[Bug 43965] New: Project ERROR: Cannot run compiler 'g++' . Maybe you forgot to setup the environment?

https://bugs.winehq.org/show_bug.cgi?id=43965

Bug ID: 43965
           Summary: Project ERROR: Cannot run compiler 'g++'. Maybe you
                    forgot to setup the environment?
           Product: Wine
           Version: 2.3
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hi,

I have copied Qt 5.9.1 to my wine and put it into the PATH, I have this bug:
wine qmake
fixme:file:FindFirstFileExW flags not implemented 0x00000002
Project ERROR: Cannot run compiler 'g++'. Maybe you forgot to setup the
environment?

g++ is well detected:
wine g++
g++.exe: fatal error: no input files
compilation terminated.

* same problem with official and compiled with mingw version
* no problem with full windows into qemu

Cheers.