New subject: [Bug 54753] stdout/cout do not respect console code page in apps compiled with mingw-w64

30 Mar 2023


      https://bugs.winehq.org/show_bug.cgi?id=54753
Bug ID: 54753
           Summary: stdout/cout do not respect console code page in apps
                    compiled with mingw-w64
           Product: Wine
           Version: 8.4
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: wine-bugs@winehq.org
          Reporter: rjtulloh@gmail.com
      Distribution: ---
Created attachment 74247
  --> https://bugs.winehq.org/attachment.cgi?id=74247
Test program which outputs to the console in different ways.
I noticed some cases recently where Wine seemed to ignore the console code page
when apps were writing to stdout. Upon further investigation, I found  it seems
to be specific to apps compiled via mingw64.
I've attached a simple test program which demonstrated the issue. It switching
the code page to UTF8 and then outputs some Japanese glyphs in different ways.
On Windows, this program behaves as expected - the same string is printed for
times.The output does not differ based on the compiler used.
In Wine, if the program is compiled with mingw-w64, it will output gibberish 3
times, and the correct string is only produced by calling the WriteConsoleA
function.
This seems to be specific to the way mingw implements stdout, as if the
application is compiled with clang in MSVC compatibility mode, there is no
issue with the output. It does not seem to be a mingw bug, since the output is
correct on Windows.
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[Bug 54753] New: stdout/cout do not respect console code page in apps compiled with mingw-w64