This package comes with a sample program that I can try to install in /export/home/cpanrun/build/5.6.1/bin. Note that you can avoid this question by passing the '-n' option to 'Makefile.PL'. Install gloss.pl, a commandline graph layouter ? [y] y You don't seem to have the optional 'Graph::Directed' package. Not fatal. You don't seem to have the optional 'Graph::Undirected' package. Not fatal. You don't seem to have the optional 'gnuplot' program. Not fatal Checking if your kit is complete... Looks good Writing Makefile for Graph::Layout::Aesthetic cp lib/Graph/Layout/Aesthetic/Include.pm blib/lib/Graph/Layout/Aesthetic/Include.pm cp lib/Graph/Layout/Aesthetic/Force/NodeEdgeRepulsion.pm blib/lib/Graph/Layout/Aesthetic/Force/NodeEdgeRepulsion.pm cp lib/Graph/Layout/Aesthetic/Force/MinLevelVariance.pm blib/lib/Graph/Layout/Aesthetic/Force/MinLevelVariance.pm cp lib/Graph/Layout/Aesthetic/Force/NodeRepulsion.pm blib/lib/Graph/Layout/Aesthetic/Force/NodeRepulsion.pm cp lib/Graph/Layout/Aesthetic/Force/ParentLeft.pm blib/lib/Graph/Layout/Aesthetic/Force/ParentLeft.pm cp lib/Graph/Layout/Aesthetic/Topology.pm blib/lib/Graph/Layout/Aesthetic/Topology.pm cp lib/Graph/Layout/Aesthetic/Force/Perl.pm blib/lib/Graph/Layout/Aesthetic/Force/Perl.pm cp lib/Graph/Layout/Aesthetic/Force/Centripetal.pm blib/lib/Graph/Layout/Aesthetic/Force/Centripetal.pm cp lib/Graph/Layout/Aesthetic.pm blib/lib/Graph/Layout/Aesthetic.pm cp lib/Graph/Layout/Aesthetic/Force/MinEdgeIntersect2.pm blib/lib/Graph/Layout/Aesthetic/Force/MinEdgeIntersect2.pm cp lib/Graph/Layout/Aesthetic/Force/MinEdgeIntersect.pm blib/lib/Graph/Layout/Aesthetic/Force/MinEdgeIntersect.pm cp lib/Graph/Layout/Aesthetic/Force.pm blib/lib/Graph/Layout/Aesthetic/Force.pm cp lib/Graph/Layout/Aesthetic/Force/MinEdgeLength.pm blib/lib/Graph/Layout/Aesthetic/Force/MinEdgeLength.pm cp lib/Graph/Layout/Aesthetic/Monitor/GnuPlot.pm blib/lib/Graph/Layout/Aesthetic/Monitor/GnuPlot.pm /export/home/cpanrun/build/5.6.1/bin/perl -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi -I/export/home/cpanrun/build/5.6.1/lib/5.6.1 /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Aesthetic.xs > Aesthetic.xsc && mv Aesthetic.xsc Aesthetic.c gcc -c -I include -DUSE_REENTRANT_API -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DPERL_EXTMALLOC_DEF -Dmalloc=Perl_malloc -Dfree=Perl_mfree -Drealloc=Perl_realloc -Dcalloc=Perl_calloc -DVERSION=\"0.12\" -DXS_VERSION=\"0.12\" -fPIC -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi/CORE Aesthetic.c In file included from Aesthetic.xs:12: include/ppport.h: In function `_grok_hex': include/ppport.h:633: `my_perl' undeclared (first use in this function) include/ppport.h:633: (Each undeclared identifier is reported only once include/ppport.h:633: for each function it appears in.) include/ppport.h: In function `_grok_oct': include/ppport.h:648: `my_perl' undeclared (first use in this function) include/ppport.h: In function `_grok_bin': include/ppport.h:663: `my_perl' undeclared (first use in this function) make: *** [Aesthetic.o] Error 1