Question

CLion网站称他们支持“libc ++”，但没有关于如何设置CLlion以使用libc ++的信息。我正在使用Ubuntu 16并下载了libc ++源码并构建它。所以我想使用这个特定的版本。

这是我到目前为止所尝试的内容：

所以我现在有了libc ++二进制文件。然后我创建了简单的hello world项目并更改了它的CMakeLists.txt以使用我的自定义libc ++。但是，当我尝试运行该项目时，我收到错误：

/home/shitals/CLionProjects/JsonTest/cmake-build-debug/JsonTest: error while loading shared libraries: libc++.so.1: cannot open shared object file: No such file or directory

这是我的项目cmake强制使用我的自定义libc ++。

cmake_minimum_required(VERSION 3.8)
project(JsonTest)

set(CMAKE_CXX_STANDARD 14)

#libcxx which we will use with specific version of clang
SET(LIBCXX_INC_PATH /home/shitals/mylibc++/include/c++/v1)
SET(LIBCXX_LIB_PATH /home/shitals/mylibc++/lib)

set(CMAKE_C_COMPILER clang-3.9)
set(CMAKE_CXX_COMPILER clang++-3.9)

set(CMAKE_CXX_FLAGS "\
                -std=c++14 -ggdb -Wall -Wextra -Wstrict-aliasing -Wunreachable-code -Wcast-qual -Wctor-dtor-privacy \
                -Wdisabled-optimization -Wformat=2 -Winit-self -Wmissing-include-dirs -Wswitch-default \
                -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wstrict-overflow=5 -Wswitch-default -Wundef \
                -Wno-variadic-macros -Wno-parentheses -Wno-unused-function -Wno-unused -Wno-documentation -fdiagnostics-show-option -ferror-limit=10 \
                -pthread ${CMAKE_CXX_FLAGS}")

set(CMAKE_CXX_FLAGS "\
                    -nostdinc++ -isystem ${LIBCXX_INC_PATH} \
                    -D__CLANG__ ${CMAKE_CXX_FLAGS}")

set(CMAKE_EXE_LINKER_FLAGS "\
                    ${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++ -lc++abi -lm -lc -lgcc_s -lgcc -ldl \
                    -L ${LIBCXX_LIB_PATH}")

set(SOURCE_FILES main.cpp)
add_executable(JsonTest ${SOURCE_FILES})

我编译的libc ++二进制文件确实有libc ++。so.1文件。

Answer 1

好的......所以在项目根目录下的CMakeLists.txt下面似乎有效：

cmake_minimum_required(VERSION 3.8)
project(JsonTest)

set(CMAKE_CXX_STANDARD 14)

#libcxx which we will use with specific version of clang
SET(LIBCXX_INC_PATH /home/shitals/GitHubSrc/AirSim/llvm-build/output/include/c++/v1)
SET(LIBCXX_LIB_PATH /home/shitals/GitHubSrc/AirSim/llvm-build/output/lib)

set(CMAKE_C_COMPILER clang-3.9)
set(CMAKE_CXX_COMPILER clang++-3.9)

set(CMAKE_CXX_FLAGS "\
                -std=c++14 -ggdb -Wall -Wextra -Wstrict-aliasing -Wunreachable-code -Wcast-qual -Wctor-dtor-privacy \
                -Wdisabled-optimization -Wformat=2 -Winit-self -Wmissing-include-dirs -Wswitch-default \
                -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wstrict-overflow=5 -Wswitch-default -Wundef \
                -Wno-variadic-macros -Wno-parentheses -Wno-unused-function -Wno-unused -Wno-documentation -fdiagnostics-show-option -ferror-limit=10 \
                -pthread ${CMAKE_CXX_FLAGS}")

set(CMAKE_CXX_FLAGS "\
                    -nostdinc++ -isystem ${LIBCXX_INC_PATH} \
                    -D__CLANG__ ${CMAKE_CXX_FLAGS}")

set(CMAKE_EXE_LINKER_FLAGS "\
                    ${CMAKE_EXE_LINKER_FLAGS} -v -nodefaultlibs -lc++ -lc++abi -lm -lc -lgcc_s -lgcc -ldl \
                    -L ${LIBCXX_LIB_PATH}")

LINK_DIRECTORIES(${LIBCXX_LIB_PATH})

set(SOURCE_FILES main.cpp)
add_executable(JsonTest ${SOURCE_FILES})
TARGET_LINK_LIBRARIES(JsonTest c++ c++abi)

如何使用自定义libc ++和clang设置CLion IDE？

1 个答案: