New subject: [Bug 33654] MSYS bash.exe redirection fails for ctest.exe (one of the CMake executables). Regression of recent wine-git from 1.5.25

25 May 2013


      http://bugs.winehq.org/show_bug.cgi?id=33654
Bug #: 33654
           Summary: MSYS bash.exe redirection fails for ctest.exe (one of
                    the CMake executables).  Regression of recent wine-git
                    from 1.5.25
           Product: Wine
           Version: 1.5.31
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: msvcrt
        AssignedTo: wine-bugs@winehq.org
        ReportedBy: irwin@beluga.phys.uvic.ca
    Classification: Unclassified
Created attachment 44546
  --> http://bugs.winehq.org/attachment.cgi?id=44546
Source code for "DoNotInheritStdPipes" redirection test
Under MSYS bash.exe, redirection of the ctest.exe command produces an empty
file for wine-1.5.31 but not for wine-1.5.19 (very heavily tested for my build
needs) or wine-1.5.25 (lightly tested for this specific problem).  For example,
in 1.5.31, but not 1.5.25 (or 1.5.19),
ctest.exe --version
gives the correct result ("ctest version 2.8.10.2") to the console created by
wineconsole, but
ctest.exe --version > ctest_version.out
produces an empty file.
"git bisect" shows the first wine commit to cause the problem was the first one
after 1.5.25 (f565e4a3157d38b50a25fc3b90014474b59fceba, msvcrt: Don't duplicate
standard handles during initialization.) Subsequently there was a style change
(8e5bebe26253f2725141a35f23b6f2e10fc7694d, msvcrt: Rename msvcrt_alloc_fd_from
to msvcrt_set_fd.) to the affected file, dlls/msvcrt/file.c.  Both these
commits were by Piotr Caban piotr@codeweavers.com.  If I revert
8e5bebe26253f2725141a35f23b6f2e10fc7694d and
f565e4a3157d38b50a25fc3b90014474b59fceba for wine-1.5.31 (note the reversed
patches apply cleanly), this fixes the issue.
To save wine developers having to dig around in the ctest code source from
CMake to figure out what Windows calls are being used to trigger this wine
regression, I attach standalone code for a simple test case which follows what
is done in ctest to handle stdout.  When this code is compiled with MinGW it
demonstrates the same redirection issue you get with ctest.  The only
difference from a standard C++ "Hello World" programme in this test code is the
call to DoNotInheritStdPipes which I just copied from the ctest source code.  I
don't understand DoNotInheritStdPipes, but one of the commit messages
associated with it when it was implemented in 2007 by the CMake developers had
the title "BUG: fix problem with stdout and stderr not showing up in ms dos
shells".  Anyhow, since 2007 DoNotInheritStdPipes has apparently been used for
executing ctest.exe on Microsoft Windows with no redirection issues on that
platform and that implies commit f565e4... causes a run-time difference between
the Wine and Microsoft versions of Windows.  But I have no access to Microsoft
Windows myself so that implication should be confirmed by compiling the
attached source code on Microsoft Windows and showing that redirection works
fine with it under MSYS bash.exe for that platform but not for wine-1.5.31
unless the two above patches (one just a style one) are reverted.
-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.

[Bug 33654] New: MSYS bash.exe redirection fails for ctest.exe (one of the CMake executables). Regression of recent wine-git from 1.5.25