[CMake] Debugging custom commands with VS project generator

[David Cole]

When you convert that error code to hex, it's 0xc0000139, and if you
google that, you see it's an "entry point not found" error code.

Is something in the custom command trying to load a DLL that doesn't
have the expected export? Or perhaps trying to load a DLL of the wrong
architecture?

Or, there's a missing dependency to one of the DLLs you are loading:
https://stackoverflow.com/questions/1649384/c-debugging-exception-c0000139

I always convert "/" to "\" when modifying the Windows PATH
environment variable. Does "/" always work? (I noticed the forward
slash is being used in the set PATH statements in your build
output...)


HTH,
David C.



On Thu, Jun 22, 2017 at 6:02 AM, James Turner <james.turner at kdab.com> wrote:
> Hi,
>
> We’re trying to debug a failure of a custom build command, in a Cmake project using Visual Studio 2015. Unfortunately the command works on some Windows setups but not others - clearly there is something install-dependent going on. (It works on my local machine, but not on our Jenkins build server)
>
> Unfortunately, when the command fails, the only output is:
>
>         (CustomBuild target) ->
>   C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppCommon.targets(171,5): error MSB6006: "cmd.exe" exited with code -1073741511. [G:\Jenkins\workspace\FlightGear-Win\build32\src\Main\fgfs.vcxproj]
>
>
> (Full log is visible here: http://build.flightgear.org:8080/job/FlightGear-Win/2867/console )
>
> The relevant Cmake file is here:
>
>         https://sourceforge.net/p/flightgear/flightgear/ci/next/tree/src/Main/CMakeLists.txt#l46
>
> Is there any way to get more output from the custom command invocation? Prior to this failure, we had a different issue with missing DLLs, which we fixed by setting PATH via the ‘CMAKE_MSVCIDE_RUN_PATH’ value - this worked fine, so we think the command is running. And the ‘missing DLL’ error was reported + logged clearly in the console, unlike the current failure.
>
> I have tried setting VERBOSE=1 but I expect this doesn’t work with the VS generator? Any other way to get the stdout / stderr of the failing custom command would help.
>
> Kind regards,
> James
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