I hacked CPAN::Meta a little here: 

sub load_file {
  my ($class, $file, $options) = @_;
  print "My file is: $file\n";  #jhall
  $options->{lazy_validation} = 1 unless exists $options->{lazy_valida
+tion};

  croak "load_file() requires a valid, readable filename for $file"
    unless -r $file;

[download]

On the good box it does: 

jhall@jimwin8:~/.cpan/build/Module-Build-XSUtil-0.06-d9Wlfd$ perlgcc2 Build.PL
My file is: META.json
Created MYMETA.yml and MYMETA.json
Creating new 'Build' script for 'Module-Build-XSUtil' version '0.06'
My file is: META.yml
My file is: MYMETA.json
My file is: META.json
Merging cpanfile prereqs to MYMETA.yml
Merging cpanfile prereqs to MYMETA.json

On the bad box: 

oracle@localhost Module-Build-XSUtil-0.06-si9LjM$ perl Build.PL
Deleting _build
Creating custom builder _build/lib/MyBuilder.pm in _build/lib
Checking whether your kit is complete...
Looks good

Checking prerequisites...
Looks good

Deleting Build
Removed previous script 'Build'

Creating new 'Build' script for 'Module-Build-XSUtil' version '0.06'
My file is: MYMETA.json
load_file() requires a valid, readable filename for MYMETA.json at Build.PL line 56

I guess I need to sort out where is MYMETA.* created.... it must be buried in the new/create method... just difficult to sort out.

In reply to Re^3: Module::Build::XSUtil build problem by jimhallsun
in thread Module::Build::XSUtil build problem by jimhallsun

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