Description of problem:

While compiling a package that needs iopl i got this error message on ppc64:

 gcc -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mminimal-toc -o .libs/bmc-watchdog 
bmc_watchdog-bmc-watchdog.o  ../../libfreeipmi/src/.libs/libfreeipmi.so -lgcrypt
-lm 
../../libfreeipmi/src/.libs/libfreeipmi.so: undefined reference to `inb'
../../libfreeipmi/src/.libs/libfreeipmi.so: undefined reference to `outb'
../../libfreeipmi/src/.libs/libfreeipmi.so: undefined reference to `iopl'

After looking into it it turns out that ppc64 doesn't come with a sys/io.h
header file.

Version-Release number of selected component (if applicable):

glibc-2.7-2

How reproducible:

Always

Steps to Reproduce:
1. Try compile an application that uses iopl on ppc64
2. Watch it fail
3.
  
Actual results:

See above.

Expected results:

Program should compile resp. sys/io.h should be present on ppc64.

Additional info:

I'm not sure if iopl and friends are available at all on ppc64, so this might
actually be NOTABUG and just not possible on ppc64.