#include some missing headers to avoid implicit function declarations,

ok jasper@

math/sc/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.13 2011/06/25 15:36:08 jasper Exp $
+# $OpenBSD: Makefile,v 1.14 2011/06/26 09:48:50 sthen Exp $
 
 COMMENT=	curses spreadsheet-calculator program
 
 DISTNAME=	sc-7.16
-REVISION=	1
+REVISION=	2
 CATEGORIES=	math
 
 MASTER_SITES=	${MASTER_SITE_SUNSITE:=apps/financial/spreadsheet/}
@@ -15,9 +15,10 @@ PERMIT_PACKAGE_CDROM=	Yes
 PERMIT_PACKAGE_FTP=	Yes
 PERMIT_DISTFILES_CDROM=	Yes
 PERMIT_DISTFILES_FTP=	Yes
-WANTLIB=		c curses m termcap
 
-USE_GROFF =	Yes
+WANTLIB += c curses m termcap
+
+USE_GROFF=	Yes
 NO_REGRESS=	Yes
 
 .include <bsd.port.mk>

math/sc/patches/patch-help_c

@@ -0,0 +1,10 @@
+$OpenBSD: patch-help_c,v 1.1 2011/06/26 09:48:50 sthen Exp $
+--- help.c.orig	Sat Jun 25 23:54:17 2011
++++ help.c	Sat Jun 25 23:54:36 2011
+@@ -6,5 +6,6 @@
+  */
+ 
++#include <stdlib.h>
+ #ifdef QREF
+ #include <stdio.h>
+ char	*header = " Quick Reference";

math/sc/patches/patch-lex_c

@@ -1,7 +1,16 @@
-$OpenBSD: patch-lex_c,v 1.5 2011/06/25 15:33:33 jasper Exp $
---- lex.c.orig	Wed Aug 21 00:44:26 2002
-+++ lex.c	Sat Jun 25 17:31:00 2011
-@@ -107,7 +107,7 @@ int
+$OpenBSD: patch-lex_c,v 1.6 2011/06/26 09:48:50 sthen Exp $
+--- lex.c.orig	Sat Jun 25 23:40:11 2011
++++ lex.c	Sat Jun 25 23:39:40 2011
+@@ -34,6 +34,8 @@
+ #include <signal.h>
+ #include <setjmp.h>
+ #include <ctype.h>
++#include <unistd.h>
++#include <math.h>
+ #include "sc.h"
+ 
+ #ifdef NONOTIMEOUT
+@@ -107,7 +109,7 @@ int
  yylex()
  {
      char *p = line + linelim;
@@ -10,7 +19,7 @@ $OpenBSD: patch-lex_c,v 1.5 2011/06/25 15:33:33 jasper Exp $
      static int isfunc = 0;
      static bool isgoto = 0;
      static bool colstate = 0;
-@@ -642,7 +642,7 @@ nmgetch() 
+@@ -642,7 +644,7 @@ nmgetch() 
  
  #endif
  

math/sc/patches/patch-sc_h

@@ -0,0 +1,11 @@
+$OpenBSD: patch-sc_h,v 1.1 2011/06/26 09:48:50 sthen Exp $
+--- sc.h.orig	Sat Jun 25 23:49:22 2011
++++ sc.h	Sat Jun 25 23:50:59 2011
+@@ -304,6 +304,7 @@ struct go_save {
+ #define is_deleted   0020
+ #define is_locked    0040
+ #define is_label     0100
++#undef is_cleared
+ #define is_cleared   0200
+ #define may_sync     0400
+ 

math/sc/patches/patch-torev

@@ -1,8 +1,7 @@
-$OpenBSD: patch-torev,v 1.3 2011/06/25 15:36:08 jasper Exp $
+$OpenBSD: patch-torev,v 1.4 2011/06/26 09:48:50 sthen Exp $
 --- torev.orig	Tue May  8 07:19:34 2001
 +++ torev	Sat Jun 25 17:30:42 2011
-@@ -1,4 +1,5 @@
- REVISION=`sed -e '/Revision/!D' -e 's/.*$Revision: 1.3 $.*/\1/' version.c` 
+@@ -2,3 +2,4 @@
  sed -e s/pname/$name/g -e s/PNAME/$NAME/g \
  	-e "s%#LIBDIR#%$LIBDIR%g" \
 -	-e "s/#REVISION#/$REVISION/" $1

math/sc/patches/patch-vi_c

@@ -0,0 +1,24 @@
+$OpenBSD: patch-vi_c,v 1.1 2011/06/26 09:48:50 sthen Exp $
+--- vi.c.orig	Fri Jul 12 01:48:29 2002
++++ vi.c	Sat Jun 25 23:52:50 2011
+@@ -16,7 +16,9 @@
+ #include <signal.h>
+ #include <curses.h>
+ #include <ctype.h>
++#include <unistd.h>
+ #include <stdlib.h>
++#include <stdbool.h>
+ #include "sc.h"
+ 
+ #if defined(REGCOMP)
+@@ -39,10 +41,6 @@ void gototop();
+ void gotobottom();
+ 
+ #define istext(a) (isalnum(a) || ((a) == '_'))
+-
+-#define bool	int
+-#define true	1
+-#define false	0
+ 
+ static void append_line();
+ static void back_hist();

math/sc/patches/patch-xmalloc_c

@@ -0,0 +1,16 @@
+$OpenBSD: patch-xmalloc_c,v 1.1 2011/06/26 09:48:50 sthen Exp $
+--- xmalloc.c.orig	Fri Apr 26 00:37:58 2002
++++ xmalloc.c	Sat Jun 25 23:47:42 2011
+@@ -4,11 +4,9 @@
+  */
+ 
+ #include <curses.h>
++#include <stdlib.h>
+ #include "sc.h"
+ 
+-extern char	*malloc();
+-extern char	*realloc();
+-extern void	free();
+ void		fatal();
+ 
+ #ifdef SYSV3