unexpected token ILLEGAL when compiling <sys/socket.h> with wasi target

[charconstpointer]

I was playing around with https://github.com/alphahorizonio/unisockets and I've noticed some issues when compiling its code for wasi, narrowed it down to the snippet below and it seems like it's the issue with <sys/socket.h> and underlying wasi implementation

package main

/*
#include <sys/socket.h>
*/
import "C"

const (
	SHUT_RDWR = int32(C.SHUT_RDWR)
)

func main() {
}

Compiled with tinygo build -target wasi main.go
Output tinygo/lib/wasi-libc/sysroot/include/__header_sys_socket.h:12:35: unexpected token ILLEGAL, expected end of expression

---

Env

• Tinygo version: 0.26.0
• go version go1.19.4 linux/amd64

[aykevl]

I've implemented support for | in #3379. It doesn't fully fix this bug though, the new error is the following:

$ tinygo run -target=wasi ./tmp/issue3369.go
# command-line-arguments
lib/wasi-libc/sysroot/include/__header_sys_socket.h:12:20: undeclared name: C.SHUT_RD
lib/wasi-libc/sysroot/include/__header_sys_socket.h:12:30: undeclared name: C.SHUT_WR

Not sure what's going on there.