GUI: perform up to date check before previewing a subdoc. This is for example to avoid showing the wrong message if a mail folder has been compacted

src/index/fsindexer.cpp

@@ -282,7 +282,7 @@ void FsIndexer::setlocalfields(Rcl::Doc& doc)
     }
 }
 
-static void makesig(const struct stat *stp, string& out)
+void FsIndexer::makesig(const struct stat *stp, string& out)
 {
     char cbuf[100]; 
     sprintf(cbuf, OFFTPC "%ld", stp->st_size, (long)stp->RCL_STTIME);

src/index/fsindexer.h

@@ -24,10 +24,10 @@ using std::list;
 
 #include "indexer.h"
 #include "fstreewalk.h"
-#include "rcldb.h"
 
 class DbIxStatusUpdater;
 class FIMissingStore;
+struct stat;
 
 /** Index selected parts of the file system
  
@@ -69,6 +69,9 @@ class FsIndexer : public FsTreeWalkerCB {
     FsTreeWalker::Status 
     processone(const string &fn, const struct stat *, FsTreeWalker::CbFlag);
 
+    /** Make signature for file up to date checks */
+    static void makesig(const struct stat *stp, string& out);
+
  private:
     FsTreeWalker m_walker;
     RclConfig   *m_config;