Hi, Thanks to both of you for taking the time to file the bug and investigate this!
On Thu, 21 Nov 2019 12:09:44 +0100, Marius Mikučionis <mmikucio...@gmail.com> wrote: > 2019-11-21, kt, 01:16 Bernhard Übelacker <bernha...@mailbox.org> rašė: > > First I fear that mingw-w64 does not link as much static > > as you expect it to. Yes, strftime and most other C library functions are implemented in the underlying CRT, not MinGW-w64. > > And the Microsoft page might just be right for later versions > > of c runtimes they provide. I think so too; there’s a drop-down to select different versions of Visual Studio, but all the versions for which documentation is currently provided use UCRT. > > Further I found this information [2], which is as far as > > I understand about recompiling mingw. > > But I tried just to modify the compile/link command, > > which I guess is kind of the expected output? > > > > $ i686-w64-mingw32-gcc -static -O3 -Wall -o strftime-ucrt-7.exe > > strftime.c -lucrt > > $ i686-w64-mingw32-objdump -p strftime-ucrt-7.exe | grep 'DLL Name:' > > DLL Name: KERNEL32.dll > > DLL Name: msvcrt.dll > > DLL Name: api-ms-win-crt-environment-l1-1-0.dll > > DLL Name: api-ms-win-crt-heap-l1-1-0.dll > > DLL Name: api-ms-win-crt-private-l1-1-0.dll > > DLL Name: api-ms-win-crt-runtime-l1-1-0.dll > > DLL Name: api-ms-win-crt-stdio-l1-1-0.dll > > DLL Name: api-ms-win-crt-string-l1-1-0.dll > > DLL Name: api-ms-win-crt-time-l1-1-0.dll > > I can reproduce this too. Yes, this is normal. Doing a proper link with UCRT requires at minimum overriding the GCC spec file, as described in https://sourceforge.net/p/mingw-w64/mailman/message/36621319/ > > $ wine strftime-ucrt-7.exe > > [%a]: [Tue] > > [%e]: [ 5] > > [%d]: [05] > > [%-d]: (empty) errno=22 > > [%#d]: [5] > > [%b]: [Nov] > > [%Y]: [2019] > > [%H]: [03] > > [%M]: [02] > > [%S]: [01] > > [%z]: [+0100] > > [%Z]: [Mitteleuropõische Zeit] > > [%b%e, %Y, %H:%M:%S %z]: [Nov 5, 2019, 03:02:01 +0100] > > > > (msvcrt.dll still appears; the same result for 7.0.0-2 and 6.0.0-3.) > > Your output is correct, but I am not getting that, very strange. I’m guessing this works for Bernhard because he’s using a newer version of Wine than either Marius or myself; %e was implemented in 4.18, for _MSVCR_VER 140 or later, and %z in 4.20. > > 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. They’re all part of the UCRT interface; you’ll get the same dependencies with Visual Studio. > Thank you for the effort, perhaps something strange is happening with my > setup, I could not find anyone else on internet with this issue. There’s nothing strange in your setup! I’m wondering what the appropriate solution is. Strictly speaking, this isn’t a bug in MinGW-w64, and using the default MSVCRT target there’s nothing much we can do. However it does raise the question of UCRT support in Debian... Regards, Stephen
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