alt Hacker News> Can't be done. The libc is legacy, it can't be changed without breaking everything. It's also mandatory on every operating system other than Linux.
Windows explicitly does not want you to link the system libc. You are expected to bring your own, and doing so means your process has multiple libc's loaded into its address space.
And if you choose to build a binary that doesn't need a libc, you won't be bringing one.
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> You are expected to bring your own, and doing so means your process has multiple libc's loaded into its address space.
That only massively compounds the problem.
> And if you choose to build a binary that doesn't need a libc, you won't be bringing one.
NT system calls are not stable. You still need to link against ntdll.dll at the very least, like a forced Linux vDSO.
> Windows explicitly does not want you to link the system libc
This is categorically false; UCRT[1] is a thing. The 'U' stands for universal. Unlike Linux, Windows allows developers to choose their ABI boundary and also ship that boundary if they desire, or use the 'system' one and ask older platforms to install redistributables or Windows update packages. There's the old and new C runtimes in MSVCRT.DLL and UCRTBASE.DLL, the C++ runtime in VCRUNTIME140.DLL, Win32 in KERNEL32.DLL, USER32.DLL and more, and then the stable-ish kernel interfaces in NTDLL.DLL, in order of 'closeness to the kernel'.
And also, 'libc' is a UNIXism; on Windows the term is CRT, for 'C runtime'.
[1]: https://learn.microsoft.com/en-gb/cpp/porting/upgrade-your-c...