I see in sources libraw version still at 0.7.2
but at some point I integrated libraw 0.8.5 into libkdcraw, so specific Sony RAW files started to open.
Is upgrade easy enough for everyone to do, or should I try to make patch myself ?
first hit about specific libraw sources
so I tried to update included libraw to 0.9.1
turned out this version removed foveon support, so I copied and disabled this file from libraw 0.8.5
then narrowing error at vng_interpolate returned, so I fighted it back
then I discovered raw.imgdata.params.gamma_16bit = 1; was gone, so I commented out this call in kdcraw
at this point it compiles but I have not tested it yet (need to modify slackbuild). Even gzipped patch is nearly 100 kb!