darktable

I just compiled dt with clang and got (besides tons of false positives) 7 warnings worth looking at:

.../src/libs/lib.c:219:13: warning: if statement has empty body [-Wempty-body]
    if(blob);
            ^

.../src/views/lighttable.c:166:3: warning: Declared variable-length array (VLA) has zero size
  int32_t imgids[count];
  ^              --~

.../src/libs/export.c:648:3: warning: Null pointer passed as an argument to a 'nonnull' parameter
  memcpy(params+pos, fdata, fsize); pos += fsize;
  ^                  --~

.../src/libs/export.c:649:3: warning: Null pointer passed as an argument to a 'nonnull' parameter
  memcpy(params+pos, sdata, ssize); pos += ssize;
  ^                  --~

.../src/iop/demosaic.c:128:69: warning: The left operand of '>' is a garbage value
          for (int i=0;i<8;i++) for(int ii=i+1;ii<9;ii++) if(med[i] > med[ii]) SWAP(med[i], med[ii]);
                                                             --- ^

.../src/imageio/storage/flickr.c:649:102: warning: Dereference of null pointer
    flickcurl_photosets_addPhoto (p->flickr_api->fc, p->flickr_api->current_album->id, photo_status->photoid);
                                                                                                     ^

.../imageio/storage/flickr.c:633:76: warning: Dereference of null pointer
    photoset_id = _flickr_api_create_photoset(p->flickr_api, photo_status->photoid);
                                                                           ^