Do you see this http://www.squeaksource.com/GStreamer.html?
2014-08-15 14:03 GMT+01:00 Annick Fron <l...@afceurope.com>: > Steph > > We had a Skype call yesterday with JB, and we made progress. > The problem is I have several libraries, and it was not easy to find > because they don’t export symbols and use pkg-config. > > See you in Cambridge > Annick > Le 15 août 2014 à 12:36, stepharo <steph...@free.fr> a écrit : > > Annick > > FFI can call a function but it needs to know where is your library. > > Stef > > On 13/8/14 15:46, Annick Fron wrote: > > I want to interface some pharo code with gstreamer. But gstreamer does not > come up with a dylib, it requires compilation flags for instance for a C > program. > The compile options are : > -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 > -I/usr/lib/i386-linux-gnu/glib-2.0/include -lgstreamer-1.0 -lgobject-2.0 > -lglib-2.0 > > so if I don’t know which module to use in FFI. If I put > /usr/lib/gstreamer-1.0 > I get an error « module not found ». > Since it is handled by pragmas it is very difficult to debug. > > Annick > Le 13 août 2014 à 13:11, Clément Bera <bera.clem...@gmail.com> a écrit : > > I don't understand, do you want to compile your library using FFI or do > you want to bind a library compiled your way with FFI ? > > If you want to compile your library using FFI, then use OSProcess to run > the compilation line you showed. > > If you want to bind a library compiled your way with FFI, the easiest > way is to compile the C files as a dylib with something like: > > *gcc -shared -m32 -Wall helloworld.c -o helloworld.dylib $(pkg-config > --cflags --libs gstreamer-1.0)* > > (replace .dylib by .so or .dll if you're on windows or on Mac). > Then you can bind the dynamic library generated with FFI. I am not sure > about the FFI syntax but with NativeBoost it would look like: > Integer>>fib4NB > <primitive: #primitiveNativeCall module: #NativeBoostPlugin error: > errorCode> > ^ self > nbCall: #( int functionToCall (int self) ) > module: '/Users/myName/Desktop/helloWorld.dylib' > > Regards, > > Clement > > > 2014-08-13 11:55 GMT+02:00 Annick Fron <i...@afceurope.com>: > >> Hi, >> >> I would like to compile a FFI program but the compiling implies compile >> flags like in the following : >> >> *gcc -Wall helloworld.c -o helloworld $(pkg-config --cflags --libs >> gstreamer-1.0)* >> >> *How do I do this with FFI ?* >> >> *Annick* >> > > > > >
