Greetings,
It appears that the given sha512 sum for gcc-7.4.0.tar.gz may be incorrect on at least the following mirrors: http://mirrors.concertpass.com/ http://www.netgull.com/ https://bigsearcher.com/ Regards, Farid Parpia IBM Corporation: 710-2-RF28, 2455 South Road, Poughkeepsie, NY 12601, USA; Telephone: (845) 433-8420 = Tie Line 293-8420
