Snippets for aom 3.13.3 from Fedora s390x

Sourced from https://kojipkgs.fedoraproject.org/packages/aom/3.13.3/3.fc45/data/logs/s390x/build.log.

• /builddir/build/BUILD/aom-3.13.3-build/aom-3.13.3/aom_dsp/grain_table.c:145:11: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    145 |     (void)fscanf(file, "\n");
        |           ^~~~~~~~~~~~~~~~~~
  

• /builddir/build/BUILD/aom-3.13.3-build/aom-3.13.3/av1/encoder/nonrd_opt.c:436:21: warning: variable ‘s’ set but not used [-Wunused-but-set-variable=]
    436 |     for (int c = 0, s = 0; c < max_blocks_wide; c += block_step, s += step) {
        |                     ^
  

• /builddir/build/BUILD/aom-3.13.3-build/aom-3.13.3/av1/encoder/tx_search.c:2422:19: warning: variable ‘blk_idx’ set but not used [-Wunused-but-set-variable=]
   2422 |   for (int r = 0, blk_idx = 0; r < txb_height; r += sub_txb_height) {
        |                   ^~~~~~~
  

• /builddir/build/BUILD/aom-3.13.3-build/aom-3.13.3/av1/decoder/decodemv.c:1353:10: warning: ‘nearestmv’ may be used uninitialized [-Wmaybe-uninitialized]
   1353 |   int_mv ref_mv[2] = { nearestmv[0], nearestmv[1] };
        |          ^