stdlib.h not found

[taku-s]

Hi all.

I want to use an external library with Qt5 on RaspberryPi3, but it doesn't go well with an error.
I installed the wiringPi library using apt.
After that, Qt5 project file .pro external library was added.

unix:! macx: LIBS + = -L $$ PWD /../../../../../ usr / lib / -lwiringPi
INCLUDEPATH + = $$ PWD /../../../../../ usr / include
DEPENDPATH + = $$ PWD /../../../../../ usr / include

However, when I build, I get the following error:

/usr/include/c++/8/bits/stl_algo.h:59:
/ usr / include / c ++ / 8 / algorithm: 62:
/usr/include/arm-linux-gnueabihf/qt5/QtCore/qglobal.h:142:
/usr/include/arm-linux-gnueabihf/qt5/QtGui/qtguiglobal.h:43:
/usr/include/arm-linux-gnueabihf/qt5/QtWidgets/qtwidgetsglobal.h:43:
/usr/include/arm-linux-gnueabihf/qt5/QtWidgets/qmainwindow.h:43:
/ usr / include / arm-linux-gnueabihf / qt5 / QtWidgets / QMainWindow: 1:
/home/pi/Qt/illumination/mainwindow.h:4:
/home/pi/Qt/illumination/main.cpp:1:
/ usr / include / c ++ / 8 / cstdlib: 75:
?Error: stdlib.h: No such file or directory
?#include_next <stdlib.h>

I don't know the cause of this error.
Thank you.

[aha_1980]

@taku-s looks like your toolchain has a setup problem.

Are you cross compiling or directly on the PI? Which toolchain are you using?

Regards

[Pablo J. Rogina]

@taku-s said in stdlib.h not found:

unix:! macx: LIBS + = -L $$ PWD /../../../../../ usr / lib / -lwiringPi
INCLUDEPATH + = $$ PWD /../../../../../ usr / include
DEPENDPATH + = $$ PWD /../../../../../ usr / include

in addition to answer @aha_1980 questions, are those paths Ok? I can see lots of spaces

[taku-s]

Thank you very much.
After all, it seems that it was a problem of g ++
It was solved by apt-get update.

[aha_1980]

Hi @taku-s,

glad you figured it out. So please mark this topic as SOLVED. Thanks!

[taku-s]

It was a mistake to say that updating solved the problem.
Definitely, once I was able to build and run, the next error was the same.
I tried out Pablo J. Rogina's “number of passes problem” and now I can build it.
Thank you very mutch.

But I can't rest assured.
This time, it is a path automatically created by QtCreator, but when I added an absolute path manually, I saw the same error.

For the time being, let's see the situation