Samuel Vinson wrote: > Because mingw includes header and library for directX (reverse engineering) > and not visual c++ where you must install directX SDk I think that's not the case. Mingw does have WMME header/lib, but it doesn't have DirectSound (DS) header/lib. PortAudio supports all kinds of audio SDK backends, including WMME and DS. In pjsip's PortAudio Makefile, it's easy to disable DS from the build process, hence Mingw target builds fine without DX SDK. But with VS, it's impossible to include/exclude DS with a configuration, so DS is always enabled. Hence it needs DX SDK. cheers, -benny > Samuel > > Klaus Darilion a ?crit : >> Didier Le Lann wrote: >> >>> Hi! >>> >>> To get dsound.lib, you just have to install directX SDK. >>> >> Hi Didier! >> >> Thanks for the answer, but the question was: why could I successfully >> build pjproject (with mingw) although directX SDK is NOT installed? >> >> regards >> klaus >> >> >>> Hope it helps >>> Regards >>> Didier