[Bug 58039] [NOT A BUG] Wine's "bottles" optimization when using mingw64-gcc

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=58039

--- Comment #1 from Artem S. Tashkinov  ---
Of course I could use something like (courtesy of ChatGPT, not tested, use at
your own risk):

```Bash

#!/bin/bash

dirA="A"  # Set to your actual directories
dirB="B"

# Step 1: Find all files in B and store their hashes in an associative array
declare -A hashes
while IFS="  " read -r hash file; do
    hashes["$hash"]="$file"
done < <(find "$dirB" -type f -exec sha256sum {} +)

# Step 2: Find files in A, check for matching hashes, and replace with symlinks
find "$dirA" -type f -exec sha256sum {} + | while IFS="  " read -r hash fileA;
do
    if [[ -n "${hashes[$hash]}" ]]; then
        fileB="${hashes[$hash]}"
        absFileA=$(realpath "$fileA")
        absFileB=$(realpath "$fileB")

if [ -f "$absFileA" ] && [ -f "$absFileB" ]; then
            rm "$absFileA"
            ln -s "$absFileB" "$absFileA"
            echo "Replaced $absFileA with symlink to $absFileB"
        fi
    fi
done
```

to replace files in WINEPREFIX'es with their original systemwide counterparts
but that needs to be done after every Wine update and this is just not nice.