とあるBSP(yocto)でsdkを構築し、サンプルソフト(helloworld)をクロスコンパイルしようとしたところ、CMakeエラーが出ました。

・HostPCの再起動
・/opt/poky/2.5.2/の削除と再度shの実行
・helloworldのbuildフォルダ削除

を繰り返しましたが、改善されませんでした。

本件に関して、何か知見がございましたらご教授いただけないでしょうか？

＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃
■構築手順
local.confにSDKMACHINE ?= "x86_64"を追記
bitbake core-image-weston-sdk -c populate_sdk
sh ./poky-glibc-x86_64-core-image-weston-sdk-aarch64-toolchain-*.sh
HostPC再起動

■hello world
sdk
|- helloworld
|- CMakeLists.txt
|- hello.cpp
|- hello.hpp
|- main.cpp

---------------------------------------------------------------------

CMakeLists.txt
# CMake Version
cmake_minimum_required(VERSION 2.8)
# Project name & Language
project(helloworld CXX)
# source file & generated file
add_executable(a.out main.cpp hello.cpp)

hello.cpp
#include <iostream>
#include "hello.hpp"

void hello() {
std::cout << "Hello!" << std::endl;
}

hello.hpp
#ifndef HELLO_H
#define HELLO_H

void hello();

#endif

main.cpp
#include "hello.hpp"

int main() {
hello();
}

■helloworldのbuild
source /opt/poky/2.5.2/environment-setup-aarch64-poky-linux
export LDFLAGS=””

cd sdk/helloworld
mkdir build
cd build
cmake ..
make # cmakeでエラーのため実施無

■CMakeエラー内容
$ cmake ..
-- The CXX compiler identification is GNU 7.3.0
-- Check for working CXX compiler: /opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++
-- Check for working CXX compiler: /opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++ -- broken
CMake Error at /opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/share/cmake-3.10/Modules/CMakeTestCXXCompiler.cmake:45 (message):
The C++ compiler

"/opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++"

is not able to compile a simple test program.

It fails with the following output:

Change Dir: /home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_fcfa6/fast"
/usr/bin/make -f CMakeFiles/cmTC_fcfa6.dir/build.make CMakeFiles/cmTC_fcfa6.dir/build
make[1]: Entering directory '/home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_fcfa6.dir/testCXXCompiler.cxx.o
/opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++ -march=armv8-a -mtune=cortex-a57.cortex-a53 --sysroot=/opt/poky/2.5.2/sysroots/aarch64-poky-linux -O2 -pipe -g -feliminate-unused-debug-types -o CMakeFiles/cmTC_fcfa6.dir/testCXXCompiler.cxx.o -c /home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
Linking CXX executable cmTC_fcfa6
/opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_fcfa6.dir/link.txt --verbose=1
/opt/poky/2.5.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++ -march=armv8-a -mtune=cortex-a57.cortex-a53 --sysroot=/opt/poky/2.5.2/sysroots/aarch64-poky-linux -O2 -pipe -g -feliminate-unused-debug-types ”” -rdynamic CMakeFiles/cmTC_fcfa6.dir/testCXXCompiler.cxx.o -o cmTC_fcfa6
aarch64-poky-linux-g++: error: ””: No such file or directory
CMakeFiles/cmTC_fcfa6.dir/build.make:97: recipe for target 'cmTC_fcfa6' failed
make[1]: *** [cmTC_fcfa6] Error 1
make[1]: Leaving directory '/home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_fcfa6/fast' failed
make: *** [cmTC_fcfa6/fast] Error 2

CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:4 (project)

-- Configuring incomplete, errors occurred!
See also "/home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeOutput.log".
See also "/home/tcu/yocto-sample/sdk/helloworld/build/CMakeFiles/CMakeErr