Revert "reconciled mongo build system with Tokutek/ft-index#198"

This reverts commit 2638b008c57f384fe0d40f112e62f929a51b2dc2.
Merge branch 'bugfixes/tokumx-1.4'
Revert "Revert "reconciled mongo build system with Tokutek/ft-index#198""

This reverts commit 4da2e312f0c3280b5436182fd09cbf4f7fa28e1a.