Thanks very much for libraw and for the latest update!
I'm trying to build libRaw with Gopro raw support against the current Adobe DNG sdk, as explained in README.GoPro.txt, but I can't get it to build. I'm using https://download.adobe.com/pub/adobe/dng/dng_sdk_1_5.zip
I've applied the patches you mentioned. Compilation of gpr_sdk fails with:
gpr/src/source/lib/gpr_sdk/private/gpr.cpp:583:47: error: no member named
'GetGPMFPayload' in 'dng_host'
dng_memory_block* gpmf_payload = host.GetGPMFPayload().Get();
Indeed, GetGPMFPayload() is added in GoPro's version of dng_host. And a couple of more errors, IsVc5Image() and ReadVc5Image() in dng_host. So there must be more patched needed. Do you happen to have them?