add autodetect audio driver capability to winmm

[Robert Shearman]

James Hawkins wrote:

>>This is only available in C99. We try to make Wine compile with as many
>>C compilers as possible, including gcc 2.95, which doesn't allow this
>>sort of thing.
>>    
>>
>
>What part of the code is only availabe in C99? I'll try to fix it so
>we can be compatible with other compilers.
>  
>
>>>    size = sizeof(buffer);
>>>-    if (!RegQueryValueExA(hKey, "Drivers", 0, &type, (LPVOID)buffer, &size)) {
>>>+    BOOL keyQueried = !RegQueryValueExA(hKey, "Drivers", 0, &type,
>>>
            ^^^^ - all variable declarations must be done at the very 
start of a block of code.

>>>+                                        (LPVOID)buffer, &size);
>>>
>>>      
>>>
>>This is only available in C99. We try to make Wine compile with as many
>>C compilers as possible, including gcc 2.95, which doesn't allow this
>>sort of thing.
>>    
>>

Rob