error C2440: 'default argument': cannot convert from 'const wchar_t [1]' to 'BSTR'

Question

I am getting below error while using this command qmake.exe project.pro -r -spec win32-msvc2015

C:\\Program Files (x86)\\Windows Kits\\8.1\\incl         


        

Answer 1

It's because some Windows headers violate strictStrings rules. You could try loosening checking even more:

win32: QMAKE_CXXFLAGS_RELEASE -= -Zc:strictStrings
win32: QMAKE_CFLAGS_RELEASE -= -Zc:strictStrings
win32: QMAKE_CFLAGS -= -Zc:strictStrings
win32: QMAKE_CXXFLAGS -= -Zc:strictStrings