D6772: Fix usage of query_qmake: differ between calls expecting qmake or not

[Aleix Pol Gonzalez]

apol added a comment.


  What's the background for the change?

INLINE COMMENTS

> ECMQueryQmake.cmake:19
>      if(NOT QMAKE_EXECUTABLE)
> -        set(${result_variable} "" PARENT_SCOPE)
> -        message(WARNING "Should specify a qmake Qt5 binary. Can't check ${qt_variable}")
> -        return()
> +        if(${ARGC} GREATER 2 AND ${ARGV2} STREQUAL "TRY")
> +            set(${result_variable} "" PARENT_SCOPE)

Use `cmake_parse_arguments`

REPOSITORY
  R240 Extra CMake Modules

REVISION DETAIL
  https://phabricator.kde.org/D6772

To: kossebau, #frameworks, ltoscano, rdieter, apol
Cc: #build_system
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