tce-load -i 

cd squashfs4.2

cd squashfs-tools

sed -i 's@attr/xattr.h@sys/xattr.h@' *.c

patch -p1 < ../../squashfs_block_size_patch.diff
patch -p1 < ../../squashfs-perms.diff

Edit Makefile
#XATTR_SUPPORT = 1
CFLAGS ?=

make CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti"

sudo make CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" install