PERLIVP(1) | Perl Programmers Reference Guide | PERLIVP(1)

# NAME

perlivp - Perl Installation Verification Procedure

# SYNOPSIS

perlivp [-p] [-v] [-h]

# DESCRIPTION

The perlivp program is set up at Perl source code build time to test the Perl version it was built under. It can be used after running:

        make install

(or your platform's equivalent procedure) to verify that perl and its libraries have been installed correctly. A correct installation is verified by output that looks like:

        ok 1
        ok 2

etc.

# OPTIONS

-h help
  Prints out a brief help message.
-p print preface
  Gives a description of each test prior to performing it.
-v verbose
  Gives more detailed information about each test, after it has been performed. Note that any failed tests ought to print out some extra information whether or not -v is thrown.

# DIAGNOSTICS

- print "# Perl binary '$perlpath' does not appear executable.\n";

  Likely to occur for a perl binary that was not properly installed. Correct by conducting a proper installation.

- print "# Perl version '$]' installed, expected $ivp_VERSION.\n";

  Likely to occur for a perl that was not properly installed. Correct by conducting a proper installation.

- print "# Perl \@INC directory '$_' does not appear to exist.\n";

  Likely to occur for a perl library tree that was not properly installed. Correct by conducting a proper installation.

- print "# Needed module '$_' does not appear to be properly installed.\n";

  One of the two modules that is used by perlivp was not present in the installation. This is a serious error since it adversely affects perlivp's ability to function. You may be able to correct this by performing a proper perl installation.

- print "# Required module '$_' does not appear to be properly installed.\n";

  An attempt to "eval "require $module"" failed, even though the list of extensions indicated that it should succeed. Correct by conducting a proper installation.

- print "# Unnecessary module 'bLuRfle' appears to be installed.\n";

  This test not coming out ok could indicate that you have in fact installed a bLuRfle.pm module or that the "eval " require \"$module_name.pm\"; "" test may give misleading results with your installation of perl. If yours is the latter case then please let the author know.

- print "# file",+($#missing == 0) ? '' : 's'," missing from installation:\n";

  One or more files turned up missing according to a run of "ExtUtils::Installed -> validate()" over your installation. Correct by conducting a proper installation.

For further information on how to conduct a proper installation consult the INSTALL file that comes with the perl source and the README file for your platform.

# AUTHOR

Peter Prymmer

2025-10-12 | perl v5.40.1