Snippets for mtpaint 3.50.14 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/xhgajgzkjc5wr3inkn8yla2rl3mfrxa4-mtPaint-3.50.14.drv.

• png.c:5792:24: warning: ignoring return value of 'fscanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   5792 |                 j = 0; fscanf(fp, " /* XPM */%n", &j);
        |                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• png.c:9475:25: warning: ignoring return value of 'fscanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   9475 |                         fscanf(fp, "%i,%i,%i\n", rgb + 0, rgb + 1, rgb + 2);
        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• mygtk.c:5626:17: warning: ignoring return value of 'getcwd' declared with attribute 'warn_unused_result' [-Wunused-result]
   5626 |                 getcwd(wbuf, PATHBUF - 1);
        |                 ^~~~~~~~~~~~~~~~~~~~~~~~~
  

• layer.c:469:17: warning: ignoring return value of 'fgets' declared with attribute 'warn_unused_result' [-Wunused-result]
    469 |                 fgets(tin, 256, fp);
        |                 ^~~~~~~~~~~~~~~~~~~
  

• layer.c:490:17: warning: ignoring return value of 'fgets' declared with attribute 'warn_unused_result' [-Wunused-result]
    490 |                 fgets(tin, 256, fp);
        |                 ^~~~~~~~~~~~~~~~~~~
  

• spawn.c:813:40: warning: ignoring return value of 'chdir' declared with attribute 'warn_unused_result' [-Wunused-result]
    813 |                         if (directory) chdir(directory);
        |                                        ^~~~~~~~~~~~~~~~
  

• spawn.c:824:25: warning: ignoring return value of 'write' declared with attribute 'warn_unused_result' [-Wunused-result]
    824 |                         write(fds[1], &err, sizeof(err));
        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• fpick.c:533:25: warning: ignoring return value of 'getcwd' declared with attribute 'warn_unused_result' [-Wunused-result]
    533 |                         getcwd(full_name, PATHBUF - 1);
        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~