Make a 16-bit test in wine for krnl386.exe16

Bruno Jesus 00cpxxx at
Mon Nov 30 12:03:33 CST 2015

On Tue, Dec 1, 2015 at 1:17 AM, Austin English <austinenglish at> wrote:
> On Mon, Nov 30, 2015 at 2:52 AM, Michael Stefaniuc <mstefani at> wrote:
>> On 11/30/2015 03:47 AM, Bruno Jesus wrote:
>>> On Mon, Nov 30, 2015 at 2:13 AM, Nikolay Sivov <bunglehead at> wrote:
>>>> On 29.11.2015 20:30, Bruno Jesus wrote:
>>>>> Hi all, I'm trying to create tests for GetPrivateProfileString16 but
>>>>> it is not working as expected because the test is calling the kernel32
>>>>> version of the function instead of the krnl386.exe16.
>>>>> Is there any way to make a test that compiles and runs against krnl386
>>>>> instead of kernel32?
>>>>> I tried a few different things and the attached patch is the last
>>>>> attempt (the tests are wrong but that is not the point yet).
>>>> I think the main problem is to actually be able to build NE binaries,
>>>> for that you'll need tools that support this, for example openwatcom C
>>>> compiler, or some old enough Visual C++, maybe version 5 or 4.
>>> So basically it is not possible to integrate such tests in wine as a
>>> standard test like any other.
>> Afair Dan Kegel worked on that back in the days. Might be still
>> available somewhere on the net. The easiest would be to take that and
>> make it a separate project aka keep it out of tree. Providing a prebuilt
>> winetest16.exe would make it easy for people to test without having to
>> go through the pain of setting the build environment up.
>> bye
>>         michael
> It's at
> The initial problem IIRC was OpenWatcom's license, which isn't
> acceptable to Debian/Fedora/et al:
> Dan speculated that AJ wouldn't add a patch that used OpenWatcom since
> it's not packaged in the major distributions, but AFAIK he never
> actually asked :). Perhaps an optional build of win16 tests if it's
> installed would be acceptable.
> I've also exported a copy to my Github account:

Thanks for all answers, I installed OpenWatcom and was able to produce
the test I need and it works in Windows and not in Wine so the problem
was confirmed by tests (bug

I had a small problem tough, in the compiled version of the program
printf works in wine but does not in Windows (no, not a buffering
problem, fflush does not help). In Windows not a single line is
printed to the console, maybe that is correct, I don't know so I
changed to output a text file instead.

I tried compiling the win16 tests but there were too many compilation
errors, I'm probably doing something wrong. I'll be back to that in
some days.

The question that remains, how to submit a patch that was tested with
an external (not wine test suite) program? (test attached)
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