How To Install/Update CPAN on MacOS Mojave with fatal error: ‘EXTERN.h’ file not found

Author: erics, June 12th, 2019

The Problem Tried to install the latest version of cpan and got stuck. Tracked it down to the dependency module Mac::SystemDirectory which was failing to build:

cpan[1]> install Mac::SystemDirectory                                                                                                                                                                                                                                                    
Reading '/var/root/.cpan/Metadata'
  Database was generated on Sun, 09 Jun 2019 07:17:02 GMT
Running install for module 'Mac::SystemDirectory'
Running make for E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz
Checksum for /var/root/.cpan/sources/authors/id/E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz ok
Scanning cache /var/root/.cpan/build for sizes
............................................................................DONE

  CPAN.pm: Building E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz

HASCOMPILEREZFt/TESTUSSI.c:2:10: fatal error: 'EXTERN.h' file not found
#include "EXTERN.h"
         ^~~~~~~~~~
1 error generated.
Couldn't execute cc  -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -fstack-protector -Os "-I/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE"   -c HASCOMPILEREZFt/TESTUSSI.c -o HASCOMPILEREZFt/TESTUSSI.o: Inappropriate ioctl for device at Makefile.PL line 14.
Requires a compiler
Warning: No success on command[/usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE]
  ETHER/Mac-SystemDirectory-0.10.tar.gz
  /usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE -- NOT OK
Running make test
  Make had some problems, won't test
Running make install
  Make had some problems, won't install
Failed during this command:
 ETHER/Mac-SystemDirectory-0.10.tar.gz        : writemakefile NO '/usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE' returned status 6400

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cpan[1]> install Mac::SystemDirectory

Reading '/var/root/.cpan/Metadata'

Database was generated on Sun, 09 Jun 2019 07:17:02 GMT

Running install for module 'Mac::SystemDirectory'

Running make for E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz

Checksum for /var/root/.cpan/sources/authors/id/E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz ok

Scanning cache /var/root/.cpan/build for sizes

............................................................................DONE

CPAN.pm: Building E/ET/ETHER/Mac-SystemDirectory-0.10.tar.gz

HASCOMPILEREZFt/TESTUSSI.c:2:10: fatal error: 'EXTERN.h' file not found

#include "EXTERN.h"

^~~~~~~~~~

1 error generated.

Couldn't execute cc -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -fstack-protector -Os "-I/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE" -c HASCOMPILEREZFt/TESTUSSI.c -o HASCOMPILEREZFt/TESTUSSI.o: Inappropriate ioctl for device at Makefile.PL line 14.

Requires a compiler

Warning: No success on command[/usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE]

ETHER/Mac-SystemDirectory-0.10.tar.gz

/usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE -- NOT OK

Running make test

Make had some problems, won't test

Running make install

Make had some problems, won't install

Failed during this command:

ETHER/Mac-SystemDirectory-0.10.tar.gz : writemakefile NO '/usr/bin/perl Makefile.PL INC=-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE' returned status 6400

The Solution Use the MacOS installer command to deploy the needed files:

xcode-select --install
sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /
installer: Package name is macOS_SDK_headers_for_macOS_10.14
installer: Installing at base path /
installer: The install was successful.

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xcode-select --install

sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /

installer: Package name is macOS_SDK_headers_for_macOS_10.14

installer: Installing at base path /

installer: The install was successful.

The, rerunning the cpan install works:

cpan[1]> install Mac::SystemDirectory                                                                                                                                                                                                                                                    
...
Running make install
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Installing /Library/Perl/5.18/darwin-thread-multi-2level/auto/Mac/SystemDirectory/SystemDirectory.bs
Installing /Library/Perl/5.18/darwin-thread-multi-2level/auto/Mac/SystemDirectory/SystemDirectory.bundle
Installing /Library/Perl/5.18/darwin-thread-multi-2level/Mac/SystemDirectory.pm
Installing /usr/local/share/man/man3/Mac::SystemDirectory.3pm
Appending installation info to /Library/Perl/Updates/5.18.2/darwin-thread-multi-2level/perllocal.pod
  ETHER/Mac-SystemDirectory-0.10.tar.gz
  /usr/bin/make install  -- OK

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cpan[1]> install Mac::SystemDirectory

...

Running make install

Files found in blib/arch: installing files in blib/lib into architecture dependent library tree

Installing /Library/Perl/5.18/darwin-thread-multi-2level/auto/Mac/SystemDirectory/SystemDirectory.bs

Installing /Library/Perl/5.18/darwin-thread-multi-2level/auto/Mac/SystemDirectory/SystemDirectory.bundle

Installing /Library/Perl/5.18/darwin-thread-multi-2level/Mac/SystemDirectory.pm

Installing /usr/local/share/man/man3/Mac::SystemDirectory.3pm

Appending installation info to /Library/Perl/Updates/5.18.2/darwin-thread-multi-2level/perllocal.pod

ETHER/Mac-SystemDirectory-0.10.tar.gz

/usr/bin/make install -- OK

Categories: How-To's, Technology Tags: 10.14, CPAN, Error, extern.h, Fatal, Fatal Error, File not found, Header, headers, howto, Install, installer, Libraries, Library, MacOS, Mojave, not found, Package, perl, pkg, System, tips, update, upgrade, XCode | No comments

How To Watch https Calls to Apache 2.4 using Perl and mod_status

Author: erics, September 5th, 2017

Step 1: Enable Apache status and lock it down: Make sure mod_status is being loaded:

shell> grep -Rn mod_status /etc/httpd/*

/etc/httpd/conf.modules.d/00-base.conf:58:LoadModule status_module modules/mod_status.so

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shell> grep -Rn mod_status /etc/httpd/*

/etc/httpd/conf.modules.d/00-base.conf:58:LoadModule status_module modules/mod_status.so

Add support for the call just under the first DocumentRoot statement:

shell> vim /etc/httpd/conf/httpd.conf

<Location /server-status>
    SetHandler server-status
    Require ip 127.0.0.1
    Require ip ::1
    Require ip {Your_IP_Here}
</Location>

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shell> vim /etc/httpd/conf/httpd.conf

SetHandler server-status

Require ip 127.0.0.1

Require ip ::1

Require ip {Your_IP_Here}

</Location>

Step 2. Prepare your environment:

shell> cpan YAML HTML::TableExtract

1	shell> cpan YAML HTML::TableExtract

Step 3: Create and run the status script: (See the astat contents at the bottom)

shell> vim /root/astat
shell> chmod 755 /root/astat
shell> vi ~/.bashrc

ADD: alias ipw='while true; do sleep 5; /root/astat; done'

shell> ipw

1.2.3.4|yourdomain.com:443|POST /wp-cron.php?doing_wp_cron=1563901063.57946491241455078125|

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shell> vim /root/astat

shell> chmod 755 /root/astat

shell> vi ~/.bashrc

ADD: alias ipw='while true; do sleep 5; /root/astat; done'

shell> ipw

1.2.3.4|yourdomain.com:443|POST /wp-cron.php?doing_wp_cron=1563901063.57946491241455078125|

/root/astat

#!/usr/bin/perl

use strict;

use HTML::TableExtract;

# PATH to "curl" utility
my $CURL = "/usr/bin/curl";

# URL of the server-status we want to process
my $STATUS_URL = "http://localhost/server-status";

# those are the headers in the first row of the table we want to extract
# Used by HTML::TableExtract to search for our table, within the whole HTML output
my $headers =['Srv','PID','Acc','M','CPU','SS','Req','Conn','Child','Slot','Client','VHost','Request'];

# Let's fetch the status page...
my $output = `$CURL -s $STATUS_URL`;

# Let's search for our table within the HTML...
my $tables = HTML::TableExtract->new( headers => $headers );

# We found it (hopefully), so let's parse it...
$tables->parse($output);

# ...and let's stick to the first one
my $status_table = $tables->first_table_found;

# Now let's loop allover the rows...
foreach my $row_ref ($status_table->rows) {
      # Let's de-reference the ARRAY reference, so to better manager
      # the various elements...
      my @row = @$row_ref;

      # Let's check for IP
      next if $row[10]=~/127.0.0.1/;
      next if $row[10]=~/216.66.125.161/;
      next if $row[10]=~/69.162.124.235/;

      # Let's check for an OPTIONS row...
      if ($row[12]=~/OPTIONS/) {
         # simply skip to next row in the loop
         next;
      }

      # Let's choose whatever columns we want (first column has index "0")
      # So here we have Srv, PID, Client and Request
      #foreach my $column (0,1,10,12) {
      foreach my $column (10,11,12) {
        print $row[$column]."|";
      }
      print "\n";
}

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#!/usr/bin/perl

use strict;

use HTML::TableExtract;

# PATH to "curl" utility

my $CURL = "/usr/bin/curl";

# URL of the server-status we want to process

my $STATUS_URL = "http://localhost/server-status";

# those are the headers in the first row of the table we want to extract

# Used by HTML::TableExtract to search for our table, within the whole HTML output

my $headers =['Srv','PID','Acc','M','CPU','SS','Req','Conn','Child','Slot','Client','VHost','Request'];

# Let's fetch the status page...

my $output = `$CURL -s $STATUS_URL`;

# Let's search for our table within the HTML...

my $tables = HTML::TableExtract->new( headers => $headers );

# We found it (hopefully), so let's parse it...

$tables->parse($output);

# ...and let's stick to the first one

my $status_table = $tables->first_table_found;

# Now let's loop allover the rows...

foreach my $row_ref ($status_table->rows) {

# Let's de-reference the ARRAY reference, so to better manager

# the various elements...

my @row = @$row_ref;

# Let's check for IP

next if $row[10]=~/127.0.0.1/;

next if $row[10]=~/216.66.125.161/;

next if $row[10]=~/69.162.124.235/;

# Let's check for an OPTIONS row...

if ($row[12]=~/OPTIONS/) {

# simply skip to next row in the loop

next;

}

# Let's choose whatever columns we want (first column has index "0")

# So here we have Srv, PID, Client and Request

#foreach my $column (0,1,10,12) {

foreach my $column (10,11,12) {

print $row[$column]."|";

}

print "\n";

}

Categories: How-To's, Technology Tags: 2.4, apache, Apache 2.4, CPAN, howto, http, httpd, https, mod_status, perl, Status, tips, YAML | No comments

How To Configure CPAN to Automatically Install Dependencies Without Confirmation

Author: erics, March 20th, 2014

perl -MCPAN -e ‘my $c = “CPAN::HandleConfig”; $c->load(doit => 1, autoconfig => 1); $c->edit(prerequisites_policy => “follow”); $c->edit(connect_to_internet_ok => “yes”); $c->edit(build_requires_install_policy => “yes”); $c->commit’

Categories: How-To's, Technology Tags: Auto, Automatic, CPAN, Dependencies, Dependency, howto, Install, tips | No comments

How To Fix CPAN Error Undefined subroutine &IO::Uncompress::Base::readonly

Author: erics, December 26th, 2013

CPAN Error: Undefined subroutine &IO::Uncompress::Base::readonly called at /usr/lib/perl5/site_perl/5.8.8/IO/Uncompress/Base.pm Looks like CentOS update installs an older version of the Scalar::Util so that Perl could not load the module. Download the Scalar::Util module and manually install it:

wget http://search.cpan.org/CPAN/authors/id/P/PE/PEVANS/Scalar-List-Utils-1.35.tar.gz
tar xvzf Scalar-List-Utils-*.tar.gz
cd Scalar-List-Utils-*
perl Makefile.PL
gmake
gmake test
gmake install

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wget http://search.cpan.org/CPAN/authors/id/P/PE/PEVANS/Scalar-List-Utils-1.35.tar.gz

tar xvzf Scalar-List-Utils-*.tar.gz

cd Scalar-List-Utils-*

perl Makefile.PL

gmake

gmake test

gmake install

To test: perl -MCPAN -e ‘shell’ For more information, visit the CPAN Util.pm page. Original Post: http://www.perlmonks.org/?displaytype=print;node_id=965635;replies=1

Categories: How-To's, Technology Tags: CPAN, howto, IO, IO::Uncompress, perl, Scalar, Scalar::Utils, tips, Uncompress, Utils | 1 comment

How To Configure AWS SES Perl Scripts

Author: erics, October 27th, 2011

Your mileage may vary widely…

export AWS_CREDENTIALS_FILE=/root/aws/aws-credentials
mkdir /opt/aws/bin
cd /opt/aws/bin
wget http://aws-catalog-download-files.s3.amazonaws.com/AmazonSES-2011-07-21.zip
unzip AmazonSES-2011-07-21.zip

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export AWS_CREDENTIALS_FILE=/root/aws/aws-credentials

mkdir /opt/aws/bin

cd /opt/aws/bin

wget http://aws-catalog-download-files.s3.amazonaws.com/AmazonSES-2011-07-21.zip

unzip AmazonSES-2011-07-21.zip

CentOS

yum install libxml2-devel

1	yum install libxml2-devel

Ubuntu

apt-get install gcc
apt-get install libssl-dev 
apt-get install libxml2-dev
apt-get install libio-socket-ssl-perl
apt-get install libnet-ssleay-perl
apt-get install libnet-https-any-perl
apt-get install liblwp-useragent-determined-perl

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apt-get install gcc

apt-get install libssl-dev

apt-get install libxml2-dev

apt-get install libio-socket-ssl-perl

apt-get install libnet-ssleay-perl

apt-get install libnet-https-any-perl

apt-get install liblwp-useragent-determined-perl

For all OS

cpan CPAN YAML Digest::SHA  URI::Escape Bundle::LWP MIME::Base64 Crypt::SSLeay XML::LibXML LWP::Protocol::https
perl -e 'print "@INC;\n";'
cp SES.pm {one path from above command}
/opt/aws/bin/ses-verify-email-address.pl -l

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cpan CPAN YAML Digest::SHA URI::Escape Bundle::LWP MIME::Base64 Crypt::SSLeay XML::LibXML LWP::Protocol::https

perl -e 'print "@INC;\n";'

cp SES.pm {one path from above command}

/opt/aws/bin/ses-verify-email-address.pl -l

Categories: How-To's, Technology Tags: Amazon, apt-get, AWS, CPAN, howto, perl, SES, Simple Email Service, tips, XML, Yum | No comments

How To Calculate Time In Perl Using Date::Manip OO Mode

Author: erics, March 22nd, 2011

my $now = new Date::Manip::Date; $now->parse(‘now’); # in GMT $now->convert(‘EST5EDT’); # in Eastern time my $then = new Date::Manip::Date; $then->parse(‘200503131131’); # in GMT $then->convert(‘EST5EDT’); # in Eastern time my $delta = $now->calc($then); my @delta = $delta->value(); # get delta values as an array foreach (@delta) { $_ = abs($_); } # remove negative signs my […]

Categories: How-To's, Technology Tags: CPAN, Date::Manip, howto, perl, tips | No comments

How To Fix Webmin PAM Errors At Startup

Author: admin, January 30th, 2011

If you are seeing PAM errors in /var/webmin/miniserv.error, then try the following: # yum install pam-devel # cpan Authen::PAM # vim /etc/pam.d/webmin auth include system-auth # service webmin restart Log will now say: PAM authentication enabled instead of : PAM test failed – maybe /etc/pam.d/webmin does not exist

Categories: How-To's, Technology Tags: CPAN, howto, PAM, perl, tips, Webmin | No comments

Good Things To Know About CPAN

Author: erics, November 7th, 2010

install Term::ReadKey install readline install Term::ReadLine

Categories: How-To's, Technology Tags: CPAN, readkey, readline | No comments

How To Install CPAN on Fedora

Author: erics, October 19th, 2010

[code]yum install perl-CPAN[/code]

Categories: How-To's, Technology Tags: CPAN, Fedora, perl | No comments

How To Install Multiple Perl Modules From The Command Line

Author: erics, July 14th, 2010

Create a text file containing the list of desired modules, one per line. Name it “modules.txt”. Then execute this command: for module in cat modules.txt; do echo $module; perl -MCPAN -e “install $module”; done

Categories: How-To's, Technology Tags: cli, Command line, CPAN, Install, Install Multiple, Multiple, perl | No comments

How To Install/Update CPAN on MacOS Mojave with fatal error: ‘EXTERN.h’ file not found

How To Watch https Calls to Apache 2.4 using Perl and mod_status

How To Configure CPAN to Automatically Install Dependencies Without Confirmation

How To Fix CPAN Error Undefined subroutine &IO::Uncompress::Base::readonly

How To Configure AWS SES Perl Scripts

How To Calculate Time In Perl Using Date::Manip OO Mode

How To Fix Webmin PAM Errors At Startup

Good Things To Know About CPAN

How To Install CPAN on Fedora

How To Install Multiple Perl Modules From The Command Line

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