Fix MinGW warning (SSL_OP_ALL needs to be unsigned in a 32 bit environment)
Fix MinGW warning (SSL_OP_ALL needs to be unsigned in a 32 bit environment)

GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver