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Post #23978 16
Complete working guide for C++23 import std; with GCC 15.1 and CMake 4.1

After days of struggling with "unknown compiled module interface" errors, I finally got import std; working and documented the complete solution.



The key missing piece that most guides don't mention: CXX_MODULE_STD 1



Complete guide: https://github.com/JRASoftware/cpp23-import-std-guide



Hope this saves others the same pain!

https://redd.it/1nxz7x9
@r_cpp
GitHub GitHub - JRASoftware/cpp23-import-std-guide: Complete guide for C++23 import std; with GCC 15.1 and CMake 4.1. Includes the critical… Complete guide for C++23 import std; with GCC 15.1 and CMake 4.1. Includes the critical CXX_MODULE_STD property that most guides miss. - JRASoftware/cpp23-import-std-guide
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