Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lkakasi
Writing Makefile for Text::Kakasi
cp Kakasi.pm blib/lib/Text/Kakasi.pm
cp lib/Text/Kakasi/JP.pod blib/lib/Text/Kakasi/JP.pod
/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 Kakasi.xs > Kakasi.xsc && mv Kakasi.xsc Kakasi.c
gcc -c -I/usr/local/include -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DVERSION=\"2.04\" -DXS_VERSION=\"2.04\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE -DWAKATIGAKI Kakasi.c
Kakasi.xs:33: libkakasi.h: No such file or directory
make: *** [Kakasi.o] Error 1