cpan[7]> install GraphViz
Running install for module 'GraphViz'
Checksum for /home/uce/.cpan/sources/authors/id/R/RS/RSAVAGE/GraphViz-2.20.tgz ok
Configuring R/RS/RSAVAGE/GraphViz-2.20.tgz with Build.PL
Can't exec "dot": Ficheiro ou directoria inexistente at Build.PL line 14.
Please install Graphviz from http://www.graphviz.org/.
No 'Build' created  RSAVAGE/GraphViz-2.20.tgz
  /usr/local/bin/perl Build.PL --installdirs site -- NOT OK
Failed during this command:
 RSAVAGE/GraphViz-2.20.tgz                    : writemakefile NO -- No 'Build' created

##</code><code>##

cpan[6]> install DB_File
Running install for module 'DB_File'
Checksum for /home/uce/.cpan/sources/authors/id/P/PM/PMQS/DB_File-1.838.tar.gz ok
Configuring P/PM/PMQS/DB_File-1.838.tar.gz with Makefile.PL
Parsing config.in...
Looks Good.
Checking if your kit is complete...
Looks good
'EXPATINCPATH' is not a known MakeMaker parameter name.
'EXPATLIBPATH' is not a known MakeMaker parameter name.
Warning (mostly harmless): No library found for -ldb
Generating a Unix-style Makefile
Writing Makefile for DB_File
Writing MYMETA.yml and MYMETA.json
  PMQS/DB_File-1.838.tar.gz
  /usr/local/bin/perl Makefile.PL EXPATLIBPATH=/non-standard/lib EXPATINCPATH=/non-standard/include -- OK
Running make for P/PM/PMQS/DB_File-1.838.tar.gz
cp DB_File.pm blib/lib/DB_File.pm
Running Mkbootstrap for DB_File ()
chmod 644 "DB_File.bs"
"/usr/local/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- DB_File.bs blib/arch/auto/DB_File/DB_File.bs 644
cc -c  -I/usr/local/BerkeleyDB/include -fwrapv -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DVERSION=\"1.838\" -DXS_VERSION=\"1.838\" -fPIC "-I/usr/local/lib/perl5/5.24.0/x86_64-linux/CORE"  -D_NOT_CORE  -DmDB_Prefix_t=size_t -DmDB_Hash_t=u_int32_t   version.c 
version.c:30:16: fatal error: db.h: Ficheiro ou directoria inexistente
 #include <db.h>
                ^
compilation terminated.
make: ** [version.o] Erro 1
  PMQS/DB_File-1.838.tar.gz
  /usr/bin/make -- NOT OK
Failed during this command:
 PMQS/DB_File-1.838.tar.gz                    : make NO

##</code><code>##

cpan[5]> install Bio::SeqIO
Running install for module 'Bio::SeqIO'
Checksum for /home/uce/.cpan/sources/authors/id/C/CJ/CJFIELDS/BioPerl-1.6.924.tar.gz ok
Scanning cache /home/uce/.cpan/build for sizes
............................................................................DONE
Configuring C/CJ/CJFIELDS/BioPerl-1.6.924.tar.gz with Build.PL
Checking prerequisites...
  recommends:
    *  DB_File is not installed
    *  GraphViz is not installed
    *  SOAP::Lite is not installed

Checking optional features...
Bio::DB::GFF Tests....disabled
  requires:
    ! DBI is not installed
DB_File Tests.........disabled
  requires:
    ! DB_File is not installed
EntrezGene............disabled
  requires:
    ! Bio::ASN1::EntrezGene is not installed
MySQL Tests...........disabled
  requires:
    ! DBD::mysql is not installed
    ! DBI is not installed
Pg Tests..............disabled
  requires:
    ! DBD::Pg is not installed
    ! DBI is not installed
SQLite Tests..........disabled
  requires:
    ! DBD::SQLite is not installed
    ! DBI is not installed

ERRORS/WARNINGS FOUND IN PREREQUISITES.  You may wish to install the versions
of the modules indicated above before proceeding with this installation

Install [a]ll BioPerl scripts, [n]one, or choose groups [i]nteractively? [a] ^CWarning: No success on command[/usr/local/bin/perl Build.PL --installdirs site]
  CJFIELDS/BioPerl-1.6.924.tar.gz
  /usr/local/bin/perl Build.PL --installdirs site -- NOT OK
Failed during this command:
 CJFIELDS/BioPerl-1.6.924.tar.gz              : writemakefile NO '/usr/local/bin/perl Build.PL --installdirs site' returned status 2

##</code><code>##

All tests successful.
Files=334, Tests=21522, 120 wallclock secs ( 3.39 usr  0.47 sys + 107.39 cusr  4.43 csys = 115.68 CPU)
Result: PASS