With the latest libewf experimental 20160224 I get this error:
[ 296s] ../../tsk/.libs/libtsk.so: undefined reference to `libewf_handle_read_random'
Removal of the "random" functions is documented in the Changelog file for libewf experimental so I assume they won't be coming back for the actual release. (It's been about 2 years since libewf had a non-experimental release, but Joachim has done a couple experimental releases this year.)