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Improve gif_load error messages

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* src/image.c (gif_load): Improve error reporting (bug#54848).
This commit is contained in:
Lars Ingebrigtsen 2022-04-11 12:32:55 +02:00
parent 7d5d0abd2d
commit 11080420dd
1 changed files with 14 additions and 3 deletions
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17
src/image.c
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@ -8754,10 +8754,21 @@ gif_load (struct frame *f, struct image *img)
rc = DGifSlurp (gif);
if (rc == GIF_ERROR || gif->ImageCount <= 0)
{
if (NILP (specified_data))
image_error ("Error reading `%s'", img->spec);
#if HAVE_GIFERRORSTRING
const char *errstr = GifErrorString (gif->Error);
if (errstr)
if (NILP (specified_data))
image_error ("Error reading `%s' (%s)", img->spec,
build_string (errstr));
else
image_error ("Error reading GIF data: %s",
build_string (errstr));
else
image_error ("Error reading GIF data");
#endif
if (NILP (specified_data))
image_error ("Error reading `%s'", img->spec);
else
image_error ("Error reading GIF data");
goto gif_error;
}