Difficulty compiling on OSX Mojave with latest Qt5?

[HughAndersonNUS]

Hi,
This is my foorst time trying to compile this software. I followed all the steps for installing on MacOS, but when it compiles, I get a series of errors, starting with:

[ 8%] Building CXX object openhantek/CMakeFiles/OpenHantek.dir/src/configdialog/DsoConfigColorsPage.cpp.o In file included from /Users/hugh/Downloads/openhantek-master/openhantek/src/configdialog/DsoConfigAnalysisPage.cpp:3: In file included from /Users/hugh/Downloads/openhantek-master/openhantek/src/configdialog/DsoConfigAnalysisPage.h:3: In file included from /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/QWidget:1: In file included from /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/qwidget.h:52: /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/qsizepolicy.h:51:82: error: In file included from invalid/Users/hugh/Downloads/openhantek-master/openhantek/src/configdialog/DsoConfigColorsPage.cpp :token 3at: In file included from start/Users/hugh/Downloads/openhantek-master/openhantek/src/configdialog/DsoConfigColorsPage.h :of3 : aIn file included from /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/QWidgetpreprocessor: 1expression: In file included from /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/qwidget.h:52: /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/qsizepolicy.h:51:82: error: invalid token at start of a preprocessor expression #if !defined(Q_CC_GNU) || defined(Q_CC_INTEL) || defined(Q_CC_CLANG) || Q_CC_GNU >= 408 ^ #if !defined(Q_CC_GNU) || defined(Q_CC_INTEL) || defined(Q_CC_CLANG) || Q_CC_GNU >= 408 ^ /usr/local/Cellar/qt/5.12.0/lib/QtWidgets.framework/Headers/qsizepolicy.h:68:1: error: unknown type name 'Q_DECL_CONST_FUNCTION' Q_DECL_CONST_FUNCTION inline uint qHash(QSizePolicy key, uint seed = 0) Q_DECL_NOTHROW;
... and then there are mnay more similar errors. Can someone point me in the correct direction?

Regards Hugh

[HughAndersonNUS]

Hi,
In the end, this turned out to be an issue with having QT4 also installed at the same time as QT5. Removing QT4 resolved the issue.
Cheers Hugh