suppress warnings, add missing thow_exception call (Lars Gullik Bjønnes)

[SVN r21569]

src/exception.cpp

@@ -47,10 +47,10 @@ namespace fs = boost::filesystem;
 
 namespace
 {
+# ifdef BOOST_WINDOWS
   std::string system_message( int sys_err_code )
   {
     std::string str;
-# ifdef BOOST_WINDOWS
     LPVOID lpMsgBuf;
     ::FormatMessageA( 
         FORMAT_MESSAGE_ALLOCATE_BUFFER | 
@@ -68,11 +68,16 @@ namespace
     while ( str.size()
       && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
         str.erase( str.size()-1 );
-# else
-    str += std::strerror( errno );
-# endif
     return str;
   }
+# else
+  std::string system_message( int )
+  {
+    std::string str;
+    str += std::strerror( errno );
+    return str;
+  }
+# endif
 
   struct ec_xlate { int sys_ec; fs::error_code ec; };
   const ec_xlate ec_table[] =

src/operations_posix_windows.cpp

@@ -451,7 +451,7 @@ namespace boost
 
       const std::size_t buf_sz = 32768;
       boost::scoped_array<char> buf( new char [buf_sz] );
-      int infile, outfile=0;  // init quiets compiler warning
+      int infile=0, outfile=0;  // init quiets compiler warning
       struct stat from_stat;
 
       if ( ::stat( from_file_ph.string().c_str(), &from_stat ) != 0

src/path_posix_windows.cpp

@@ -131,14 +131,17 @@ namespace boost
   {
     //  name_check functions  ----------------------------------------------//
 
+#   ifdef BOOST_WINDOWS
     BOOST_FILESYSTEM_DECL bool native( const std::string & name )
     {
-#   ifdef BOOST_WINDOWS
       return windows_name( name );
-#   else
-      return true;
-#   endif
     }
+#   else
+    BOOST_FILESYSTEM_DECL bool native( const std::string & )
+    {
+      return true;
+    }
+#   endif
 
     BOOST_FILESYSTEM_DECL bool no_check( const std::string & ) { return true; }
 
@@ -611,8 +614,9 @@ namespace boost
     {
       assert( new_check );
       if ( !safe_to_write_check )
-        throw filesystem_error( "boost::filesystem::default_name_check",
-                                "default name check already set" );
+        boost::throw_exception(
+          filesystem_error( "boost::filesystem::default_name_check",
+                            "default name check already set" ));
       default_check = new_check;
       safe_to_write_check = false;
     }