Standard C++ library is not found

Answered

Permanently deleted user

Created March 10, 2018 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 comments

Anna Falevskaya

Created March 11, 2018 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

Created March 16, 2018 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

Created March 16, 2018 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

Created March 30, 2018 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

Created March 30, 2018 16:36

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

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