Warning fixes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42490 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/fileback.cpp

@@ -83,7 +83,7 @@ wxBackingFileImpl::wxBackingFileImpl(wxInputStream *stream,
     wxFileOffset len = m_stream->GetLength();
 
     if (len >= 0 && len + size_t(1) < m_bufsize)
-        m_bufsize = len + 1;
+        m_bufsize = size_t(len + 1);
 
     if (m_bufsize)
         m_buf = new char[m_bufsize];

src/common/fs_filter.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        fs_filter.cpp
+// Name:        src/common/fs_filter.cpp
 // Purpose:     wxFilter file system handler
 // Author:      Mike Wetherell
 // Copyright:   (c) 2006 Mike Wetherell
@@ -10,7 +10,7 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if wxUSE_FILESYSTEM
@@ -79,7 +79,7 @@ wxFSFile* wxFilterFSHandler::OpenFile(
                        );
 }
 
-wxString wxFilterFSHandler::FindFirst(const wxString& spec, int flags)
+wxString wxFilterFSHandler::FindFirst(const wxString& WXUNUSED(spec), int WXUNUSED(flags))
 {
     return wxEmptyString;
 }