Hello, I got this problem:

 Did not find GP/PARI build directory around.

Do you want to me to fetch GP/PARI automatically?

  (If you do not, you will need to fetch it manually, and/or direct me
+ to
   the directory with GP/PARI source via the command-line option parid
+ir=/dir)

Make sure you have a large scrollback buffer to see the messages, or `
+tee'
the STDOUT/STDERR to a file.

Fetch? (y/n, press Enter) 

Well, as you wish...

(...)
One can rerun Makefile.PL after fetching GP/PARI archive (e.g., pari-2
+.1.7.tgz,
or pari-2.3.4.tar.gz) manually to the current directory, or a (grand)p
+arent
directory of the current directory.

  [Keep in mind that the numbers "inside version" of Math::Pari module
   correspond to the last versions of GP/PARI it was tested with (addi
+tionally,
   2.0108* works best with the last 2.1.* version, 2.1.7).

   As an alternative to having archive in CWD or its (grand)parent, sp
+ecify
       pari_tgz=PATH_TO_TAR_GZ
   option to Makefile.PL.

   There is no need to extract the archive, or build GP/PARI; but if y
+ou
   have it extracted [and patched, if needed], you may specify
       paridir=PATH_TO_DIST_DIR
   option to Makefile.PL instead of `pari_tgz'.  However, in this case
   the files WON'T be auto-patched.

   As a last-resort solution, there is also a possibility to use an al
+ready
   compiled PARI library.  See the documentation in README and INSTALL
+ files.]

Could not find GP/PARI build directory, please run Makefile.PL
with paridir=/directory option.
Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=s
+ite]
CPAN: YAML loaded ok (v0.73)
  ILYAZ/modules/Math-Pari-2.01080605.tar.gz
  /usr/bin/perl Makefile.PL INSTALLDIRS=site -- NOT OK
Running make test
  Make had some problems, won't test
Running make install
  Make had some problems, won't install
Could not read metadata file. Falling back to other methods to determi
+ne prerequisites
Failed during this command:
 ILYAZ/modules/Math-Pari-2.01080605.tar.gz    : writemakefile NO '/usr
+/bin/perl Makefile.PL INSTALLDIRS=site' returned status 2304
[download]

Where is that Makefile.PL? I've installed perl modules via cpan, so I dont know where to set this option paridir=/directory option. Help!!!!

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