asm help

[flyker]

Can anybody help me write the function for Linux :

__declspec(naked) BOOL WINAPI 
_InitCommonControlsEx(INITCOMMONCONTROLSEX* lpInitCtrls)
{
    if(!dwLPA_InitCommonControlsEx)
    {
        __asm mov eax, 0
        __asm ret 4
    }
    else
    {
        __asm jmp dwLPA_InitCommonControlsEx
    }
}

May be :
__declspec(naked) BOOL WINAPI 
_InitCommonControlsEx(WINGS_INITCOMMONCONTROLSEX* lpInitCtrls)
{
    if(!dwLPA_InitCommonControlsEx)
    {
    __asm__ __volatile__("movl 0, %eax");
    __asm__ __volatile__("ret");
    }
    else
    {
    __asm__ __volatile__("jmp %0" : : "q"(dwLPA_InitCommonControlsEx));
    }
}