vcpkg install fails when I specify the gcc compiler

[iGwkang]

export CC="/opt/gcc-arm-10.2-2020.11-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-gcc"
export CXX="/opt/gcc-arm-10.2-2020.11-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-g++"

vcpkg install --triplet arm64-linux openssl

output

Computing installation plan...
The following packages will be built and installed:
    openssl:[email protected]#1
  * vcpkg-cmake:x64-linux@2024-04-23
  * vcpkg-cmake-config:x64-linux@2024-05-23
  * vcpkg-cmake-get-vars:x64-linux@2024-09-22
Additional packages (*) will be modified to complete this operation.
Detecting compiler hash for triplet x64-linux...
Compiler found: /opt/gcc-arm-10.2-2020.11-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-g++
Detecting compiler hash for triplet arm64-linux...
error: while detecting compiler information:
The log file content at "/opt/vcpkg/buildtrees/detect_compiler/stdout-arm64-linux.log" is:
-- Configuring arm64-linux-rel
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:127 (message):
    Command failed: /opt/vcpkg/downloads/tools/cmake-3.30.1-linux/cmake-3.30.1-linux-x86_64/bin/cmake /opt/vcpkg/scripts/detect_compiler -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/opt/vcpkg/packages/detect_compiler_arm64-linux -DCMAKE_MAKE_PROGRAM=/opt/vcpkg/downloads/tools/ninja/1.10.2-linux/ninja -DCMAKE_SYSTEM_NAME=Linux -DBUILD_SHARED_LIBS=OFF -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=/opt/vcpkg/scripts/toolchains/linux.cmake -DVCPKG_TARGET_TRIPLET=arm64-linux -DVCPKG_SET_CHARSET_FLAG=ON -DVCPKG_PLATFORM_TOOLSET=external -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY=ON -DCMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP=TRUE -DCMAKE_VERBOSE_MAKEFILE=ON -DVCPKG_APPLOCAL_DEPS=OFF -DCMAKE_TOOLCHAIN_FILE=/opt/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_ERROR_ON_ABSOLUTE_INSTALL_DESTINATION=ON -DVCPKG_CXX_FLAGS= -DVCPKG_CXX_FLAGS_RELEASE= -DVCPKG_CXX_FLAGS_DEBUG= -DVCPKG_C_FLAGS= -DVCPKG_C_FLAGS_RELEASE= -DVCPKG_C_FLAGS_DEBUG= -DVCPKG_CRT_LINKAGE=dynamic -DVCPKG_LINKER_FLAGS= -DVCPKG_LINKER_FLAGS_RELEASE= -DVCPKG_LINKER_FLAGS_DEBUG= -DVCPKG_TARGET_ARCHITECTURE=arm64 -DCMAKE_INSTALL_LIBDIR:STRING=lib -DCMAKE_INSTALL_BINDIR:STRING=bin -D_VCPKG_ROOT_DIR=/opt/vcpkg -DZ_VCPKG_ROOT_DIR=/opt/vcpkg -D_VCPKG_INSTALLED_DIR=/opt/vcpkg/installed -DVCPKG_MANIFEST_INSTALL=OFF
    Working Directory: /opt/vcpkg/buildtrees/detect_compiler/arm64-linux-rel
    Error code: 1
    See logs for more information:
      /opt/vcpkg/buildtrees/detect_compiler/config-arm64-linux-rel-CMakeCache.txt.log
      /opt/vcpkg/buildtrees/detect_compiler/config-arm64-linux-rel-out.log
      /opt/vcpkg/buildtrees/detect_compiler/config-arm64-linux-rel-err.log

Call Stack (most recent call first):
  scripts/cmake/vcpkg_configure_cmake.cmake:344 (vcpkg_execute_required_process)
  scripts/detect_compiler/portfile.cmake:18 (vcpkg_configure_cmake)
  scripts/ports.cmake:192 (include)


error: vcpkg was unable to detect the active compiler's information. See above for the CMake failure output.

/opt/vcpkg/buildtrees/detect_compiler/config-arm64-linux-rel-err.log

  The CMAKE_C_COMPILER:

    aarch64-linux-gnu-gcc

  is not a full path and was not found in the PATH.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.