Hmm, while the SONAME is indeed odd, it isn't the cause of this afterall. I'm repackaging these as DEBs before consuming and dh_strip (which just does strip --remove-section=.note --remove-section=.comment --strip-unneeded) seems to be mangling something (loses 80 bytes even when it doesn't drop any sections). Easy enough to disable in the repackaging.
Any chance Intel will provide "official" DEBs sometime soon?
Amusingly, the .comment tags suggest that the linux binaries are actually built on Ubuntu but then packaged into RPMs?
$ objdump -s --section .comment usr/lib/isdct/libIntel.SSDFeatures.so.1.2.0
usr/lib/isdct/libIntel.SSDFeatures.so.1.2.0: file format elf64-x86-64
Contents of section .comment:
0000 4743433a 20285562 756e7475 20342e34 GCC: (Ubuntu 4.4
0010 2e332d34 7562756e 7475352e 31292034 .3-4ubuntu5.1) 4
0020 2e342e33 00 .4.3.