+ This was needed for in_cksum.c.
+ Generic in_cksum.c does not include all needed methods.
+ generic in_cksum.c is generally sub-optimal.
+ Only PowerPC support merged.
+ Makefile: It was not listed since it was a header
+ freebsd/netipsec/ipsec.c: include transformation did not occur
+ freebsd-to-rtems.py: Moved ipsec.c to source.
Added checks to ensure that only .h files are in header list
and that only .c files are in source list.