如何解决问：柯南错误：不正确的'clang'，不是我使用选项“ -s build_type = Debug”时CMake检测到的'GNU'
我试图在我的项目中由柯南管理gtest软件包。 conanfile.txt如下：
[requires]
gtest/1.10.0
[generators]
cmake
我的CMakeLists.txt如下：
cmake_minimum_required(VERSION 3.5)
project(TinyWebServer)
include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
conan_basic_setup()
set(CMAKE_CXX_STANDARD 11)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads required)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
add_compile_options(-Wthread-safety )
endif()
add_compile_options(
# -DVALGRIND
-DCHECK_PTHREAD_RETURN_VALUE
-D_FILE_OFFSET_BITS=64
-Wall
-Wno-unused-parameter
-Woverloaded-virtual
-Wpointer-arith
-Wwrite-strings
)
enable_testing()
add_subdirectory(Logger)
add_subdirectory(Tools)
add_subdirectory(Pools)
add_subdirectory(Http)
add_subdirectory(Timer)
add_subdirectory(Net)
add_subdirectory(Test)
add_executable(${PROJECT_NAME} main.cc Config.cc)
target_link_libraries(${PROJECT_NAME}
Threads::Threads
Log::lib
Tools::lib
Pools::lib
Http::lib
Net::lib
Timer::lib
)
install(TARGETS ${PROJECT_NAME} DESTINATION ${CMAKE_SOURCE_DIR})
当我使用下面显示的命令来构建我的项目时，一切顺利。
mkdir -p build/
cd build/
conan install .. --build missing -s compiler=clang -s compiler.version=3.8 -s compiler.libcxx=libstdc++11 -s build_type=Release
cmake .. -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Release
make install -j4
但是当我将build_type选项从Release切换到Debug时，就像：
conan install .. --build missing -s compiler=clang -s compiler.version=3.8 -s compiler.libcxx=libstdc++11 -s build_type=Debug
我收到一些错误消息：
phoenix@phoenix-virtual-machine:~/MyProject/MyTinyWebServer/build$ conan install .. --build missing -s compiler=clang -s compiler.version=3.8 -s compiler.libcxx=libstdc++11 -s build_type=Debug
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.libcxx=libstdc++11
compiler.version=3.8
os=Linux
os_build=Linux
[options]
[build_requires]
[env]
gtest/1.10.0: WARN: Package is corrupted,removing folder: /home/phoenix/.conan/data/gtest/1.10.0/_/_/package/d5608ac34c43db836b618b9cfd33cb77c7dec959
conanfile.txt: Installing package
Requirements
gtest/1.10.0 from 'conan-center' - Cache
Packages
gtest/1.10.0:d5608ac34c43db836b618b9cfd33cb77c7dec959 - Build
Installing (downloading,building) binaries...
gtest/1.10.0: WARN: Build folder is dirty,removing it: /home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959
gtest/1.10.0: copying sources to build folder
gtest/1.10.0: Building your package in /home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959
gtest/1.10.0: Generator cmake created conanbuildinfo.cmake
gtest/1.10.0: Calling build()
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: called by CMake conan helper
-- Conan: called inside local cache
-- Conan: Adjusting output directories
-- Conan: Using cmake global configuration
-- Conan: Adjusting default RPATHs Conan policies
-- Conan: Adjusting language standard
-- Conan: Adjusting fPIC flag (ON)
CMake Error at conanbuildinfo.cmake:578 (message):
Incorrect 'clang',is not the one detected by CMake: 'GNU'
Call Stack (most recent call first):
conanbuildinfo.cmake:141 (conan_check_compiler)
CMakeLists.txt:5 (conan_basic_setup)
-- Configuring incomplete,errors occurred!
See also "/home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959/CMakeFiles/CMakeOutput.log".
gtest/1.10.0:
gtest/1.10.0: ERROR: Package 'd5608ac34c43db836b618b9cfd33cb77c7dec959' build Failed
gtest/1.10.0: WARN: Build folder /home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959
ERROR: gtest/1.10.0: Error in build() method,line 59
cmake = self._configure_cmake()
while calling '_configure_cmake',line 53
cmake.configure()
ConanException: Error 1 while executing cd '/home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Debug" -DCONAN_IN_LOCAL_CACHE="ON" -DCONAN_COMPILER="clang" -DCONAN_COMPILER_VERSION="3.8" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++11" -DBUILD_SHARED_LIBS="OFF" -DCMAKE_INSTALL_PREFIX="/home/phoenix/.conan/data/gtest/1.10.0/_/_/package/d5608ac34c43db836b618b9cfd33cb77c7dec959" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATaroOTDIR="share" -DCONAN_CMAKE_POSITION_INDEPENDENT_CODE="ON" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -DCUSTOM_DEBUG_POSTFIX="d" -DBUILD_GMOCK="True" -DGTEST_NO_MAIN="False" -Dgtest_hide_internal_symbols="False" -Wno-dev '/home/phoenix/.conan/data/gtest/1.10.0/_/_/build/d5608ac34c43db836b618b9cfd33cb77c7dec959'
那真的让我感到困惑。命令conan install .. --build missing -s compiler=clang -s compiler.version=3.8 -s compiler.libcxx=libstdc++11 -s build_type=Debug已将编译器指定为clang。但是从消息Incorrect 'clang',is not the one detected by CMake: 'GNU'看来，柯南好像检测到了gcc编译器。为什么会这样？如果要将项目构建为调试版本，该怎么办？
谢谢〜
解决方法
哦，我想我犯了一些错误。使用柯南安装gtest软件包和构建我的项目以调试版本是完全不同的两件事。因此，如果要将项目构建为调试版本，则应使用comand这样的代码：
conan install .. --build missing -s compiler=clang -s compiler.version=3.8 -s compiler.libcxx=libstdc++11 -s build_type=Release
cmake .. -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Debug
gtest的版本为Release并不能阻止我将项目编译为调试版本。 ?
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