Checking if your kit is complete... Warning: the following files are missing in your kit: SIGNATURE Please inform the author. Writing Makefile for Tree::Node cp lib/Tree/Node.pm blib/lib/Tree/Node.pm /home/cpanrun/build/5.6.1/bin/perl -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi -I/home/cpanrun/build/5.6.1/lib/5.6.1 /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Node.xs > Node.xsc && mv Node.xsc Node.c gcc -c -I. -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DVERSION=\"0.08\" -DXS_VERSION=\"0.08\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE Node.c In file included from Node.xs:12: TreeNode.h:18: field `next' has incomplete type make: *** [Node.o] Error 1