Includes the changes from:

zbackup#72
zbackup#70
so this build of zbackup is usable.

backup_collector.hh

@@ -27,10 +27,10 @@ private:
   Bundle::Id savedId;
   int totalChunks, usedChunks, indexTotalChunks, indexUsedChunks;
   int indexModifiedBundles, indexKeptBundles, indexRemovedBundles;
-  bool indexModified;
   vector< string > filesToUnlink;
 
 public:
+  bool indexModified;
   string bundlesPath;
   bool verbose;
   ChunkStorage::Reader *chunkStorageReader;

tmp_mgr.cc

@@ -44,8 +44,13 @@ sptr< TemporaryFile > TmpMgr::makeTemporaryFile()
 {
   string name( Dir::addPath( path, "XXXXXX") );
 
-  umask( S_IRUSR | S_IWUSR | S_IRGRP );
+  // Set the umask to remove permisions of grp and other
+  // in case an insecure (older) mkstemp is used.
+  mode_t old_mask = umask( S_IRWXG | S_IRWXO );
+  // Create the temporary file.
   int fd = mkstemp( &name[ 0 ] );
+  // Reset the umask to the previous setting
+  umask(old_mask);
 
   if ( fd == -1 || close( fd ) != 0 )
     throw exCantCreate( path );

zutils.cc

@@ -319,6 +319,7 @@ void ZCollector::gc()
   Dir::Entry entry;
 
   BundleCollector collector;
+  collector.indexModified = true;
   collector.bundlesPath = getBundlesPath();
   collector.chunkStorageReader = &this->chunkStorageReader;
   collector.chunkStorageWriter = &chunkStorageWriter;