view contrib/wix/defines.wxi @ 28960:14e683d6b273

transaction: clear callback instances after usage

Prevents double usage and helps reduce reference cycles, which
were observed to occur in `hg convert` and other scenarios where
there are multiple transactions per process.

<Include>

  <?if $(var.Platform) = "x64" ?>
    <?define IsX64 = yes ?>
  <?else?>
    <?define IsX64 = no ?>
  <?endif?>

</Include>