8c: fixes for Plan 9 build

8c/gc.h:
. Added <u.h> header.
. Added "lD" pragma for "*Adr" to supplement "D".

8c/swt.c:
. Removed unreferenced "thestring" arguments in Bprint() calls.

cc/acid.c:
cc/com.c:
cc/com64.c:
cc/dcl.c:
cc/scon.c:
. Added <u.h>, required by "cc.h".

cc/bits.c:
. Added <u.h>, required by "cc.h".

cc/cc.h:
. Removed <u.h> and <ctype.h>.
. Added "O" pragma to accept "uint" as well as "int".
. Added new "U" pragma (char *).

cc/cc.y:
. Added <u.h> before <stdio.h> (and "cc.h").

cc/dpchk.c:
cc/mac.c:
. Added <u.h> and <ctype.h>.

cc/funct.c:
. Added <u.h>, required by "cc.h".

cc/godefs.c
. Added <u.h>, required by "cc.h".
. Dropped unused "t" argument in Bprint().

cc/lex.c:
. Added <u.h> and <ctype.h>.
. Removed unnecessary incrementation.
. Changed exit() invocations with exits().

cc/omachcap.c:
. Added <u.h>, required by "cc.h".
. USED(n) for unused argument to machcap().

cc/sub.c:
. Added <u.h> and <ctype.h>.

R=rsc
CC=golang-dev
https://golang.org/cl/4629070

src/cmd/8c/gc.h

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
 #include	"../cc/cc.h"
 #include	"../8l/8.out.h"
 
@@ -400,6 +401,7 @@ void	shiftit(Type*, Node*, Node*);
 #pragma	varargck	type	"A"	int
 #pragma	varargck	type	"B"	Bits
 #pragma	varargck	type	"D"	Adr*
+#pragma	varargck	type	"lD"	Adr*
 #pragma	varargck	type	"P"	Prog*
 #pragma	varargck	type	"R"	int
 #pragma	varargck	type	"S"	char*

src/cmd/8c/swt.c

@@ -237,10 +237,10 @@ outcode(void)
 		Bprint(&b, "\n");
 		Bprint(&b, "$$  // exports\n\n");
 		Bprint(&b, "$$  // local types\n\n");
-		Bprint(&b, "$$  // dynimport\n", thestring);
+		Bprint(&b, "$$  // dynimport\n");
 		for(i=0; i<ndynimp; i++)
 			Bprint(&b, "dynimport %s %s %s\n", dynimp[i].local, dynimp[i].remote, dynimp[i].path);
-		Bprint(&b, "\n$$  // dynexport\n", thestring);
+		Bprint(&b, "\n$$  // dynexport\n");
 		for(i=0; i<ndynexp; i++)
 			Bprint(&b, "dynexport %s %s\n", dynexp[i].local, dynexp[i].remote);
 		Bprint(&b, "\n$$\n\n");

src/cmd/cc/acid.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 static char *kwd[] =

src/cmd/cc/bits.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
 #include	"cc.h"
 
 Bits

src/cmd/cc/cc.h

@@ -28,10 +28,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-#include <u.h>
 #include <libc.h>
 #include <bio.h>
-#include <ctype.h>
 
 #pragma	lib	"../cc/cc.a$O"
 
@@ -816,7 +814,9 @@ int	machcap(Node*);
 #pragma	varargck	type	"L"	int32
 #pragma	varargck	type	"Q"	int32
 #pragma	varargck	type	"O"	int
+#pragma	varargck	type	"O"	uint
 #pragma	varargck	type	"T"	Type*
+#pragma	varargck	type	"U"	char*
 #pragma	varargck	type	"|"	int
 
 enum

src/cmd/cc/cc.y

@@ -29,6 +29,7 @@
 // THE SOFTWARE.
 
 %{
+#include <u.h>
 #include <stdio.h>	/* if we don't, bison will, and cc.h re-#defines getc */
 #include "cc.h"
 %}

src/cmd/cc/com.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 int compar(Node*, int);

src/cmd/cc/com64.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 /*

src/cmd/cc/dcl.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 Node*

src/cmd/cc/dpchk.c

@@ -28,6 +28,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
+#include	<ctype.h>
 #include	"cc.h"
 #include	"y.tab.h"
 

src/cmd/cc/funct.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
 #include	"cc.h"
 
 typedef	struct	Ftab	Ftab;

src/cmd/cc/godefs.c

@@ -29,6 +29,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 static int upper;
@@ -238,7 +239,7 @@ printtypename(Type *t)
 			Bprint(&outbuf, "%U", n);
 		break;
 	case TFUNC:
-		Bprint(&outbuf, "func(", t);
+		Bprint(&outbuf, "func(");
 		for(t1 = t->down; t1 != T; t1 = t1->down) {
 			if(t1->etype == TVOID)
 				break;

src/cmd/cc/lex.c

@@ -28,6 +28,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
+#include	<ctype.h>
 #include	"cc.h"
 #include	"y.tab.h"
 
@@ -384,7 +386,7 @@ lookup(void)
 		}else
 			*w++ = *r;
 	}
-	*w++ = '\0';
+	*w = '\0';
 
 	h = 0;
 	for(p=symb; *p;) {
@@ -1524,7 +1526,7 @@ alloc(int32 n)
 	p = malloc(n);
 	if(p == nil) {
 		print("alloc out of mem\n");
-		exit(1);
+		exits("alloc: out of mem");
 	}
 	memset(p, 0, n);
 	return p;
@@ -1538,7 +1540,7 @@ allocn(void *p, int32 n, int32 d)
 	p = realloc(p, n+d);
 	if(p == nil) {
 		print("allocn out of mem\n");
-		exit(1);
+		exits("allocn: out of mem");
 	}
 	if(d > 0)
 		memset((char*)p+n, 0, d);

src/cmd/cc/mac.c

@@ -28,6 +28,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
+#include	<ctype.h>
 #include	"cc.h"
 
 #include	"macbody"

src/cmd/cc/omachcap.c

@@ -28,11 +28,13 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
 #include	"cc.h"
 
 /* default, like old cc */
 int
 machcap(Node *n)
 {
+	USED(n);
 	return 0;
 }

src/cmd/cc/scon.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <u.h>
 #include "cc.h"
 
 static Node*

src/cmd/cc/sub.c

@@ -28,6 +28,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include	<u.h>
 #include	"cc.h"
 
 Node*