On Tue, 2011-10-18 at 14:48 +0800, Lu Guanqun wrote: > CC libpulsedsp_la-padsp.lo > utils/padsp.c:1524:5: warning: no previous prototype for '__open_2' [-Wmissing-prototypes] > utils/padsp.c:2560:5: warning: no previous prototype for '__open64_2' [-Wmissing-prototypes] > --- > src/utils/padsp.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/src/utils/padsp.c b/src/utils/padsp.c > index a8bc8d2..414ebe4 100644 > --- a/src/utils/padsp.c > +++ b/src/utils/padsp.c > @@ -64,6 +64,9 @@ > #undef open > #undef open64 > > +int __open_2(const char *filename, int flags); > +int __open64_2(const char *filename, int flags); > + These two are defined a little later from where you've added them. Is this really present in master? Cheers, Arun