>>> Emerging (1 of 1) sys-fs/mdadm-1.12.0 to /
>>> checking ebuild checksums ;-)
>>> checking auxfile checksums ;-)
>>> checking miscfile checksums ;-)
>>> checking mdadm-1.12.0.tar.bz2 ;-)
>>> Unpacking source...
>>> Unpacking mdadm-1.12.0.tar.bz2 to /var/tmp/portage/mdadm-1.12.0/work
 * Applying mdadm-1.9.0-dont-make-man.patch ...                           [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/mdadm-1.12.0/work/mdadm-1.12.0 ...
gcc -Wall -Werror -Wstrict-prototypes -DCONFFILE=\"/etc/mdadm.conf\" -O2 -march=athlon64 -pipe -DSendmail=\""/usr/sbin/sendmail -t"\"   -c -o mdadm.o mdadm.c
gcc -Wall -Werror -Wstrict-prototypes -DCONFFILE=\"/etc/mdadm.conf\" -O2 -march=athlon64 -pipe -DSendmail=\""/usr/sbin/sendmail -t"\"   -c -o config.o config.c
gcc -Wall -Werror -Wstrict-prototypes -DCONFFILE=\"/etc/mdadm.conf\" -O2 -march=athlon64 -pipe -DSendmail=\""/usr/sbin/sendmail -t"\"   -c -o mdstat.o mdstat.c
cc1: warnings being treated as errors
config.c: In function 'free_line':
config.c:192: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c:192: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c: In function 'devline':
config.c:245: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c:245: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c: In function 'arrayline':
config.c:279: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c:279: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c: In function 'mailline':
config.c:384: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c:384: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c: In function 'programline':
config.c:399: warning: dereferencing type-punned pointer will break strict-aliasing rules
config.c:399: warning: dereferencing type-punned pointer will break strict-aliasing rules
make: *** [config.o] Error 1
make: *** Waiting for unfinished jobs....
cc1: warnings being treated as errors
mdstat.c: In function 'mdstat_read':
mdstat.c:161: warning: dereferencing type-punned pointer will break strict-aliasing rules
mdstat.c:161: warning: dereferencing type-punned pointer will break strict-aliasing rules
make: *** [mdstat.o] Error 1

!!! ERROR: sys-fs/mdadm-1.12.0 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  mdadm-1.12.0.ebuild, line 32:   Called die