The 4k-align squashfs patch was broken in the update to squashfs 4.4dev,
such that the patch was no longer actually applied in full (command line
option not even parsed).
Without these patches, the output of mksquashfs is not reproducible.
The patches are taken from https://github.com/squashfskit/squashfskit,
a fork of squashfs-tools, licensed under the GPL2 or later like
squashfs-tools itself.
This prevents failures like "libgcc_s.so.1 must be installed for
pthread_cancel to work" that occur because Glibc assumes libgcc_s.so.1
to be in Glibc's libdir.
This solution is pretty hacky, because the libgcc_s.so.1 from
bootstrap-tools might be too old. So if we update GCC, programs might
end up using an outdated libgcc_s.so.1. Ideally, we would build
libgcc_s.so.1 *before* Glibc, which might not be impossible...
Fixes#3548.
to be in the buildInputs). While at it, update to
version 4.2. "attr" is no longer needed as a dependency.
svn path=/nixpkgs/branches/stdenv-updates/; revision=31744
