message: thirdpary: explicit libdir path
  on some hosts (amd64 centos and fedora) the libdir path defaults to
  lib64, though elsewhere the path is expected to be ./lib/
diff: @@ -36,6 +36,7 @@ mkdir build
  cd build
  cmake -G "Ninja" -DCMAKE_INSTALL_PREFIX="$THIRDPARTY_BUILD" \
  + -DCMAKE_INSTALL_LIBDIR="$THIRDPARTY_BUILD/lib" \
  -DENABLE_STATIC_LIB=on \
  -DENABLE_LIB_ONLY=on \
  ..
  