https://cygwin.com/pipermail/cygwin/2007-August/159938.html
sys/mman.h missing MCL_CURRENT ...
syshmissingmclcurrent
https://manpages.ubuntu.com/manpages/focal/man7/sys_mman.h.7posix.html
Ubuntu Manpage: sys/mman.h - memory management declarations
memory management declarations
memory managementubuntumanpagesysh
https://www.man7.org/linux/man-pages/man0/sys_mman.h.0p.html
sys_mman.h(0p) - Linux manual page
syshlinuxmanual
https://mman.co.ke/
MMAN ADVOCATES
advocates