Am 21.11.19 um 16:13 schrieb Marius Mikučionis: > 2019-11-21, th, 13:14 Bernhard Übelacker <bernha...@mailbox.org > <mailto:bernha...@mailbox.org>> wrote: > > > I forgot to mention that I used a local built wine-4.20. > There were lately some changes in that area in Wine, therefore > if you use an older Wine version it might behave different. > > https://source.winehq.org/git/wine.git/history/HEAD:/dlls/msvcrt > > > OK. > > > But does the executable with -lucrt print the expected > output in Windows? > > > Interesting: in windows with -lucrt prints correctly, but not in wine-4.0.2. > I see that Debian has wine64-development-4.19 and 4.20, I will test those. > > Summary for %e: > | no -lucrt | with -lucrt > windows | fail | pass > wine-4.0.2 | fail | fail > wine-4.19 | fail | pass > wine-4.20 | fail* | pass > > Summary for %z: > | no -lucrt | with -lucrt > windows | fail | pass > wine-4.0.2 | fail | fail > wine-4.19 | fail | fail > wine-4.20 | fail | pass > > * wine-4.20 also prints extra debug information for %e without -lucrt: > 0009:err:msvcrt:MSVCRT__invalid_parameter (null):0 (null): (null) 0 > > Looks like the issue is with the runtime environment and not with mingw. > I still would like to understand if/why -lucrt is necessary in this case. > The documentation does not mention any libraries, only headers. > > > > At least the binaries produced in my tests behave the same > > in Wine and Windows. > > > > Even without -lucrt ? > > The ucrt adds those api-ms-win-crt-* dependencies, which do not > seem to > > be necessary. > > Looking at the complete output of i686-w64-mingw32-objdump shows that > without -lucrt strftime is imported from msvcrt.dll. > With -lucrt it imports strftime from api-ms-win-crt-time-l1-1-0.dll. > That is what I guess makes the difference. > > > Does that mean that strftime implementation in msvcrt.dll is faulty? >
>From my point of view, Microsoft cannot change msvcrt.dll because plenty legacy software may rely on the "old" behaviour. Therefore we got then msvcr90.dll and so on. And now they invented UCRT. As Stephen wrote in message 20, if you compile with visual studio the binary will link also against these UCRT libraries. And documentation seems just to cover supported development environments... > -- > Marius Kind regards, Bernhard
