remove old comment
remove unused and broken stdenv/cygwin/default.nix
propagate build inputs hook for cygwins native flavour
add missing propagate hook
new rebase approach
increase rebase base for bigger cygwin1.dll
only add rebase hook for i686
Rebase blocksize.
Use bitshifts for size calculations.
Fix bitshift.
cygwin cmake
cygwin libarchive
cygwin mysql
proper rebase also for x86_64