From 7d33089d1ad19c4e13e4972fc20b38b8fbddc41a Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 13 Jan 2010 20:21:39 +0000
Subject: [PATCH] [package] opkg: fallback to dest->root_dir if specified
 overlay_root does not exist on filesystem (#6498)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19121 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../opkg/patches/003-fs_overlay_support.patch | 23 +++++++++++++++----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/package/opkg/patches/003-fs_overlay_support.patch b/package/opkg/patches/003-fs_overlay_support.patch
index 0716ae481..0d4402ed1 100644
--- a/package/opkg/patches/003-fs_overlay_support.patch
+++ b/package/opkg/patches/003-fs_overlay_support.patch
@@ -26,22 +26,35 @@ Signed-off-by: Nicolas Thill <nico@openwrt.org>
       int noaction;
 --- a/libopkg/opkg_install.c
 +++ b/libopkg/opkg_install.c
-@@ -189,13 +189,19 @@
+@@ -21,6 +21,7 @@
+ #include <time.h>
+ #include <signal.h>
+ #include <unistd.h>
++#include <sys/stat.h>
+ 
+ #include "pkg.h"
+ #include "pkg_hash.h"
+@@ -189,13 +190,24 @@
  verify_pkg_installable(pkg_t *pkg)
  {
  	unsigned long kbs_available, pkg_size_kbs;
 -	char *root_dir;
 +	char *root_dir = NULL;
++	struct stat s;
  
  	if (conf->force_space || pkg->installed_size == 0)
  		return 0;
  
 -	root_dir = pkg->dest ? pkg->dest->root_dir :
 -						conf->default_dest->root_dir;
-+	if( !pkg->dest || !strcmp(pkg->dest->name, "root") )
-+		root_dir = conf->overlay_root;
-+	else
-+		root_dir = pkg->dest->root_dir;
++	if( pkg->dest )
++	{
++		if( !strcmp(pkg->dest->name, "root") && conf->overlay_root
++		    && !stat(conf->overlay_root, &s) && (s.st_mode & S_IFDIR) )
++			root_dir = conf->overlay_root;
++		else
++			root_dir = pkg->dest->root_dir;
++	}
 +
 +	if( !root_dir )
 +		root_dir = conf->default_dest->root_dir;