Standard C++ library is not found

已回答

Permanently deleted user

创建于 2018年03月10日 09:33

I have come into the situation where launching CLion with `LC_ALL=C LANG=en_US.UTF-8` doesn't work for this problem, so I'm rather seeking help here.

CLion cannot find the standard library of C++17 in src/constants.hpp, as shown: https://owo.whats-th.is/ed9ae8.png

The following is my CMakeLists.txt:

```cmake

cmake_minimum_required(VERSION 3.10)
project(name C CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

set(PROJECT_SOURCE_DIR src)
add_library(name STATIC ${PROJECT_SOURCE_DIR})
set_target_properties(name PROPERTIES LINKER_LANGUAGE CXX)
target_compile_options(name PUBLIC "-std=c++17 -Wall")
target_compile_features(name PUBLIC cxx_std_17)
target_include_directories(name PUBLIC ${PROJECT_SOURCE_DIR})

set(CPACK_PACKAGE_NAME "name")
set(CPACK_PACKAGE_VERSION "1.0.0")
set(CPACK_MONOLITHIC_INSTALL 1)

include(CPack)

```

I know for a fact it has been reloaded properly, it uses the bundled CMake and all other dependencies are present. It compiles fine with `cmake . && make`, even inside CLion with Run -> Build, but does not seem to find anything.

With the standard CLion directory structure, it doesn't work, either, so it is not the `src` directory's fault.

5 条评论

Anna Falevskaya

创建于 2018年03月11日 10:48

Hi! On my side #include <cstdlib> and #include <stdexcept> are not marked as not found.

Could you please create a new default "Hello, World!" project and check whether it works in it?

Also please provide some additional information: OS, CLion version, compiler which is used and its version.

Permanently deleted user

创建于 2018年03月16日 13:02

OS: Arch Linux (uname -a: Linux proximyst 4.15.8-1-ARCH #1 SMP PREEMPT Sat Mar 10 00:00:33 UTC 2018 x86_64 GNU/Linux)

Compilers & tools: gcc, g++, cmake, gnu make,

CLion help data (Launched using JetBrains Toolbox):

    CLion 2018.1 EAP
    Build #CL-181.4203.106, built on March 14, 2018
    CLion EAP User
    Expiration date: April 13, 2018
    JRE: 1.8.0_152-release-1136-b20 amd64
    JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
    Linux 4.15.8-1-ARCH

The default executable template from the New Project menu works nicely.

When I changed it up by moving main.cpp into src/ and used this CMake config, it also worked nicely:

cmake_minimum_required(VERSION 3.10)
project(hellocpp C CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

set(PROJECT_SOURCE_DIR src)
file(GLOB_RECURSE sources ${PROJECT_SOURCE_DIR}/*.c*)
add_executable(hellocpp ${sources})
set_target_properties(hellocpp PROPERTIES LINKER_LANGUAGE CXX)
target_compile_options(hellocpp PUBLIC -std=c++17 -Wall)
target_compile_features(hellocpp PUBLIC cxx_std_17)
target_include_directories(hellocpp PUBLIC ${PROJECT_SOURCE_DIR})

I therefore I cannot assume that you've fixed the issue and I'll rather just need to recreate my project and move files, and again be good to go.

Anna Falevskaya

创建于 2018年03月16日 14:52

If you manage to create a simple sample project with which the issue can be stably reproduced, please send it to clion-support at jetbrains.com.

Permanently deleted user

创建于 2018年03月30日 02:42

I have also met this problem. The CMakeLists.txt is as follows:

cmake_minimum_required(VERSION 3.9)
project(test)

set(CMAKE_CXX_STANDARD 11)

add_library(test library.h cmake-build-debug/library.h)

set_target_properties(test PROPERTIES LINKER_LANGUAGE CXX)

After adding the final statement, the external libraries were missing.

OS: macOS 10.13.3

CLion Version: 2017.3.4

Anna Falevskaya

创建于 2018年03月30日 16:36

@CC could you please send a sample project to clion-support at jetbrains.com?

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