It's possible that libvlc is loading a config file or dynamically loading some other DLLs. You might have to compile a debug version of the library and step through it with gdb, or just spend some time reading the source code of libvlc_new.
--David On Wed, Jul 20, 2016 at 7:01 PM, eddie <[email protected]> wrote: > Hi to all the MSYS2 community, > > At first MSYS2 is the solution i have search for years for making Windows > version from my programs, passing trough code-block-mingw32, mingw alone, > cygwin,... > > --- > > But i come to my problem: > > I can compile and launching my program mmp-2.1 which is an update from the > Micro Music Player which I have build for Linux, the update will soon > release in the hope their will be a Windows version too. > > :: extract from my Makefile > > CXXFLAGS = -mwindows -O2 -std=c++11 # we can try -static-libstdc++ > -static-libgcc -lstdc++ # but -lmingw32 make fail the build > > LDFLAGS = `pkg-config --cflags gtk+-3.0` `pkg-config --cflags libvlc` > > LDFLAGS = `pkg-config --libs gtk+-3.0` `pkg-config --libs libvlc` > > > > All success but when i come to distributing i heart to a wall: > > I have make a folder outside from the MSYS2 installation, then copy all the > dependencies, and finally copy the required *.dll files into my ./bin folder > like this > > :: > > ldd ./bin/mmp | grep mingw64 | cp $(gawk '{print $3}') > /path/to/test/dir/bin > > And when i launch the program all works fine except the initialization from > libvlc which always return NULL ??? > > :: > > int main (int argc, char *argv[]) { > > // ... > > libvlc_instance_t * libvlc_inst = libvlc_new (0, NULL) ; > > if (libvlc_inst == NULL) { > // The instance is always equal to NULL in the /path/to/test/dir/bin > // But not in the MSYS2 home ??? > fprintf(stderr,"The unborn is killed in the winbee !\n") ; > exit(EXIT_FAILURE) ; > } > > // ... > > return 0 ; > > } > > Thanks for you answers about why my program works into the MSYS environment > and not other way ? > > I think the problem is the libvlc because the program start but libvlc > doesn't initialize. > > PS: Is it right to distribute only the *.dll contains into the /mingw64 > subfolders or must I add the *.dll from /c/windows too ? > > -- > > 3D imaging web-site: www.3dreaming-imaging.net > International web-site: www.open-source-projects.net > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity > planning > reports.http://sdm.link/zohodev2dev > _______________________________________________ > Msys2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/msys2-users > ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Msys2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/msys2-users
