CMake Errors while trying to cross compile for RPi 3B+ using Qt Creator

ak_07

I have a Yocto Build with meta-boot2qt and meta-qt6 layers running on my RPi 3B+. The build boots up and runs the default app fine. I have set up the device in Qt Creator. I have also set up the kit settings. Right as the project loads, even before I try to build, I get the CMake errors.

I tried searching for a solution. Most people are facing this issue due to some other reason, either on Windows, or the error is slightly different.

I can't figure out what is wrong. Below I am sharing my settings and the errors as well as log files.

Kit Settings: Screenshot from 2021-05-03 00-54-33.png

GCC Compiler Path: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc
G++ Compiler Path: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
Debugger: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb
CMake 3.20.2: /usr/local/bin/cmake
CMake Generator: Screenshot from 2021-05-03 00-58-36.png

CMake Configuration:
CMAKE_CXX_COMPILER:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
CMAKE_C_COMPILER:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc
CMAKE_MAKE_PROGRAM:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make
CMAKE_TOOLCHAIN_FILE:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/cmake/OEToolchainConfig.cmake

Error I get when Qt Creator tries to use CMake:

Running /usr/local/bin/cmake -S /home/dellpc/Documents/qt_apps/midnight_scroll -B /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV '-GUnix Makefiles' -DCMAKE_BUILD_TYPE:String=Debug -DCMAKE_SYSROOT:PATH=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi -DCMAKE_C_COMPILER_TARGET:STRING=arm-poky-linux-gnueabi -DCMAKE_CXX_COMPILER_TARGET:STRING=arm-poky-linux-gnueabi -DCMAKE_CXX_COMPILER:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ -DCMAKE_C_COMPILER:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc -DCMAKE_MAKE_PROGRAM:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make -DCMAKE_TOOLCHAIN_FILE:FILEPATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/cmake/OEToolchainConfig.cmake in /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV.
-- The CXX compiler identification is GNU 9.3.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Check for working CXX compiler: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ - broken
CMake Error at /usr/local/share/cmake-3.20/Modules/CMakeTestCXXCompiler.cmake:59 (message):
  The C++ compiler

    "/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make -f Makefile cmTC_73f94/fast && /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make  -f CMakeFiles/cmTC_73f94.dir/build.make CMakeFiles/cmTC_73f94.dir/build
    make[1]: Entering directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
    Building CXX object CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o
    /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi    -o CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o -c /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
    Linking CXX executable cmTC_73f94
    /usr/local/bin/cmake -E cmake_link_script CMakeFiles/cmTC_73f94.dir/link.txt --verbose=1
    /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o -o cmTC_73f94 
    /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: error: cmTC_73f94 uses VFP register arguments, CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o does not
    /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: failed to merge target specific data of file CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o
    collect2: error: ld returned 1 exit status
    make[1]: *** [CMakeFiles/cmTC_73f94.dir/build.make:99: cmTC_73f94] Error 1
    make[1]: Leaving directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
    make: *** [Makefile:127: cmTC_73f94/fast] Error 2
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:3 (project)


-- Configuring incomplete, errors occurred!
See also "/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeOutput.log".
See also "/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeError.log".
CMake process exited with exit code 1.
Elapsed time: 00:00.

Extremely long log file below:

CMakeOutput.log:

cat /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeOutput.log
The target system is: Linux -  - 
The host system is: Linux - 5.8.0-50-generic - x86_64
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ 
Build flags: 
Id flags: -c 

The output was:
0


Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "CMakeCXXCompilerId.o"

The CXX compiler identification is GNU, found in "/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/3.20.2/CompilerIdCXX/CMakeCXXCompilerId.o"

CMakeError.log:

Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ 
Build flags: 
Id flags: -c;--target=arm-poky-linux-gnueabi 

The output was:
1
arm-poky-linux-gnueabi-g++: error: unrecognized command line option '--target=arm-poky-linux-gnueabi'


Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ 
Build flags: 
Id flags:  

The output was:
1
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find Scrt1.o: No such file or directory
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find crti.o: No such file or directory
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find crtbeginS.o: No such file or directory
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lstdc++
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lm
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lgcc_s
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lgcc
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lc
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lgcc_s
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find -lgcc
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find crtendS.o: No such file or directory
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: cannot find crtn.o: No such file or directory
collect2: error: ld returned 1 exit status


Detecting CXX compiler ABI info failed to compile with the following output:
Change Dir: /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp

Run Build Command(s):/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make -f Makefile cmTC_ce8d4/fast && /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make  -f CMakeFiles/cmTC_ce8d4.dir/build.make CMakeFiles/cmTC_ce8d4.dir/build
make[1]: Entering directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi   -v -o CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o -c /usr/local/share/cmake-3.20/Modules/CMakeCXXCompilerABI.cpp
Using built-in specs.
COLLECT_GCC=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
Target: arm-poky-linux-gnueabi
Configured with: ../../../../../../work-shared/gcc-9.3.0-r0/gcc-9.3.0/configure --build=x86_64-linux --host=x86_64-pokysdk-linux --target=arm-poky-linux-gnueabi --prefix=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr --exec_prefix=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr --bindir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi --sbindir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi --libexecdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi --datadir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share --sysconfdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/etc --sharedstatedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/com --localstatedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/var --libdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi --includedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/include --oldincludedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/include --infodir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/info --mandir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/man --disable-silent-rules --disable-dependency-tracking --with-libtool-sysroot=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot --with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-multilib --enable-default-pie --enable-c99 --enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch --program-prefix=arm-poky-linux-gnueabi- --without-local-prefix --disable-install-libiberty --enable-lto --disable-libssp --enable-libitm --disable-bootstrap --disable-libmudflap --with-system-zlib --with-linker-hash-style=gnu --enable-linker-build-id --with-ppl=no --with-cloog=no --enable-checking=release --enable-cheaders=c_global --without-isl --with-gxx-include-dir=/not/exist/usr/include/c++/9.3.0 --with-build-time-tools=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot-native/usr/arm-poky-linux-gnueabi/bin --with-sysroot=/not/exist --with-build-sysroot=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot --enable-poison-system-directories --disable-static --enable-nls --with-glibc-version=2.28 --enable-initfini-array
Thread model: posix
gcc version 9.3.0 (GCC) 
COLLECT_GCC_OPTIONS='--sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi' '-v' '-o' 'CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o' '-c' '-shared-libgcc' '-mcpu=arm10tdmi' '-mtls-dialect=gnu' '-marm' '-march=armv5t'
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GNU C++14 (GCC) version 9.3.0 (arm-poky-linux-gnueabi)
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GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/arm-poky-linux-gnueabi/9.3.0/include"
ignoring nonexistent directory "/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/local/include"
ignoring nonexistent directory "/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../../arm-poky-linux-gnueabi/include"
#include "..." search starts here:
#include <...> search starts here:
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 /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/include/
End of search list.
GNU C++14 (GCC) version 9.3.0 (arm-poky-linux-gnueabi)
	compiled by GNU C version 9.3.0, GMP version 6.2.0, MPFR version 4.0.2, MPC version 1.1.0, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 755df72605e0e1937138e1ad15f3f448
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 /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/as -v -march=armv5t -meabi=5 -o CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o /tmp/cc8QwgGo.s
GNU assembler version 2.34.0 (arm-poky-linux-gnueabi) using BFD version (GNU Binutils) 2.34.0.20200220
COMPILER_PATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/
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Linking CXX executable cmTC_ce8d4
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/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi  -v CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o -o cmTC_ce8d4 
Using built-in specs.
COLLECT_GCC=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
COLLECT_LTO_WRAPPER=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/lto-wrapper
Target: arm-poky-linux-gnueabi
Configured with: ../../../../../../work-shared/gcc-9.3.0-r0/gcc-9.3.0/configure --build=x86_64-linux --host=x86_64-pokysdk-linux --target=arm-poky-linux-gnueabi --prefix=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr --exec_prefix=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr --bindir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi --sbindir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi --libexecdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi --datadir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share --sysconfdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/etc --sharedstatedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/com --localstatedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/var --libdir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi --includedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/include --oldincludedir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/include --infodir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/info --mandir=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/share/man --disable-silent-rules --disable-dependency-tracking --with-libtool-sysroot=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot --with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-multilib --enable-default-pie --enable-c99 --enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch --program-prefix=arm-poky-linux-gnueabi- --without-local-prefix --disable-install-libiberty --enable-lto --disable-libssp --enable-libitm --disable-bootstrap --disable-libmudflap --with-system-zlib --with-linker-hash-style=gnu --enable-linker-build-id --with-ppl=no --with-cloog=no --enable-checking=release --enable-cheaders=c_global --without-isl --with-gxx-include-dir=/not/exist/usr/include/c++/9.3.0 --with-build-time-tools=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot-native/usr/arm-poky-linux-gnueabi/bin --with-sysroot=/not/exist --with-build-sysroot=/home/dellpc/rpi_build/build-raspberrypi3/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-arm/9.3.0-r0/recipe-sysroot --enable-poison-system-directories --disable-static --enable-nls --with-glibc-version=2.28 --enable-initfini-array
Thread model: posix
gcc version 9.3.0 (GCC) 
COMPILER_PATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/
LIBRARY_PATH=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/lib/:/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/arm-poky-linux-gnueabi/9.3.0/:/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/
COLLECT_GCC_OPTIONS='--sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi' '-v' '-o' 'cmTC_ce8d4' '-shared-libgcc' '-mcpu=arm10tdmi' '-mtls-dialect=gnu' '-marm' '-march=armv5t'
 /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/collect2 -plugin /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/liblto_plugin.so -plugin-opt=/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccY0sFCN.res -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi --build-id --eh-frame-hdr --hash-style=gnu -dynamic-linker /lib/ld-linux.so.3 -X -m armelf_linux_eabi -pie -o cmTC_ce8d4 /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/Scrt1.o /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/crti.o /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/arm-poky-linux-gnueabi/9.3.0/crtbeginS.o -L/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0 -L/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/lib -L/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/arm-poky-linux-gnueabi/9.3.0 -L/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/arm-poky-linux-gnueabi/9.3.0/crtendS.o /opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/usr/lib/crtn.o
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: error: cmTC_ce8d4 uses VFP register arguments, CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o does not
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: failed to merge target specific data of file CMakeFiles/cmTC_ce8d4.dir/CMakeCXXCompilerABI.cpp.o
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_ce8d4.dir/build.make:99: cmTC_ce8d4] Error 1
make[1]: Leaving directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
make: *** [Makefile:127: cmTC_ce8d4/fast] Error 2




Determining if the CXX compiler works failed with the following output:
Change Dir: /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp

Run Build Command(s):/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make -f Makefile cmTC_73f94/fast && /opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/make  -f CMakeFiles/cmTC_73f94.dir/build.make CMakeFiles/cmTC_73f94.dir/build
make[1]: Entering directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi    -o CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o -c /tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
Linking CXX executable cmTC_73f94
/usr/local/bin/cmake -E cmake_link_script CMakeFiles/cmTC_73f94.dir/link.txt --verbose=1
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot=/opt/b2qt/3.1.6/sysroots/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o -o cmTC_73f94 
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: error: cmTC_73f94 uses VFP register arguments, CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o does not
/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld: failed to merge target specific data of file CMakeFiles/cmTC_73f94.dir/testCXXCompiler.cxx.o
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_73f94.dir/build.make:99: cmTC_73f94] Error 1
make[1]: Leaving directory '/tmp/QtCreator-lfnVzY/qtc-cmake-TEloPtbV/CMakeFiles/CMakeTmp'
make: *** [Makefile:127: cmTC_73f94/fast] Error 2

Diracsbracket

@ak_07 said in CMake Errors while trying to cross compile for RPi 3B+ using Qt Creator:

/opt/b2qt/3.1.6/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++

Can you compile a simple hello world test from the command line using the cross-compiler directly (which you also installed under sysroots which confused me at first) and run it on the target?