adding a perl module to CiscoWorks PERL !?

[Martin Ermel]

I have written a perl script to get some info form LMS and store it into a file. Now I want to SFTP this file onto a network share. I want to implement this in Perl as well but on my solaris box (having the solaris perl installed) I cannot find an according module. When I try to install 'Net-SFTP-Foreign' I have problems because I have the wrong compiler. Now I want to know if it is save to add this module to the CiscoWorks Perl version. Or will I run into problems?

Any other suggestion on how to realize this is pretty welcome!

[yjdabear]

Could you just put the sftp commands in the exec() or system() wrapper in perl, so you can bypass installing the third-party perl modules altogether? Assuming OpenSSH is installed on the box.

[Martin Ermel]

I thought of this also but the sftp is interactive and I think I would need something like an Expect module...

or isn`t this true?

[Joe Clarke]

Do not add any modules to CiscoWorks' Perl as this could mess up upgrades. As an alternative to installing modules, just keep your modules in a local directory, and use perl -I to find them. For example:

perl -I/export/home/marcus/lib/perl script.pl

Expect is another way to go. With expect, you could easily just wrap the box's sftp executable. Of course, this will mean writing some TCL code.

[Martin Ermel]

Ok, when I want to keep the module in a local dir can I use CiscoWorks' version of Perl to install the modules?

When I use the 'standard' version of my solaris box (/usr/bin/perl) I have got the following 2 problems:

1) prerequisite failed

2) when I want to install the missing module it cannot be compiled (thats the main problem..)

but I think it should work if I would use CiscoWorks' Perl. But what is the correct command to install the modules with /opt/CSCOpx/bin/perl in a local directory (like /usr/perl5/myCPAN) without running into prolblems with LMS

##### this is an excerpt of what I get when trying to install the modules

bash-2.05# perl Makefile.PL

Checking if your kit is complete...

Looks good

Warning: prerequisite Scalar::Util failed to load: Can't locate Scalar/Util.pm in @INC (@INC contains: /usr/perl5/5.6.1/lib/sun4-solaris-64int /usr/perl5/5.6.1/lib /usr/perl5/site_perl/5.6.1/sun4-solaris-64int /usr/perl5/site_perl/5.6.1 /usr/perl5/site_perl /usr/perl5/vendor_perl/5.6.1/sun4-solaris-64int /usr/perl5/vendor_perl/5.6.1 /usr/perl5/vendor_perl .) at (eval 4) line 3.

Warning: prerequisite Test::More failed to load: Can't locate Test/More.pm in @INC (@INC contains: /usr/perl5/5.6.1/lib/sun4-solaris-64int /usr/perl5/5.6.1/lib /usr/perl5/site_perl/5.6.1/sun4-solaris-64int /usr/perl5/site_perl/5.6.1 /usr/perl5/site_perl /usr/perl5/vendor_perl/5.6.1/sun4-solaris-64int /usr/perl5/vendor_perl/5.6.1 /usr/perl5/vendor_perl .) at (eval 5) line 3.

Writing Makefile for Net::SFTP::Foreign

bash-2.05#

### OK- because of the warnings I want to install List::Util and get the following error...

bash-2.05# perl Makefile.PL

Checking if your kit is complete...

Looks good

Writing Makefile for List::Util

bash-2.05# make

cp lib/List/Util.pm blib/lib/List/Util.pm

cp lib/Scalar/Util.pm blib/lib/Scalar/Util.pm

/bin/perl "-Iinc" -I/usr/perl5/5.6.1/lib/sun4-solaris-64int /usr/perl5/5.6.1/lib/ExtUtils/xsubpp -typemap /usr/perl5/5.6.1/lib/ExtUtils/typemap -typemap mytypemap Util.xs > Util.xsc && mv Util.xsc Util.c

cc -c -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -xO3 -xdepend -DVERSION=\"1.19\" -DXS_VERSION=\"1.19\" -KPIC -I/usr/perl5/5.6.1/lib/sun4-solaris-64int/CORE -DPERL_EXT Util.c

/usr/ucb/cc: language optional software package not installed

make: *** [Util.o] Error 1

bash-2.05# make test

cc -c -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -xO3 -xdepend -DVERSION=\"1.19\" -DXS_VERSION=\"1.19\" -KPIC -I/usr/perl5/5.6.1/lib/sun4-solaris-64int/CORE -DPERL_EXT Util.c

/usr/ucb/cc: language optional software package not installed

make: *** [Util.o] Error 1

bash-2.05# make install

cc -c -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -xO3 -xdepend -DVERSION=\"1.19\" -DXS_VERSION=\"1.19\" -KPIC -I/usr/perl5/5.6.1/lib/sun4-solaris-64int/CORE -DPERL_EXT Util.c

/usr/ucb/cc: language optional software package not installed

make: *** [Util.o] Error 1

bash-2.05#

### and according to a sun doc this is due to different versions of compilers (the one used on the solaris box and the one with which the module was generated)

[Joe Clarke]

No, this problem indicates you don't have a compiler installed. You need to install the Sun Forte compiler if you want to use Sun's cc.

If you just want to compile stuff, I recommend checking out Blastwave (http://www.blastwave.org). This site makes third-party package management a breeze for Solaris. Here you can find the GNU C compiler, which will allow you to build native Perl modules.

Once you get a good compiler on your server, you can build your Perl modules by specifying an alternate installation prefix:

make PREFIX=/home/marcus/lib/perl

Then when you install the module, it will go where you want it to go. Note: you should do the installation as a non-root user so that modules that are not PREFIX-safe don't corrupt your CiscoWorks installation.

[Martin Ermel]

Oh, it's not me who want to use cc, - it's 'make' who want to use it... (I just want to add a module to my installed version of Perl..;-) )

As I have previously installed a mdoule (libnet-1.19 to get Net::FTP) without a problem I thought I should have all I need- but from what you say (if I understand correct) not every perl module needs a C compiler to get installed.

And now I am at the point that I want to install a perl module that needs a C compiler. And - is that correct? - my 'Sun' Perl wants to use the Forte C compiler (cc) with which my 'Sun' Perl was built. And because I don't have it I will run in that error.

Now, I have the option to get a running (GNU) C compiler (gcc) from e.g. http://www.blastwave.com and have to force my 'Sun Perl' to use this compiler instead (gcc instead of cc) along with the Solaris::PerlGcc module to get around some other dependencies as mentioned here: http://sunsolve.sun.com/search/document.do?assetkey=1-25-11339)

Or to just get the Forte C compiler (e.g. along with a version of SunStudio)

mhm, I don't like both versions much - but I think I will try the later one to keep it kind of 'homogene'

[Joe Clarke]

If you want to use an alternate C compiler with Perl, just set the CC environment variable. Most modules with honor that.

% setenv CC=/opt/csw/gcc3/bin/gcc

% perl Makefile.PL

% make

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