CLion Create standalone exe
Edit CMakeLists.txt:
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libstdc++ -static-libgcc")
After this CMakeLists.txt shoud look like this:
cmake_minimum_required(VERSION 3.9)
project(MyProject)
set(CMAKE_CXX_STANDARD 11) # 11 -> 23?
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libstdc++ -static-libgcc")
set(SOURCE_FILES main.cpp)
add_executable(MyProject${SOURCE_FILES})
Reload changes in CMakeLists.txt
Run -> Clean
Run -> Build
Now .exe file is standalone
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To compile C++23 code, including the import std; module, in CLion 2025.03, you need to ensure
your environment and project settings are configured correctly.
Compiler Support:
Ensure you are using a C++ compiler that supports C++23 and its modules feature. For
example, GCC provides experimental C++23 support. You may need a recent version of GCC (e.g.,
GCC 14 or later) to fully leverage C++23 modules.
Verify your CLion toolchain is configured to use this compiler: Go to Settings | Build,
Execution, Deployment | Toolchains and check the C++ Compiler path.
CMakeLists.txt Configuration:
Open your CMakeLists.txt file in CLion.
Set the C++ standard to C++23 by adding the following line:
Code
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
For modules, you might need to enable specific compiler flags or features depending on your
compiler. For GCC, you would typically add something like:
Code
target_compile_features(YourTargetName PRIVATE cxx_std_23)
And potentially other flags for module support if required by your specific compiler version.
Using import std;:
In your C++ source files, you can then use import std; at the top of the file to import the
standard library as a module.
Ensure that your project's build system (CMake) is configured to correctly build and link
these standard library modules. This often involves specific compiler flags or settings to enable
module compilation and usage.
Important Considerations:
Experimental Nature:
C++23 module support, especially for import std;, might still be considered experimental in
some compilers. You may encounter issues or need to use specific compiler versions or flags to get
it working reliably.
Compiler-Specific Flags:
The exact flags or settings required to enable C++23 modules can vary between compilers (e.g.,
GCC, Clang, MSVC). Consult your compiler's documentation for the most up-to-date information
on enabling C++23 modules.
CLion's C++20 Module Support:
CLion has built-in support for C++20 modules, which can be a good starting point. You can
create C++ Module Interface Units directly from the project tree in CLion using New | C++ Module
Interface Unit. While this is for C++20, the general workflow for modules will be similar for
C++23.
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AI Model
CLion 2025.03 Compile C++23 std module
To compile the C++23 standard library module (import std;) in CLion 2025.03, you must use a
compatible compiler and CMake version, then configure your CMakeLists.txt file with the correct
settings.
Prerequisites
Use a compatible compiler: Your compiler must have support for C++23 modules.
MSVC: Visual Studio 2022 v17.9 or later.
GCC: Version 14 or later.
Clang: Version 16 or later.
Use CMake 3.30 or newer: As of mid-2024, support for import std; was an experimental feature
in CMake, but it has since been finalized. If you are using a version of CMake that does not yet
bundle with CLion, you may need to install a newer version separately and specify the path to it in
your CLion settings.
Use CLion 2024.2 or newer: This version includes the necessary support for C++23 modules
and for working with the newer CMake settings.
Step 1: Configure your toolchain
First, ensure that CLion is using a supported compiler.
Open CLion Settings (Ctrl+Alt+S on Windows/Linux or Cmd+, on macOS).
Navigate to Build, Execution, Deployment | Toolchains.
Ensure your active toolchain uses a compatible compiler (MSVC, GCC, or Clang).
Step 2: Update your CMakeLists.txt
Next, you will set the required C++ standard and enable the std module in your project's
CMakeLists.txt file.
Open your project's CMakeLists.txt file.
Before your project() call, enable the experimental import std feature.
Note: This UUID ("0e5b6991-d74f-4b3d-a41c-cf096e0b2508") for CMake's std module support
may be removed in future CMake versions after the feature is fully integrated, but it is necessary for
now.
cmake
# For older CMake versions:
set(CMAKE_EXPERIMENTAL_CXX_IMPORT_STD
"0e5b6991-d74f-4b3d-a41c-cf096e0b2508")
project(MyProject LANGUAGES CXX)
Use code with caution.
After the project() call, set the C++ standard to 23 and require it.
cmake
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED YES)
Use code with caution.
Tell CMake to explicitly use the std module. This must be set before you declare your executable or
library targets.
cmake
set(CMAKE_CXX_MODULE_STD 1)
# Example for an executable
add_executable(MyExecutable main.cpp)
Use code with caution.
Step 3: Write your C++23 code
Now you can use import std; in your C++ source files.
In your main.cpp or another source file, replace #include <iostream> with import std;.
cpp
import std;
int main() {
std::cout << "Hello, C++23 Modules!\n";
return 0;
}
Use code with caution.
Step 4: Reload and build
Save your CMakeLists.txt file. CLion will prompt you to reload your CMake project to apply the
new settings. After reloading, you can build and run your project. CLion will invoke the compiler
with the correct flags to handle the C++23 standard library module
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
CLion 2025.03 Compile C++23 std module
To compile the C++23 standard library module (
import std;) in CLion 2025.03, you must use a compatible compiler and CMake version, then
configure your CMakeLists.txt file with the correct settings.
Prerequisites
Use a compatible compiler: Your compiler must have support for C++23 modules.
MSVC: Visual Studio 2022 v17.9 or later.
GCC: Version 14 or later.
Clang: Version 16 or later.
Use CMake 3.30 or newer: As of mid-2024, support for import std; was an experimental feature
in CMake, but it has since been finalized. If you are using a version of CMake that does not yet
bundle with CLion, you may need to install a newer version separately and specify the path to it in
your CLion settings.
Use CLion 2024.2 or newer: This version includes the necessary support for C++23 modules
and for working with the newer CMake settings.
Step 1: Configure your toolchain
First, ensure that CLion is using a supported compiler.
Open CLion Settings (Ctrl+Alt+S on Windows/Linux or Cmd+, on macOS).
Navigate to Build, Execution, Deployment | Toolchains.
Ensure your active toolchain uses a compatible compiler (MSVC, GCC, or Clang).
Step 2: Update your CMakeLists.txt
Next, you will set the required C++ standard and enable the std module in your project's
CMakeLists.txt file.
Open your project's CMakeLists.txt file.
Before your project() call, enable the experimental import std feature.
Note: This UUID ("0e5b6991-d74f-4b3d-a41c-cf096e0b2508") for CMake's std module support
may be removed in future CMake versions after the feature is fully integrated, but it is necessary for
now.
cmake
# For older CMake versions:
set(CMAKE_EXPERIMENTAL_CXX_IMPORT_STD
"0e5b6991-d74f-4b3d-a41c-cf096e0b2508")
project(MyProject LANGUAGES CXX)
Use code with caution.
After the project() call, set the C++ standard to 23 and require it.
cmake
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED YES)
Use code with caution.
Tell CMake to explicitly use the std module. This must be set before you declare your executable or
library targets.
cmake
set(CMAKE_CXX_MODULE_STD 1)
# Example for an executable
add_executable(MyExecutable main.cpp)
Use code with caution.
Step 3: Write your C++23 code
Now you can use import std; in your C++ source files.
In your main.cpp or another source file, replace #include <iostream> with import std;.
cpp
import std;
int main() {
std::cout << "Hello, C++23 Modules!\n";
return 0;
}
Use code with caution.
Step 4: Reload and build
Save your CMakeLists.txt file. CLion will prompt you to reload your CMake project to apply the
new settings. After reloading, you can build and run your project. CLion will invoke the compiler
with the correct flags to handle the C++23 standard library module