What happened to include/asm-ppc??

I'm using lastest ELDK (4.1) with Linux 2.6.19.2.
After upgrading from ELDK 4.0 I can't get any of
my user apps to build.  The problem is that many
of the headers that were in include/asm-ppc are
now gone.  For example, posix_types.h and sigcontext.h.
All the other arches seem to have a full complement
of header files in their asm directories.  Can someone give me a clue??  Thanks!