There are other header files missing from lib6-dev in 20.04. I just had to fetch libio.h and _G_config.h from an old Ubuntu 18.04 to compile a programme on 20.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888302 Title: byteswap-16.h file is missed in 20.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1888302/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs