Sorry for the delay. Attached patch has been tested on a dual G4 w/ latest debian source yesterday and on a single CPU w/ git snapshot 1week ago.
jackd runs stable on both. Thanks Robin for the gcc trick:) Regards, Benoît
--- a/common/jack/systemdeps.h 2014-03-14 19:19:00.000000000 +0100 +++ b/common/jack/systemdeps.h 2014-04-07 12:21:10.933776299 +0200 @@ -120,9 +120,9 @@ #endif /* __APPLE__ || __linux__ || __sun__ || sun */ -#if defined(__arm__) +#if defined(__arm__) || defined(__powerpc__) #undef POST_PACKED_STRUCTURE #define POST_PACKED_STRUCTURE -#endif /* __arm__ */ +#endif /* __arm__ || __powerpc__ */ #endif /* __jack_systemdeps_h__ */