SAN FRANCISCO - BMC Software (BMC) reported a decline in second-quarter profit Thursday but raised its full-year earnings guidance.Net income at the software developer dropped 10% to $69.8 million, or 36 cents a share, from $77.4 million, or 38 cents a share, for the same quarter of last year. Excluding special charges, EPS was 56 cents. Analysts were expecting earnings of 51 cents a share. Revenue rose 11% to $466.7 million, from $420.7 million for the same period of last year. Analysts were looking for revenue of $467.4 million, according to Thomson Reuters. Operating margin, excluding special items, was 32%, compared to 28% for the same period of last year. Factoring in the increase in EPS for the quarter, the company raised full-year earnings guidance to a range of $2.15 to $2.25 a share, excluding special charges, from a prior range of $2.10 to $2.20. The guidance implies EPS, less items, of $1.16 to $1.26 for the second half of the year. Analysts were expecting $1.19 a share, less items. The board also announced the appointment of CEO Bob Beauchamp, who has held that position for eight years, to the additional position of chairman. Prior chairman Garland Cupp becomes presiding director. Shares were down $1.48, or 5.9%, to $23.71 in extended trading, after gaining 6.2% during the regular session. CA ( CA), competitor in the market for mainframe software, gained 9% Thursday after reporting strong profit and bookings growth late Wednesday for the quarter just ended.