Hello, i tried to install Neomail, a web based perl email client; when i start to install, it tells me it requires MD5 module; so i downloaded it from CPAN but when i type perl Makefile.pl it gives me an error: 
 
Checking if your kit is complete...
Looks good

Error: Unable to locate installed Perl libraries or Perl source code.

It is recommended that you install perl in a standard location before
building extensions. Some precompiled versions of perl do not contain
these header files, so you cannot build extensions. In such a case,
please build and install your perl from a fresh perl distribution. It
usually solves this kind of problem.

(You get this message, because MakeMaker could not find "/usr/lib/perl
+5/5.8.0/i86-linux-thread-multi/CORE/perl.h")

[download]
Well; i tried to search on PerlMonks for this argumet and i find 'Unable to locate installed Perl libraries' Error and tye answer but i can't understand: i have the /usr/lib/perl5/5.8.0/i86-linux-thread-multi/CORE/ directory but perl.h doesn't exist: it contains only "libperl.so"; if i type perl -V i can't find $Config{privlib} nor $Config{archlib}.
What have i to install?
i hope i explain well my problem; sorry for my english...

In reply to neomail and perl install by nathanvit

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