[issue35825] Py_UNICODE_SIZE=4 fails to link on Windows

[INADA Naoki]

Change by INADA Naoki :


--
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue35825] Py_UNICODE_SIZE=4 fails to link on Windows

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I think this falls in the category of "don't do that", because Windows does not 
support wide builds.  If so, this issue should be closed as 'not a bug'.  If 
not, some Windows expert should enlighten me.

--
nosy: +terry.reedy

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[issue35825] Py_UNICODE_SIZE=4 fails to link on Windows

[Kristof Niederholtmeyer]

New submission from Kristof Niederholtmeyer 
:

When I change Py_UNICODE_SIZE from 2 (default) to 4 in PC/pyconfig.h, msvc-14 
gives the following error:
  _winreg.obj : error LNK2001: unresolved external symbol PyUnicode_DecodeMBCS 
[e:\kristof\SDR\sdrsandbox\w64\msvc140\Python-2.7.15\PCbuild\pythoncore.vcxproj]
  
e:\kristof\SDR\sdrsandbox\w64\msvc140\Python-2.7.15\PCBuild\\amd64\python27_snps_vp.dll
 : fatal error LNK1120: 1 unresolved externals 
[e:\kristof\SDR\sdrsandbox\w64\msvc140\Python-2.7.15\PCbuild\pythoncore.vcxproj]

The problem appears to be that the missing function gets disabled in 
unicodeobject.c with
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
...
#endif

while _winreg.c does not check the availability of this function.

Thanks,
Kristof

--
components: Build, Windows
messages: 334348
nosy: kristof, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Py_UNICODE_SIZE=4 fails to link on Windows
type: compile error
versions: Python 2.7

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