Steps to build the app

[pqrth]

I tried following these Stack Overflow answers in order to build this app, but I couldn't. I also installed the complete open source Qt Creator, but I got following error:

/Library/Developer/CommandLineTools/usr/bin/g++ -c -pipe -O2 -std=gnu++11  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -mmacosx-version-min=10.12 -Wall -W -fPIC -DQT_DEPRECATED_WARNINGS -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I/usr/local/Cellar/qt/5.13.0/lib/QtWidgets.framework/Headers -I/usr/local/Cellar/qt/5.13.0/lib/QtGui.framework/Headers -I/usr/local/Cellar/qt/5.13.0/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/usr/local/Cellar/qt/5.13.0/mkspecs/macx-g++ -F/usr/local/Cellar/qt/5.13.0/lib -o filedropper.o filedropper.cpp
filedropper.cpp:7:10: fatal error: 'taglib/taglib.h' file not found
#include <taglib/taglib.h>
         ^~~~~~~~~~~~~~~~~
1 error generated.
make: *** [filedropper.o] Error 1

So, could you please share the steps to build the app (esp. for macOS and on macOS)?