make -C /usr/src/linux SUBDIRS=/var/tmp/portage/cdemu-0.7/work/cdemu-0.7 modules
make[1]: Entering directory `/usr/src/linux-2.6.17-gentoo-r2'
  CC [M]  /var/tmp/portage/cdemu-0.7/work/cdemu-0.7/cdemu.o
/var/tmp/portage/cdemu-0.7/work/cdemu-0.7/cdemu.c:642: error: unknown field ‘dev_ioctl’ specified in initializer
/var/tmp/portage/cdemu-0.7/work/cdemu-0.7/cdemu.c:642: warning: initialization makes integer from pointer without a cast
/var/tmp/portage/cdemu-0.7/work/cdemu-0.7/cdemu.c:646: error: ‘CDC_IOCTLS’ undeclared here (not in a function)
make[2]: *** [/var/tmp/portage/cdemu-0.7/work/cdemu-0.7/cdemu.o] Error 1
make[1]: *** [_module_/var/tmp/portage/cdemu-0.7/work/cdemu-0.7] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.17-gentoo-r2'
make: *** [all] Error 2

!!! ERROR: app-cdr/cdemu-0.7 failed.
Call stack:
  ebuild.sh, line 1545:   Called dyn_compile
  ebuild.sh, line 940:   Called src_compile
  cdemu-0.7.ebuild, line 23:   Called die

!!! (no error message)
!!! If you need support, post the topmost build error, and the call stack if relevant.