Re: [PATCH 0/7] MR2956: Draft: Use libjpeg-turbo for JPEG decoding

[Torge Matthies (＠tmatthies)]

On Mon Jun  5 19:51:14 2023 +0000, Esme Povirk wrote:
> Why is the change to EXTRADEFS needed here?

It is needed because otherwise we'd get errors like this:

```
../dlls/windowscodecs/libjpeg.c: In function ‘jpeg_decoder_initialize’:
../dlls/windowscodecs/libjpeg.c:170:41: error: ‘JPEG_LIB_VERSION’ undeclared (first use in this function); did you mean ‘ELF_VERSION’?
  170 |     jpeg_CreateDecompress(&This->cinfo, JPEG_LIB_VERSION, sizeof(struct jpeg_decompress_struct));
```

I could have added the define at the top of jpeglib.h, however I wanted to keep the modifications to the original source files to a minimum. Would you like me to move the define from EXTRADEFS to jpeglib.h?