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to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
85 lines
2.1 KiB
Perl
85 lines
2.1 KiB
Perl
#
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#//===----------------------------------------------------------------------===//
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#//
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#// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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#// See https://llvm.org/LICENSE.txt for license information.
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#// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#//
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#//===----------------------------------------------------------------------===//
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#
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package LibOMP;
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use strict;
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use warnings;
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use tools;
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sub empty($) {
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my ( $var ) = @_;
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return (not exists($ENV{$var})) or (not defined($ENV{$var})) or ($ENV{$var} eq "");
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}; # sub empty
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my ( $base, $out, $tmp );
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if ( empty( "LIBOMP_WORK" ) ) {
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# $FindBin::Bin is not used intentionally because it gives real path. I want to use absolute,
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# but not real one (real path does not contain symlinks while absolute path may contain
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# symlinks).
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$base = get_dir( get_dir( abs_path( $0 ) ) );
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} else {
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$base = abs_path( $ENV{ LIBOMP_WORK } );
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}; # if
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if ( empty( "LIBOMP_EXPORTS" ) ) {
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$out = cat_dir( $base, "exports" );
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} else {
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$out = abs_path( $ENV{ LIBOMP_EXPORTS } );
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}; # if
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if ( empty( "LIBOMP_TMP" ) ) {
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$tmp = cat_dir( $base, "tmp" );
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} else {
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$tmp = abs_path( $ENV{ LIBOMP_TMP } );
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}; # if
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$ENV{ LIBOMP_WORK } = $base;
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$ENV{ LIBOMP_EXPORTS } = $out;
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$ENV{ LIBOMP_TMP } = $tmp;
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return 1;
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__END__
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=pod
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=head1 NAME
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B<LibOMP.pm> --
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=head1 SYNOPSIS
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use FindBin;
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use lib "$FindBin::Bin/lib";
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use LibOMP;
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$ENV{ LIBOMP_WORK }
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$ENV{ LIBOMP_TMP }
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$ENV{ LIBOMP_EXPORTS }
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=head1 DESCRIPTION
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The module checks C<LIBOMP_WORK>, C<LIBOMP_EXPORTS>, and C<LIBOMP_TMP> environments variables.
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If a variable set, the module makes sure it is absolute. If a variable does not exist, the module
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sets it to default value.
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Default value for C<LIBOMP_EXPORTS> is C<$LIBOMP_WORK/exports>, for C<LIBOMP_TMP> --
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C<$LIBOMP_WORK/tmp>.
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Value for C<LIBOMP_WORK> is guessed. The module assumes the script (which uses the module) is
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located in C<tools/> directory of libomp directory tree, and uses path of the script to calculate
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C<LIBOMP_WORK>,
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=cut
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# end of file #
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