prefix=/usr/pkg
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: libout123
Description: A streaming audio output API derived from mpg123
Requires: 
Version: 1.32.10
Libs: -Wl,-R${libdir} -L${libdir} -lout123 
Libs.private:  -lm  
Cflags: -I${includedir} 
