$ objdump -p /usr/lib64/libprotobuf-lite.so.8.0.0|grep NEEDED|sort NEEDED libc.so.6 NEEDED libgcc_s.so.1 NEEDED libm.so.6 NEEDED libpthread.so.0 NEEDED libstdc++.so.6 NEEDED libz.so.1 $ objdump -p /usr/lib64/libprotoc.so.8.0.0|grep NEEDED|sort NEEDED libc.so.6 NEEDED libgcc_s.so.1 NEEDED libm.so.6 NEEDED libprotobuf.so.8 NEEDED libpthread.so.0 NEEDED libstdc++.so.6 NEEDED libz.so.1 from configure.ac: AC_ARG_WITH([zlib], [AS_HELP_STRING([--with-zlib], [include classes for streaming compressed data in and out @<:@default=check@:>@])], [],[with_zlib=check])
Fixed in 2.5.0-r3 and 2.6.1-r2.