[gdal-dev] RFC68: C++11 compilation mode - Call for vote on adoption

[Joaquim Luis]

Thanks Even and Mateusz for clarifying this.

And since more people are probably confused as well I find 16 copies of  
api-ms-win-crt-runtime-l1-1-0.dll in my machine that has a updated Win10 +  
VS compilers. Among them, those installed by

Firefox
TortoiseSVN
MikTex
VScode
OneDrive
and others

curiously I have none in the Windows directory but looked at another Win  
10 computer that has no Compilers installed, and found them only under  
System32, SysWOW64 and an Windows Avast subdir.
Well, the usual Windows mess.

In summary, it seams fair to require that Win7 users will need to install  
the the VS2015 redistribuable while the others should not need to install  
anything else.

Joaquim


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> On jeudi 7 septembre 2017 07:47:40 CEST Mateusz Loskot wrote:
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>> On 7 September 2017 at 01:01, Joaquim Luis <jluis at ualg.pt> wrote:
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>> > On Wed, 06 Sep 2017 21:22:18 +0100, Mateusz Loskot  
>> <mateusz at loskot.net> wrote:
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>> >> On 6 September 2017 at 21:53, Kurt Schwehr <schwehr at gmail.com> wrote:
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>> >>> I was just about to write something along the lines that follow, but
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>> >>> Mateusz
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>> >>> looks to have more of an understanding.
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>> >>>
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>> >>> My best guess was that it is an incomplete install of Windows?  e.g.
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>> >>>
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>> >>>
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>> >>>  
>> https://support.microsoft.com/en-us/help/2999226/update-for-universal-c-
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>> >>> runtime-in-windows>>
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>> >> Universal C Runtime and Universal Windows Platform are two different
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>> >> beasts.
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>> >> Universal C Runtime is part of Windows 10+ system
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>> >> Kurt's link above leads to installer of Universal CRT for older
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>> >> Windows versions.
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>> >>
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>> >> Here is into to Universal CRT
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>> >>
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>> >>  
>> https://blogs.msdn.microsoft.com/vcblog/2015/03/03/introducing-the-univer
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>> >> sal-crt/
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>> >>
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>> >> It is all related to the fact that VS2015 and VS2017 are binary
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>> >> compatible.
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>> >
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>> > Well, this is in the minimum confusing and I may have been mislead by  
>> my
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>> > TortoiseSVN installation that ships those dlls. The link says:
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>> > "If you build software designed for use on Windows operating systems  
>> where
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>> > the Universal CRT is not guaranteed to be installed (i.e., Windows  
>> 8.1 and
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>> > below), your software will need to depend on the above mentioned  
>> Windows
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>> > Update packages to install the Universal CRT."
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>> Yes, it is confusing. I also completely ignored the fact that I'm on  
>> Windows
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>> 10. where the Universal CRT is a system component, and since for others
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>> there is system update, I assumed everyone with up-to-date older Windows
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>> system has got that too.
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> I can give you some feedback regarding this. My Ubuntu 16.04 ship by  
> default with wine 1.6 and I >tried newest Tamas GDAL builds for VS2017  
> and it didn't work because vcruntime140.dll that is >provided in the zip  
> requires linking against those api-ms-win-crt-*.dll that weren't  
> included in >it. I tried to install with winetricks the vs2015  
> redistribuable but didn't work because wine was >too old, and it  
> suggested to use Wine 2. Which I compiled from source, and then the GDAL  
> builds >worked there out of the box (no need to install the vs2015  
> redistribuable) since this version of >Wine provides the  
> api-ms-win-crt-*.dll (their Wine implementation, not the MS binaries  
> themselves)
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> I also see that OSGeo4W that now compiles GDAL & QGIS master against  
> VS2015 has a package for the >VS2015 redistribuable:
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> http://download.osgeo.org/osgeo4w/x86_64/release/msvcrt/msvcrt2015/
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> So I suspect the situation is the following :
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> * ship the api-ms-win-crt-*.dll next to your binaries and that should  
> work everywhere
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> * if not shippig the api-ms-win-crt-*.dll next to your binaries:
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>  - Win7: install the VS2015 redistribuable
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>  - Win8: Windows update
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>  - Win10: works out of the box
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> Even
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> --
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> Spatialys - Geospatial professional services
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