Compiling in debug mode fails

[Jonathan Levanon]

Hi,
I'm trying to compile my project in debug mode in the Qt creator (Qt Creator 4.6.0-rc1 (4.5.83)). I'm using qmake, and this is my pro file

TEMPLATE = app
TARGET = ...
CONFIG += c++17

CONFIG -= gnu++17
LIBS += -lXi -ldl -lm
LIBS += -lX11
LIBS += -lGL
LIBS += -lmediainfo
LIBS += -lglut #-lusb-1.0
LIBS += -lGLU
LIBS += -lpython2.7
CONFIG -= no-pkg-config
CONFIG += link_pkgconfig
PKGCONFIG += opencv
QMAKE_CXX =  g++ -std=c++1z
QMAKE_CFLAGS = -march=native -mtune=native
QMAKE_CXXFLAGS = -march=native -mtune=native
QMAKE_CXXFLAGS_RELEASE -= -O
QMAKE_CXXFLAGS_RELEASE -= -O1
QMAKE_CXXFLAGS_RELEASE -= -O2
QMAKE_CXXFLAGS_RELEASE *= -O3
QMAKE_CXXFLAGS -= -std=gnu++11

QT = core gui concurrent
QT += widgets
QT += network
QT += opengl testlib
QT += multimedia
QT += multimediawidgets
QT += charts sql


SOURCES += \
....



HEADERS += \
....

includes...

DISTFILES += \
    untitled.supp \
    ../../uncrustify.cfg

RESOURCES += \
    ieresources.qrc

libs....

However, in debug mode I always get the -std=gnu++11 flag added automatically, and then c++14/17 feature don't compile. I'm using ubuntu 18.04 and gcc 7.3 (It also fails when trying to compile with clang 6).

Any suggestions?

[koahnig]

@Jonathan-Levanon

Why are you using a release candidate (4.6.0-rc1)of creator ?

Creator version 4.7.1 is already out. Release candidates still may have a problem.

Also CONFIG -= gnu++17 does not remove gnu++11 if that was your intension.

[aha_1980]

Hi @Jonathan-Levanon,

Try replacing CONFIG += c++17 with CONFIG += c++1z in the pro file.

[Jonathan Levanon]

thanks @aha_1980 , it worked

[aha_1980]

@Jonathan-Levanon So please mark this topic as SOLVED. Thanks!