Fix brokeness where <malloc.h> was included even though <stdlib.h>

is already there.

Approved by:	portmgr (erwin)

devel/libdwarf/Makefile

@@ -7,6 +7,7 @@
 
 PORTNAME=	libdwarf
 PORTVERSION=	20070703
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	http://reality.sgiweb.org/davea/
 

devel/libdwarf/files/patch-pro_alloc.c

@@ -0,0 +1,16 @@
+--- pro_alloc.c.orig	Wed Jul  4 01:37:21 2007
++++ pro_alloc.c	Wed Nov  7 12:35:05 2007
+@@ -40,11 +40,12 @@
+ #include "pro_incl.h"
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
++#else
++#include <malloc.h>
+ #endif /* HAVE_STDLIB_H */
+ #ifdef HAVE_STRING_H
+ #include <string.h>
+ #endif /* HAVE_STRING_H */
+-#include <malloc.h>
+ 
+ /*
+  When each block is allocated, there is a two-word structure