can not set permissions for usr/include/x11 qt

JacobNovitsky

how to solve it?
pro.file

TEMPLATE = app
CONFIG += console c++17
CONFIG -= app_bundle
CONFIG -= qt

SOURCES +=
linuxkbhit.cpp
main.cpp

HEADERS +=
linuxkbhit.h
LIBS += -L/usr/X11/lib -lX11
QT += x11extras
LIBS += -lX11

JacobNovitsky

JonB

@JacobNovitsky
You should not be doing anything which would cause to (try to) write/save to /usr/include/... anything --- that's a system area!

What are you doing to make this happen? You didn't read in /usr/include/X11/Xlib.h (perhaps while following definitions), and then accidentally change it, did you?

HEADERS +=
linuxkbhit.h

I might be mistaken, but I would have expected the first line to end with a \, i.e.

HEADERS += \
linuxkbhit.h

Similarly

SOURCES +=
linuxkbhit.cpp
main.cpp

ought be

SOURCES += \
linuxkbhit.cpp \
main.cpp

Is that relevant?

You have two LIBS += lines both adding -lX11. Probably no harm, but just commenting.