On Sun, 2015-09-20 at 20:20 +0200, Rainer Blickle wrote: > Hi folks, > > i'm trying to develop an application which uses pulseaudio for sound > output. I wan to use the simple api. > > The environment of my application is Java, so i use a shared library > with JNI. In this shared library i am calling (beside others) > pa_simple_new. > > > I compile the shared library with: > > > gcc -I/usr/lib/jvm/java-8-oracle/include -I/usr/lib/jvm/java-8 > -oracle/include/linux -L/usr/lib/x86_64-linux-gnu/ -o > libaudioserver.so -lpulse-simple -shared -fPIC > de_blickle_audioserver_pulseaudio_PulseAudioClient.c > > so i link against libpulse-simple.so. I thought in the shared library > there are the functions for the simple api. But when showing the > symbols of libpulse-simple, nm returns no symbol at all. Try the -D (--dynamic) switch with nm. > When showing the dependencies of my shared library (libaudioserver.so > ), no pulseaudio-lib is shown: > > ldd libaudioserver.so > linux-vdso.so.1 => (0x00007ffe5b5d5000) > libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6c797c5000) > /lib64/ld-linux-x86-64.so.2 (0x00007f6c79d8c000) > > When executing my program it compains with > > /usr/lib/jvm/java-8-oracle/bin/java: symbol lookup error: > /home/rainer/NetBeansProjects/audioserver/src/main/native/libaudioser > ver.so: undefined symbol: pa_simple_new > > So my question is: > > Where do i get the symbols for the simple api from. Is there another > shared library i have to reference ? libpulse-simple is the correct library. I don't know why it's not getting linked to libaudioserver.so. -- Tanu
