It seems the file you are looking for is in the linux-kernel-headers package (as shown here http://packages.ubuntu.com/cgi- bin/search_contents.pl?word=unaligned.h&searchmode=searchfiles&case=insensitive&version=edgy&arch=i386)
-- can't find asm/unaligned.h https://launchpad.net/bugs/62080 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
