Re: [CMake] VS2019 LLVM Toolset?

2019-10-24 Thread Mojca Miklavec
On Thu, 24 Oct 2019 at 21:36, Osman Zakir wrote:
>
> Yes, I looked at this: 
> https://devblogs.microsoft.com/cppblog/clang-llvm-support-in-visual-studio/ 
> so I kind of get it.  VS2019 has built-in support for LLVM.  I of course do 
> have LLVM installed.  So for this, I have to put "ClangCL" as the argument to 
> -T?  Okay, thanks.  I'll try that.

The relevant part is only the first screenshot.


Please note that Visual Studio 2019 also has some kind of "native
support for CMake", so you don't even need to run CMake manually to
generate the project. You just open a folder with CMakeLists and
generate projects on the fly with whichever toolset you prefer. I was
playing with it a while back with a Preview version, but it kept
crashing too often to be useful. They have released a few updates
since, but I never tested again, so I'm not sure if it got better or
not (I hope it did), I simply keep using the traditional way for now.

Mojca
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Re: [CMake] VS2019 LLVM Toolset?

2019-10-24 Thread Osman Zakir
Yes, I looked at this: 
https://devblogs.microsoft.com/cppblog/clang-llvm-support-in-visual-studio/ so 
I kind of get it.  VS2019 has built-in support for LLVM.  I of course do have 
LLVM installed.  So for this, I have to put "ClangCL" as the argument to -T?  
Okay, thanks.  I'll try that.
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Re: [CMake] VS2019 LLVM Toolset?

2019-10-24 Thread Mojca Miklavec
On Thu, 24 Oct 2019 at 20:28, Osman Zakir wrote:
>
> Hi.  I tried to specify the LLVM Toolset for VS2019 by doing "-T LLVM" and 
> also "-T llvm" but it failed both times.

For me "-T ClangCL" seems to have worked (provided that you install
Clang with VS 2019, of course).
(To figure out the potentially correct value I looked into the xml
project file generated when I manually changed the toolset and saved
the project.)

Under 2017 this was a separate "plugin" (or whatever it was called),
while VS 2019 provides it natively.


What I could not get working correctly under this CMake-generated
setup are the unit tests for CUDA (there must be some faulty compiler
flags).

Mojca
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[CMake] VS2019 LLVM Toolset?

2019-10-24 Thread Osman Zakir
Hi.  I tried to specify the LLVM Toolset for VS2019 by doing "-T LLVM" and also 
"-T llvm" but it failed both times.  What I get for the former is this:

"
cmake -G "Visual Studio 16 2019" -A x64 -T LLVM .. 
-DCMAKE_INSTALL_PREFIX="C:/Program Files/FLTK" -DCMAKE_BUILD_TYPE=Release
CMake Error at CMakeLists.txt:24 (project):​
  Failed to run MSBuild command:​
​
C:/Program Files (x86)/Microsoft Visual 
Studio/2019/Community/MSBuild/Current/Bin/MSBuild.exe​
​
  to get the value of VCTargetsPath:​
​
Microsoft (R) Build Engine version 16.3.2+e481bbf88 for .NET Framework​
Copyright (C) Microsoft Corporation. All rights reserved.​
​
Build started 10/24/2019 10:19:12 PM.​
Project "C:\fltk-1.3.5\build\CMakeFiles\3.15.4\VCTargetsPath.vcxproj" on 
node 1 (default targets).​
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppBuild.targets(379,5):
 error MSB8020: The build tools for LLVM (Platform Toolset = 'LLVM') cannot be 
found. To build using the LLVM build tools, please install LLVM build tools.  
Alternatively, you may upgrade to the current Visual Studio tools by selecting 
the Project menu or right-click the solution, and then selecting "Retarget 
solution". [C:\fltk-1.3.5\build\CMakeFiles\3.15.4\VCTargetsPath.vcxproj]​
Done Building Project 
"C:\fltk-1.3.5\build\CMakeFiles\3.15.4\VCTargetsPath.vcxproj" (default targets) 
-- FAILED.​
​
Build FAILED.​
​
"C:\fltk-1.3.5\build\CMakeFiles\3.15.4\VCTargetsPath.vcxproj" (default 
target) (1) ->​
(PrepareForBuild target) ->​
  C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppBuild.targets(379,5):
 error MSB8020: The build tools for LLVM (Platform Toolset = 'LLVM') cannot be 
found. To build using the LLVM build tools, please install LLVM build tools.  
Alternatively, you may upgrade to the current Visual Studio tools by selecting 
the Project menu or right-click the solution, and then selecting "Retarget 
solution". [C:\fltk-1.3.5\build\CMakeFiles\3.15.4\VCTargetsPath.vcxproj]​
​
0 Warning(s)​
1 Error(s)​
​
Time Elapsed 00:00:00.21​
​
​
  Exit code: 1​
​
​
​
-- Configuring incomplete, errors occurred!​
See also "C:/fltk-1.3.5/build/CMakeFiles/CMakeOutput.log".
"
For the latter it's similar.  Just change "'LLVM'" in the error message to 
"'LLVM'".
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