Re: Unable to compile 0.10.4 on Windows

[Jakub Jelen <jjelen@xxxxxxxxxx>]

On 3/20/23 15:50, Kerrison, Adam wrote:
> I’ve been trying to build 0.10.4 on Windows using VS 2015 Update 3 
> (community) as we are moving things to OpenSSL 3.x
>
> Here is what I am running (from a VS developer prompt):
>
> cmake -G "Visual Studio 14 2015 Win64" C:\srclibssh-0.10.4 
> -DCMAKE_INSTALL_PREFIX=C:\builds  -DCMAKE_BUILD_TYPE=Releasee 
> -DCMAKE_SYSTEM_VERSION=6.1  -DOPENSSL_ROOT_DIR=C:\pkgs\openssl-3.0.8 
> -DZLIB_INCLUDE_DIR=C:\pkgs\zlib-1.2.11\include 
> -DZLIB_LIBRARY_DEBUG=C:\pkgs\zlib-1.2.11\lib\zlibwapi.lib 
> -DZLIB_LIBRARY_RELEASE=C:\pkgs\zlib-1.2.11\lib\zlibwapi.lib 
> -DCMAKE_USE_WIN32_THREADS_INIT=1 -DWITH_SERVER=ON -DWITH_GSSAPI=ON
>
> And I get:
>
> -- The C compiler identification is unknown
>
> -- Detecting C compiler ABI info
>
> -- Detecting C compiler ABI info - failed
>
> -- Check for working C compiler: C:\Program Files (x86)\Microsoft Visual 
> Studio 14.0\VC\BIN\x86_amd64\cl.exe
>
> -- Check for working C compiler: C:\Program Files (x86)\Microsoft Visual 
> Studio 14.0\VC\BIN\x86_amd64\cl.exe - broken
>
> CMake Error at C:/Program 
> Files/CMake/share/cmake-3.26/Modules/CMakeTestCCompiler.cmake:67 (message):
>
>    The C compiler
>
>      "C:\Program Files (x86)\Microsoft Visual Studio 
> 14.0\VC\BIN\x86_amd64\cl.exe"
>
>    is not able to compile a simple test program.
>
>    It fails with the following output:
>
>      Change Dir: C:/builds/CMakeFiles/CMakeScratch/TryCompile-ix1aqv
>
>      Run Build Command(s):C:/Program Files 
> (x86)/MSBuild/14.0/bin/MSBuild.exe cmTC_7d48c.vcxproj 
> /p:Configuration=Debug /p:Platform=x64 /p:VisualStudioVersion=14.0 /v:n 
> && Microsoft (R) Build Engine version 14.0.25420.1
>
>      Copyright (C) Microsoft Corporation. All rights reserved.
>
>      Build started 20/03/2023 14:36:06.
>
>      Project 
> "C:\builds\CMakeFiles\CMakeScratch\TryCompile-ix1aqv\cmTC_7d48c.vcxproj" 
> on node 1 (default targets).
>
>      PrepareForBuild:
>
>        Creating directory "cmTC_7d48c.dir\Debug\".
>
>        Creating directory 
> "C:\builds\CMakeFiles\CMakeScratch\TryCompile-ix1aqv\Debug\".
>
>        Creating directory "cmTC_7d48c.dir\Debug\cmTC_7d48c.tlog\".
>
>      InitializeBuildStatus:
>
>        Creating "cmTC_7d48c.dir\Debug\cmTC_7d48c.tlog\unsuccessfulbuild" 
> because "AlwaysCreate" was specified.
>
>      ClCompile:
>
>        C:\Program Files (x86)\Microsoft Visual Studio 
> 14.0\VC\bin\x86_amd64\CL.exe /c /W1 /WX- /O2 /D _MBCS /D 
> "CMAKE_INTDIR=\"Debug\"" /Gm- /MD /GS /fp:precise /Zc:wchar_t 
> /Zc:forScope /Zc:inline /Fo"cmTC_7d48c.dir\Debug\\" 
> /Fd"cmTC_7d48c.dir\Debug\vc140.pdb" /Gd /TC /errorReport:queue 
> "C:\builds\CMakeFiles\CMakeScratch\TryCompile-ix1aqv\testCCompiler.c"
>
>      TRACKER : error TRK0002: Failed to execute command: ""C:\Program 
> Files (x86)\Microsoft Visual Studio 14.0\VC\bin\x86_amd64\CL.exe" 
> @C:\Users\adam\AppData\Local\Temp\tmpb254535fb3324f56bea10ac7806c08c6.rsp". The operation completed successfully. [C:\builds\CMakeFiles\CMakeScratch\TryCompile-ix1aqv\cmTC_7d48c.vcxproj]
>
> Its failed but the operation completed successfully!? I found the C code 
> its trying to compile and I can compile that manually without issue.
>
> I don’t know enough about cmake to debug this – can anyone give me some 
> pointers?
>
> I realize this is an old compiler but it was already installed so I was 
> trying to use it for some tests … I can upgrade but I would like to 
> avoid that if there is a simpler solution

Hi,
I am not a windows developer so I do not have much experience with 
building with VS. The version 14 is not one of the latest so before 
debugging further, I would try with some newer compiler. We are now 
running a CI with VS 15 and it works just ok:

https://gitlab.com/libssh/libssh-mirror/-/jobs/3963003368

You can check how the libssh is built in the ci also in our gitlab 
configuration to make sure all dependencies are installed on your side:

https://gitlab.com/libssh/libssh-mirror/-/blob/master/.gitlab-ci.yml#L459

Regards,
--
Jakub Jelen
Crypto Team, Security Engineering
Red Hat, Inc.