$VAR1 = {
          'seeklib
' => 'SeekLib
',
          'test_src
' => 'test_src
',
          'frames
' 
          'st_vx6953_5m_bayer
' => 'ST_VX6953_5M_Bayer

##</code><code>##

foreach my $filename(keys %hash)

find(sub {
   push @{ $Hash_casemismatch{ $filename } }, grep( (/\/\Q$key\E#/), *.mk);

}, $cwd);

}