Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lploticus
Writing Makefile for Chart::Ploticus
cp Ploticus.pm blib/lib/Chart/Ploticus.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 Ploticus.xs > Ploticus.xsc && mv Ploticus.xsc Ploticus.c
Please specify prototyping behavior for Ploticus.xs (see perlxs manual)
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=\"0.01\" -DXS_VERSION=\"0.01\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE  Ploticus.c
Running Mkbootstrap for Chart::Ploticus ()
chmod 644 Ploticus.bs
rm -f blib/arch/auto/Chart/Ploticus/Ploticus.so
LD_RUN_PATH="/usr/lib" gcc  -shared Ploticus.o  -o blib/arch/auto/Chart/Ploticus/Ploticus.so   -L/usr/local/lib -lpng -lz  
/usr/bin/ld: cannot find -lpng
collect2: ld returned 1 exit status
make: *** [blib/arch/auto/Chart/Ploticus/Ploticus.so] Error 1