jacks@box:~/src$ gcc -lpulse-simple -lpulse parec-simple.c -o par
/tmp/ccID8MhF.o: In function `main':
parec-simple.c:(.text+0xdc): undefined reference to `pa_simple_new'
parec-simple.c:(.text+0xfd): undefined reference to `pa_strerror'
parec-simple.c:(.text+0x141): undefined reference to `pa_simple_read'
parec-simple.c:(.text+0x157): undefined reference to `pa_strerror'
parec-simple.c:(.text+0x1e2): undefined reference to `pa_simple_free'
collect2: error: ld returned 1 exit status
jacks@box:~/src$ pkg-config --cflags --libs pulse-simple
Package pulse-simple was not found in the pkg-config search path.
Perhaps you should add the directory containing `pulse-simple.pc'
to the PKG_CONFIG_PATH environment variable
Package 'pulse-simple', required by 'world', not found
jacks@box:~/src$ sudo pkg-config --list-all | grep libpulse-simple
libpulse-simple                libpulse-simple - PulseAudio Simplified Synchronous Client Interface