ClangSharpPInvokeGenerator annoys me if it can't find to path to stddef.h

[DeafMan1983]

Hello everyone,

I have big problem. It seems not working if I want generate to C#

 ClangSharpPInvokeGenerator --file /usr/include/SDL2/SDL.h --traverse /usr/include/SDL2/SDL.h -n SDL2Interop --methodClassName SDL2 --libraryPath /usr/lib/x86_64-linux-gnu -o ./SDL2Interop.cs
Diagnostics for '/usr/include/SDL2/SDL.h':
    /usr/include/x86_64-linux-gnu/sys/types.h:144:10: fatal error: 'stddef.h' file not found
Skipping '/usr/include/SDL2/SDL.h' due to one or more errors listed above.

I already installed which version if I use Ubuntu 22.04.3 with Clang-14 or Clang-15
locale stddef.h
Result:

/opt/rocm-5.5.3/llvm/lib/clang/16.0.0/include/stddef.h
/usr/include/linux/stddef.h
/usr/include/x86_64-linux-musl/stddef.h
/usr/lib/gcc/x86_64-linux-gnu/11/include/stddef.h
/usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h
/usr/lib/llvm-15/lib/clang/15.0.7/include/stddef.h
/usr/src/amdgpu-6.2.4-1637781.22.04/include/kcl/kcl_stddef.h
/usr/src/linux-hwe-6.2-headers-6.2.0-31/include/linux/stddef.h
/usr/src/linux-hwe-6.2-headers-6.2.0-31/include/uapi/linux/stddef.h

Amdgpu development kit requires for rocm dkms compilation with new kernel 6.2 that is why I shouldn't remove it. It is very important for rocm dkms

How do I know if ClangSharpPInvokeGenerator can't find where does stddef.h install on Ubuntu 22.04.

// EDIT:
I have tried - no success :( I am very disappointed now @tannergooding I have tried to use -I or -std.

I don't want wait for nothing.... :(

Thanks!

[tannergooding]

Clang is ultimately a compiler and it requires various standard paths to be passed in that might otherwise get specified by higher level tooling, such as cmake. It doesn't bake such assumptions in directly.

On Linux, you likely want to specify and pass in something such as:

--include-directory
/usr/lib/gcc/x86_64-linux-gnu/9/include
/usr/include/x86_64-linux-gnu
/usr/include

(adjusting paths/versions as appropriate)