member to c struct gives c error: : field not found: Gamepad

[daansystems]

V version: V 0.4.10 a8a4507, press to see full `v doctor` output

V full version	V 0.4.10 5c65e58.a8a4507
OS	windows, Microsoft Windows 11 Pro 26100 64-bit
Processor	24 cpus, 64bit, little endian, AMD Ryzen 9 3900X 12-Core Processor
Memory	5.52GB/31.9GB
V executable	C:\v\v.exe
V last modified time	2025-04-01 12:26:20
V home dir	OK, value: C:\v
VMODULES	OK, value: C:\Users\info.vmodules
VTMP	OK, value: C:\Users\info\AppData\Local\Temp\v_0
Current working dir	OK, value: D:\vbug2
Git version	git version 2.42.0.windows.2
V git status	weekly.2025.13-40-ga8a45072-dirty
.git/config present	true
cc version	N/A
gcc version	N/A
clang version	clang version 17.0.1
msvc version	N/A
tcc version	tcc version 0.9.27 (x86_64 Windows)
tcc git status	thirdparty-windows-amd64 b425ac82
emcc version	N/A
glibc version	ldd (cygwin) 3.4.7

What did you do?
./v -g -o vdbg cmd/v && ./vdbg main.v && D:\vbug2\main.exe

module main

// With or without this include the error is the same.
// #include "@VMODROOT/xinput.h"
// #flag "@VMODROOT/XInput1_4.dll"

struct C.XINPUT_GAMEPAD {
	wButtons      u16
	bLeftTrigger  u8
	bRightTrigger u8
	sThumbLX      i16
	sThumbLY      i16
	sThumbRX      i16
	sThumbRY      i16
}

struct C.XINPUT_STATE {
	dwPacketNumber int
	Gamepad        C.XINPUT_GAMEPAD
}

fn C.XInputEnable(enable u32)
fn C.XInputGetState(index int, mut state C.XINPUT_STATE) int

pub fn enable(enable u32) {
	C.XInputEnable(enable)
}

pub fn get_state(index int) C.XINPUT_STATE {
	mut state := C.XINPUT_STATE{}
	if C.XInputGetState(index, mut state) == C.ERROR_SUCCESS {
		return state
	}
	panic('cannot get state')
}

fn main() {
	enable(1)
	state := get_state(0)
	eprintln('controller state: ${state}')
}

What did you see?

================== C compilation error (from tcc): ==============
cc: C:/Users/info/AppData/Local/Temp/v_0/main.01JQRN2S6C3NZHMX08FMJWWG7X.tmp.c:518: warning: WINVER redefined
cc: C:/Users/info/AppData/Local/Temp/v_0/main.01JQRN2S6C3NZHMX08FMJWWG7X.tmp.c:1763: error: field not found: Gamepad
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

What did you expect to see?

no c error

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