
 #endif
-#ifndef SAMSAVECMDNAME
-#define SAMSAVECMDNAME "/bin/sh\n/usr/local/plan9/bin/samsave"
-#endif
 
 char	RSAM[] = "sam";
 char	SAMTERM[] = SAMTERMNAME;
@@ -50,7 +47,6 @@
 char	SHPATH[] = SHPATHNAME;
 char	RX[] = RXNAME;
 char	RXPATH[] = RXPATHNAME;
-char	SAMSAVECMD[] = SAMSAVECMDNAME;
 
 
 void
diff --git a/src/cmd/unutf.c b/src/cmd/unutf.c
index c161731..0be7aa8 100644
--- a/src/cmd/unutf.c
+++ b/src/cmd/unutf.c
@@ -1,3 +1,7 @@
+/*
+ * stupid little program to pipe unicode chars through 
+ * when converting to non-utf compilers.
+ */
 #include <u.h>
 #include <libc.h>
 #include <bio.h>
diff --git a/src/lib9/dirfwstat.c b/src/lib9/dirfwstat.c
index 9f0d485..c7cf64d 100644
--- a/src/lib9/dirfwstat.c
+++ b/src/lib9/dirfwstat.c
@@ -22,16 +22,21 @@
 int
 dirfwstat(int fd, Dir *dir)
 {
+	int ret;
 	struct timeval tv[2];
 
-	/* BUG handle more */
-	if(dir->mtime == ~0ULL)
-		return 0;
-
-	tv[0].tv_sec = dir->mtime;
-	tv[0].tv_usec = 0;
-	tv[1].tv_sec = dir->mtime;
-	tv[1].tv_usec = 0;
-	return futimes(fd, tv);
+	if(~dir->mode != 0){
+		if(fchmod(fd, dir->mode) < 0)
+			ret = -1;
+	}
+	if(~dir->mtime != 0){
+		tv[0].tv_sec = dir->mtime;
+		tv[0].tv_usec = 0;
+		tv[1].tv_sec = dir->mtime;
+		tv[1].tv_usec = 0;
+		if(futimes(fd, tv) < 0)
+			ret = -1;
+	}
+	return ret;
 }
 
diff --git a/src/lib9/dirread.c b/src/lib9/dirread.c
index 2e1ce88..ab9ec7f 100644
--- a/src/lib9/dirread.c
+++ b/src/lib9/dirread.c
@@ -1,31 +1,22 @@
 #include <u.h>
+#define NOPLAN9DEFINES
 #include <libc.h>
-
-#undef asctime
-#undef ctime
-#undef gmtime
-#undef localtime
-
 #include <sys/stat.h>
 #include <dirent.h>
 
 extern int _p9dir(struct stat*, char*, Dir*, char**, char*);
 
-/* everyone has getdirentries, just use that */
+/* almost everyone has getdirentries, just use that */
 static int
 mygetdents(int fd, char *buf, int n)
 {
 	ssize_t nn;
-#if _GETDIRENTRIES_TAKES_LONG
 	long off;
-#else
-	off_t off;
-#endif
 
-	off = seek(fd, 0, 1);
+	off = p9seek(fd, 0, 1);
 	nn = getdirentries(fd, buf, n, &off);
 	if(nn > 0)
-		seek(fd, off, 0);
+		p9seek(fd, off, 0);
 	return nn;
 }
 
diff --git a/src/libdraw/BOT b/src/libdraw/BOT
deleted file mode 100644
index e69de29..0000000
--- a/src/libdraw/BOT
+++ /dev/null
diff --git a/src/libdraw/x11-init.c b/src/libdraw/x11-init.c
index e402dee..73df170 100644
--- a/src/libdraw/x11-init.c
+++ b/src/libdraw/x11-init.c
@@ -26,6 +26,15 @@
 	Display *d;
 	Memimage *m;
 
+	/*
+	 * This rfork(RFNOTEG) isn't exactly right,
+	 * but we need some way to signal window 
+	 * closes.  Right now we post a hangup
+	 * note to the note group, which kills a whole
+	 * lot more than just the current program
+	 * if we don't do this.
+	 */
+	rfork(RFNOTEG);
 	memimageinit();
 
 	d = mallocz(sizeof(Display), 1);
diff --git a/src/libdraw/x11-itrans.c b/src/libdraw/x11-itrans.c
index b4d9e68..337bf5b 100644
--- a/src/libdraw/x11-itrans.c
+++ b/src/libdraw/x11-itrans.c
@@ -190,8 +190,15 @@
 	switch(e->type){
 	case ButtonPress:
 		be = (XButtonEvent*)e;
-		/* Fake message, just sent to make us announce snarf. */
-		if(be->send_event && be->state==~0 && be->button==~0)
+		/* 
+		 * Fake message, just sent to make us announce snarf.
+		 * Apparently state and button are 16 and 8 bits on
+		 * the wire, since they are truncated by the time they
+		 * get to us.
+		 */
+		if(be->send_event
+		&& (~be->state&0xFFFF)==0
+		&& (~be->button&0xFF)==0)
 			return -1;
 		/* BUG? on mac need to inherit these from elsewhere? */
 		m->xy.x = be->x;
diff --git a/src/libhttpd/parsereq.c b/src/libhttpd/parsereq.c
index 19f0317..7ef6341 100644
--- a/src/libhttpd/parsereq.c
+++ b/src/libhttpd/parsereq.c
@@ -15,7 +15,6 @@
 static	int		getc(HConnect*);
 static	char*		getword(HConnect*);
 static	Strings		parseuri(HConnect *c, char*);
-static	Strings		stripmagic(char*);
 static	Strings		stripsearch(char*);
 
 /*
diff --git a/src/libthread/sched.c b/src/libthread/sched.c
index d33587f..b9e646e 100644
--- a/src/libthread/sched.c
+++ b/src/libthread/sched.c
@@ -3,12 +3,14 @@
 
 //static Thread	*runthread(Proc*);
 
+#if 0
 static char *_psstate[] = {
 	"Dead",
 	"Running",
 	"Ready",
 	"Rendezvous",
 };
+#endif
 
 static char*
 psstate(int s)
diff --git a/src/mkcommon b/src/mkcommon
index 506cd43..90131bc 100644
--- a/src/mkcommon
+++ b/src/mkcommon
@@ -6,16 +6,20 @@
 %.$O:	%.s
 	$AS $AFLAGS $stem.s
 
-clean:V:
+y.tab.h y.tab.c:	$YFILES
+	$YACC $YFLAGS $prereq
+
+nuke:V: nuke-common
+clean:V: clean-common
+%.clean:V: %.clean-common
+
+nuke-common:V:
+	rm -f *.[$OS] [$OS].out $CLEANFILES $NUKEFILES
+
+clean-common:
 	rm -f *.[$OS] [$OS].out $CLEANFILES
 
-%.clean:V:
+%.clean-common:V:
 	rm -f $stem.[$OS] [$OS].$stem $stem.acid $stem
 
-nuke:V:
-	rm -f *.[$OS] [$OS].out $CLEANFILES
 
-Makefile:D: mkfile
-	rm -f Makefile
-	sh $PLAN9/src/mk2make mkfile >Makefile
-	chmod 444 Makefile
diff --git a/src/mkhdr b/src/mkhdr
index cbb0569..8172845 100644
--- a/src/mkhdr
+++ b/src/mkhdr
@@ -1,26 +1,25 @@
 SYSNAME=`uname`
 OBJTYPE=`uname -m | sed 's;i.86;386;; s;/.*;;; s; ;;g'`
 
+BIN=$PLAN9/bin
+LIBDIR=$PLAN9/lib
+
+# BUG - figure this out automatically
 X11=/usr/X11R6
+
+O=o
+OS=$O
+
 CC=9c
 LD=9l
 AS=9a
 AR=9ar
+INSTALL=install -c
 CFLAGS=
 LDFLAGS=
 AFLAGS=
-O=o
-
-BIN=$PLAN9/bin
-LIBDIR=$PLAN9/lib
+CLEANFILES=
+NUKEFILES=
 
 <|cat $PLAN9/src/mk.$SYSNAME-$OBJTYPE 2>/dev/null || true
 
-OS=$O
-LD=9l
-LDFLAGS=$LDFLAGS -L$LIBDIR
-
-CLEANFILES=*.$O
-NUKEFILES=
-
-INSTALL=install -c
diff --git a/src/mkmany b/src/mkmany
index 5b254db..b648e88 100644
--- a/src/mkmany
+++ b/src/mkmany
@@ -1,73 +1,26 @@
-PROGS=${TARG:%=$O.%}
-
 none:VQ:
 	echo usage: mk all, install, installall, '$O'.cmd, cmd.install, or cmd.installall
 
+PROGS=${TARG:%=$O.%}
+
 all:V:	$PROGS
 
 $O.%:	%.$O $OFILES $LIB
 	$LD -o $target $prereq $LDFLAGS
 
-%.$O:	$HFILES		# don't combine with following %.$O rules
-
-%.$O:	%.c
-	$CC $CFLAGS $stem.c
-
-%.$O:	%.s
-	$AS $AFLAGS $stem.s
-
-y.tab.h y.tab.c:	$YFILES
-	$YACC $YFLAGS $prereq
-
 %.install:V:	$BIN/%
 
 $BIN/%:	$O.%
 	$INSTALL $O.$stem $BIN/$stem
 
-%.installall:V:
-	for (objtype in $CPUS)
-		mk $stem.install
-
 install:V:
-	# for (i in $TARG)
-	# 	mk $MKFLAGS $i.install
 	for i in $TARG
 	do
 		mk $MKFLAGS $i.install
 	done
 
-installall:V:
-	for(objtype in $CPUS)
-		mk $MKFLAGS install
+CLEANFILES=$CLEANFILES $PROGS
+NUKEFILES=$NUKEFILES ${TARG:%=$BIN/%}
 
-%.safeinstall:V:
-	mk $O.$stem
-	test -e $BIN/$stem && mv $BIN/$stem $BIN/_$stem
-	mk $stem.install
+<$PLAN9/src/mkcommon
 
-%.safeinstallall:V:
-	for(objtype in $CPUS)
-		mk $MKFLAGS $stem.safeinstall
-
-safeinstall:V:
-	for(i in $TARG)
-		mk $MKFLAGS $i.safeinstall
-
-safeinstallall:V:
-	for (objtype in $CPUS)
-		mk safeinstall
-
-update:V:
-	update $UPDATEFLAGS $UPDATE
-
-nuke:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* *.acid $TARG $NUKEFILES
-
-clean:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* $TARG $CLEANFILES
-
-%.clean:V:
-	rm -f $stem.[$OS] [$OS].$stem $stem.acid $stem
-
-%.acid: %.$O $HFILES
-	$CC $CFLAGS -a $stem.c >$target
diff --git a/src/mkmk.sh b/src/mkmk.sh
index a52fb4a..196a10d 100644
--- a/src/mkmk.sh
+++ b/src/mkmk.sh
@@ -19,7 +19,7 @@
 9c  utfrrune.c
 9c  utfrune.c
 9c  utfutf.c
-ar rvc ../../lib/libutf.a rune.o runestrcat.o runestrchr.o runestrcmp.o runestrcpy.o runestrdup.o runestrlen.o runestrecpy.o runestrncat.o runestrncmp.o runestrncpy.o runestrrchr.o runestrstr.o runetype.o utfecpy.o utflen.o utfnlen.o utfrrune.o utfrune.o utfutf.o
+9ar rvc ../../lib/libutf.a rune.o runestrcat.o runestrchr.o runestrcmp.o runestrcpy.o runestrdup.o runestrlen.o runestrecpy.o runestrncat.o runestrncmp.o runestrncpy.o runestrrchr.o runestrstr.o runetype.o utfecpy.o utflen.o utfnlen.o utfrrune.o utfrune.o utfutf.o
 cd ..
 cd libfmt
 9c  dofmt.c
@@ -56,7 +56,7 @@
 9c  vsnprint.c
 9c  charstod.c
 9c  pow10.c
-ar rvc ../../lib/libfmt.a dofmt.o errfmt.o fltfmt.o fmt.o fmtfd.o fmtfdflush.o fmtlock.o fmtprint.o fmtquote.o fmtrune.o fmtstr.o fmtvprint.o fprint.o nan64.o print.o runefmtstr.o runeseprint.o runesmprint.o runesnprint.o runesprint.o runevseprint.o runevsmprint.o runevsnprint.o seprint.o smprint.o snprint.o sprint.o strtod.o vfprint.o vseprint.o vsmprint.o vsnprint.o charstod.o pow10.o
+9ar rvc ../../lib/libfmt.a dofmt.o errfmt.o fltfmt.o fmt.o fmtfd.o fmtfdflush.o fmtlock.o fmtprint.o fmtquote.o fmtrune.o fmtstr.o fmtvprint.o fprint.o nan64.o print.o runefmtstr.o runeseprint.o runesmprint.o runesnprint.o runesprint.o runevseprint.o runevsmprint.o runevsnprint.o seprint.o smprint.o snprint.o sprint.o strtod.o vfprint.o vseprint.o vsmprint.o vsnprint.o charstod.o pow10.o
 cd ..
 cd libbio
 9c  bbuffered.c
@@ -75,7 +75,7 @@
 9c  bwrite.c
 9c  bgetrune.c
 9c  bputrune.c
-ar rvc ../../lib/libbio.a bbuffered.o bfildes.o bflush.o bgetc.o bgetd.o binit.o boffset.o bprint.o bputc.o brdline.o brdstr.o bread.o bseek.o bwrite.o bgetrune.o bputrune.o
+9ar rvc ../../lib/libbio.a bbuffered.o bfildes.o bflush.o bgetc.o bgetd.o binit.o boffset.o bprint.o bputc.o brdline.o brdstr.o bread.o bseek.o bwrite.o bgetrune.o bputrune.o
 cd ..
 cd libregexp
 9c  regcomp.c
@@ -86,7 +86,7 @@
 9c  rregaux.c
 9c  rregexec.c
 9c  rregsub.c
-ar rvc ../../lib/libregexp9.a regcomp.o regerror.o regexec.o regsub.o regaux.o rregaux.o rregexec.o rregsub.o
+9ar rvc ../../lib/libregexp9.a regcomp.o regerror.o regexec.o regsub.o regaux.o rregaux.o rregexec.o rregsub.o
 cd ..
 cd cmd/mk
 9c  arc.c
@@ -111,6 +111,6 @@
 9c  varsub.c
 9c  word.c
 9c  unix.c
-9l -o o.mk arc.o archive.o bufblock.o env.o file.o graph.o job.o lex.o main.o match.o mk.o parse.o recipe.o rule.o run.o sh.o shprint.o symtab.o var.o varsub.o word.o unix.o -L../../../lib -lregexp9 -lbio -lfmt -lutf
+9l -o o.mk arc.o archive.o bufblock.o env.o file.o graph.o job.o lex.o main.o match.o mk.o parse.o recipe.o rule.o run.o sh.o shprint.o symtab.o var.o varsub.o word.o unix.o -lregexp9 -lbio -lfmt -lutf
 install -c o.mk ../../../bin/mk
 cd ..
diff --git a/src/mkone b/src/mkone
index 316bca9..8885b1e 100644
--- a/src/mkone
+++ b/src/mkone
@@ -2,43 +2,16 @@
 
 all:V:	$PROG
 
-$O.$TARG:	$OFILES $LIB
+$PROG:	$OFILES $LIB
 	$LD -o $target $prereq $LDFLAGS
 
-%.$O:	$HFILES		# don't combine with following %.$O rules
-
-%.$O:	%.c
-	$CC $CFLAGS $stem.c
-
-%.$O:	%.s
-	$AS $AFLAGS $stem.s
-
-y.tab.h y.tab.c:	$YFILES
-	$YACC $YFLAGS $prereq
-
+install:V: $TARG.install
 %.install:V:	$BIN/%
 
 $BIN/%:	$O.%
 	$INSTALL $O.$stem $BIN/$stem
 
-%.installall:V:
-	for (objtype in $CPUS)
-		mk $stem.install
+NUKEFILES=$NUKEFILES $BIN/$TARG
 
-install:V: $TARG.install
+<$PLAN9/src/mkcommon
 
-installall:V:
-	for(objtype in $CPUS)
-		mk $MKFLAGS install
-
-nuke:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* *.acid $TARG $NUKEFILES
-
-clean:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* $TARG $CLEANFILES
-
-%.clean:V:
-	rm -f $stem.[$OS] [$OS].$stem $stem.acid $stem
-
-%.acid: %.$O $HFILES
-	$CC $CFLAGS -a $stem.c >$target
diff --git a/src/mksyslib b/src/mksyslib
index fab443d..fe412ab 100644
--- a/src/mksyslib
+++ b/src/mksyslib
@@ -8,4 +8,6 @@
 
 all install:V: $PLAN9/lib/$LIB
 
+NUKEFILES=$NUKEFILES $PLAN9/lib/$LIB
+
 <$PLAN9/src/mkcommon