prefix=/opt/local
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: Protocol Buffers
Description: Google's Data Interchange Format
Version: 2.6.1
Libs: -L${libdir} -lprotobuf-lite -D_THREAD_SAFE  
Cflags: -I${includedir} -D_THREAD_SAFE 
# Commented out because it crashes pkg-config *sigh*:
#   http://bugs.freedesktop.org/show_bug.cgi?id=13265
# Conflicts: protobuf
