[PD-dev] Pd and Intel IA32 compiler

[Thomas Grill]

Hi,
it seems that the MSVC++ is the only compiler that wants the "extern struct"
specifier.....

so maybe, the definition should be changed to

#ifdef _MSC_VER
#define EXTERN_STRUCT extern struct
#else
#define EXTERN_STRUCT struct
#endif

greetings,
Thomas

> Changing the definition in m_pd.h seems to help (I don't get the warning
> any longer):
>
>     /* and depending on the compiler, hidden data structures are
>     declared differently: */
> #ifdef __GNUC__
> #define EXTERN_STRUCT struct
> #else
> #ifdef IA32 /* Intel IA32 compiler */
> #define EXTERN_STRUCT struct
> #else  /* non-GNU compiler */
> #define EXTERN_STRUCT extern struct
> #endif
> #endif
>
> It's also necessary to define "IA32" for the compiler to get the above
> code working... (maybe the compiler identifies itselfe by it's own but I
> couldn't find any hints)
>
> In the end it seems that this compiler reduces CPU usage a bit (on my P4
> with compiler options G7 and QaxW set). More tests have to show if it's
> worth the effort. I should probably recompile all libraries as well...
>
> I could upload a version of Pd0.35 compiled with this compiler in case
> someone is interested or is willing to test the amount of optimization
> one gets in real 'on-stage' situations.
>
>
> Olaf
>
>
>
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