With this commit the following functions were implemented: - _mbsupr_s_l - converts multibyte string to uppercase, by using specified locale that's passed in. - _mbslwr_s_l - converts multibyte string to lowercase, by using specified locale that's passed in. - _mbctolower_l - converts multibyte uppercase character to lowercase character, by using specified locale that's passed in. - _mbctoupper_l - converts multibyte lowercase character to uppercase character, by using specified locale that's passed in.
More information about these methods are available at: https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/strupr-s-s...
After applying the patch the crash of the ChessBase application was fixed. More information: https://bugs.winehq.org/show_bug.cgi?id=45273
-- v5: revert spec definitions