I ran this on older kernel, which worked fine - it skipped the build.
Then I tried RHEL7 alpha, which has more recent kernel: 3.10.0-0.rc4,
but it failed:

# ./fw_load
cp: cannot stat ‘/lib/udev/rules.d/50-firmware.rules’: No such file or
directory
fw_load     1  TBROK  :  Failed to copy
'/lib/udev/rules.d/50-firmware.rules' to '/etc/udev/rules.d/' at
fw_load.c:164
fw_load     2  TBROK  :  Remaining cases broken
fw_load     0  TWARN  :  tst_rmdir: TESTDIR was NULL; no removal attempted

I'll see if I can find out what happened to 50-firmware.rules,
it could some side-effect of systemd.

Would it be better to change failed copy command to just TWARN, and
continue testing? After that, test will completed with udev failed
test-cases, or if udev has those rules in the other configuration files,
everything will be fine.

I'd go with TCONF or skip udev testcases if we can't be sure that udev is running
and properly configured.

I'm also missing firmware.sh, in new udev (now merged with systemd tree),
50-firmware.rules file depends on some compile switch. Even when enabled
the rule looks like this:
http://cgit.freedesktop.org/systemd/systemd/tree/rules/50-firmware.rules

firmware.sh appears to be converted to .c now:
http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-firmware.