[CMake] Ignoring return codes on ADD_CUSTOM_COMMAND (hhc.exe)

[Jesper Eskilson]

Stefan Buschmann wrote:
> Hi all,
> 
> I'm currently having a problem using the HTMLHelp Compiler (hhc.exe) in
> my CMake-Scripts. I build the doxygen docs, then call hhc.exe and the
> .chm file is created correctly.
> But hhc.exe seems to return an error code, so the build has failed and
> my post-build commands are not invoked.
> 
> 1) Did anyone have similar problems with hhc.exe? 

Yes.

> Any ideas why hhc.exe
> is returning an error code although the .chm file is generated correctly
> and there are no error messages on the output?

No. Afaik, you can't use the error code for anything.

> 2) Is there a way to tell ADD_CUSTOM_COMMAND to ignore the return value
> of the process and consider it as always successfull?

I couldn't find any, so I used a Ruby script wrapper to invoke hhc.exe
and ignore the return value:

 if not system((ARGV.collect do |s| "\"#{s}\"" end).join(" "))
   puts "Command failed, ignoring exit code."
 end

-- 
/Jesper