Unable to compile 0.10.4 on Windows

["Kerrison, Adam" <Adam_Kerrison@xxxxxxx>]

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

Thanks

Adam