...March 2, 2020 SAN FRANCISCO (S&P Global Ratings) March 2, 2020--Houston-based information technology infrastructure software provider BMC Software Inc. announced today it will acquire mainframe software maker Compuware Corp. Terms of the transaction, including the pro forma capital structure, are unknown. We will review the combined company's business strategy, integration plan, capital structure, and financial policy with management at a later date, after which we will update our credit rating rationale....