[SOLVED] Make - Internal compiler Error under QT 5.14.2 "Q_CORE_EXPORT"

Issue

I just installed QT Creator with QT under Win10 to build an already existing project. (Under Ubuntu everything went fine running the Make file). I'm not an expert for QT therefore I'm not able to find out how to resolve the error:

C:\Qt\5.14.2\mingw73_64\include/QtCore/qfloat16.h:102:54: internal compiler error: in make_rtl_for_nonlocal_decl, at cp/decl.c:6590 Q_CORE_EXPORT static const quint32 mantissatable[];

My gcc version is 8.3.0 (x86_64-posix-seh, Built by strawberryperl.com project). Is there something missing or broken in the installation?

Solution

I just found out from qmake.stash, that the included script for creating the make file always referenced a false path for the gcc compiler. I therefore build i manually with the QT Creator and it worked as expected. So I guess the fault was due to different paths for gcc in the environmental variables.

Answered By - s kop