virtualbox5: fix build errors with gcc 10

Fixes #4106

repos/ports/ports/virtualbox5.hash

@@ -1 +1 @@
-e60d9717f4833b0cba86ddb3b461925d974c5fa1
+a4d2f03ac0c0d8f7d7c3a4c3b284a68fb259cbc8

repos/ports/src/virtualbox5/frontend/console.cc

@@ -15,6 +15,8 @@
 #include <libc/component.h>
 #include <util/xml_node.h>
 
+#include <cstdlib>
+
 #include <VBox/settings.h>
 #include <SharedClipboard/VBoxClipboard.h>
 #include <VBox/HostServices/VBoxClipboardSvc.h>

repos/ports/src/virtualbox5/patches/narrowing.patch

@@ -0,0 +1,15 @@
+Fix 'narrowing conversion' error
+
+diff --git a/src/app/virtualbox/src/VBox/Main/src-client/ConsoleImpl2.cpp b/src/app/virtualbox/src/VBox/Main/src-client/ConsoleImpl2.cpp
+index 3693927..6975ed2 100644
+--- a/src/app/virtualbox/src/VBox/Main/src-client/ConsoleImpl2.cpp
++++ b/src/app/virtualbox/src/VBox/Main/src-client/ConsoleImpl2.cpp
+@@ -5262,7 +5262,7 @@ int Console::i_configNetwork(const char *pszDevice,
+                 {
+                     switch (hrc)
+                     {
+-                        case VERR_ACCESS_DENIED:
++                        case E_ACCESSDENIED:
+                             return VMSetError(VMR3GetVM(mpUVM), VERR_HOSTIF_INIT_FAILED, RT_SRC_POS,  N_(
+                                             "Failed to open '/dev/net/tun' for read/write access. Please check the "
+                                             "permissions of that node. Either run 'chmod 0666 /dev/net/tun' or "

repos/ports/src/virtualbox5/patches/series

@@ -37,3 +37,4 @@ vga.patch
 register.patch
 changeset82265.patch
 drvvd.patch
+narrowing.patch

repos/ports/src/virtualbox5/spec/nova/sup_old.cc

@@ -19,6 +19,10 @@
 #include "sup.h"
 #include "vmm.h"
 
+/* stdcxx includes */
+#include <cstdio>
+#include <cstdlib>
+
 /* VirtualBox includes */
 #include <iprt/ldr.h>
 #include <iprt/thread.h>