qt embedded jetson-xavier

[ununi]

Hello, I have a problem with cross compilation.
I'll briefly explain my situation.

Host PC: Ubuntu 18.04
Target: Jetson AGX Xavier

What I Want: Configuring the build kit in QT

What I did:

1. Install ToolChain: gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu
2. PATH Setting: gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin
   gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/lib
3. Install: qt-everywhere-src-5.15.0 (for produce crosscompile qmake)
4. Modifiy qmake.conf:
   I copied qt-everywhere-src-5.15.0/mkspecs/devices/linux-jetson-tx1-g++
   to linux-jetson-agx-xavier
   And I made some changes.
5. Configure(at qt-everywhere-src-5.15.0/qtbase):
   sudo ./configure -top-level -device linux-jetson-agx-xavier -device-option CROSS_COMPILE=
   /opt/xavier/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu- -prefix
   /opt/xavier/EmbeddedQt -make libs -no-pch -no-opengl -qt-zlib -qt-libpng -qt-libjpeg -no-cups
   -gui -make examples -opensource -confirm-license -qreal float -v

Problem:

1. ERROR: Qt requires a compliant STL library
   ERROR: C++11 <random> is required and is missing or failed to compile.

/usr/aarch64-linux-gnu/include/c++/7/cstdlib:75:15: fatal error: stdlib.h: No such file or directory
#include_next <stdlib.h>
^~~~~~~~~~
compilation terminated.
Makefile:179: recipe for target 'main.o' failed
make: *** [main.o] Error 1

2. When I searched about this error, I found this link.
   https://git.busybox.net/buildroot/commit/?id=3a0ed5d25e26cb2ec99a1da077c9dcfea67b0ecc

   So, I changed from 'QMAKE_CFLAGS_ISYSTEM = -isystem' to 'QMAKE_CFLAGS_ISYSTEM = ' in below files. But it still doesn't reflect and the build fails.
   qtbase/mkspecs/common/clang.conf
   qtbase/mkspecs/common/gcc-base.conf

[LOG]

• cd /opt/xavier/qt-everywhere-src-5.15.0/config.tests/arch && /opt/xavier/qt-everywhere-src-5.15.0/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" -early "CONFIG += cross_compile" /opt/xavier/qt-everywhere-src-5.15.0/qtbase/config.tests/arch
• cd /opt/xavier/qt-everywhere-src-5.15.0/config.tests/arch && MAKEFLAGS= /usr/bin/make

/usr/bin/aarch64-linux-gnu-g++ -c -pipe -mtune=cortex-a57.cortex-a53 -march=armv8-a -O2 -w -fPIC -I/opt/xavier/qt-everywhere-src-5.15.0/qtbase/config.tests/arch -I. -isystem /usr/include -isystem /usr/aarch64-linux-gnu/include -isystem /usr/include/aarch64-linux-gnu -I/opt/xavier/qt-everywhere-src-5.15.0/qtbase/mkspecs/devices/linux-jetson-agx-xavier -o arch.o /opt/xavier/qt-everywhere-src-5.15.0/qtbase/config.tests/arch/arch.cpp
/usr/bin/aarch64-linux-gnu-g++ -Wl,-O1 -Wl,-rpath-link,/usr/lib -Wl,-rpath-link,/usr/aarch64-linux-gnu/lib -Wl,-rpath-link,/usr/lib/aarch64-linux-gnu -Wl,-rpath-link,/lib/aarch64-linux-gnu -o arch arch.o -L/usr/lib -L/usr/aarch64-linux-gnu/lib -L/lib/aarch64-linux-gnu -L/usr/lib/aarch64-linux-gnu
Detected architecture: arm64 (neon)

Thanks in advance.

[jeremy.li]

Add 'QMAKE_CFLAGS_ISYSTEM = ' to your device conf.