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|
#!/usr/bin/perl -w
=head1 NAME
dh_shlibdeps - calculate shared library dependancies
=cut
use strict;
use Cwd;
use Debian::Debhelper::Dh_Lib;
=head1 SYNOPSIS
dh_shlibdeps [debhelper options] [-ldirectory] [-Xitem] [-- params]
=head1 DESCRIPTION
dh_shlibdeps is a debhelper program that is responsible for calculating
shared library dependancies for packages.
This program is merely a wrapper around L<dpkg-shlibdeps(1)> that calls it
once for each package listed in the control file, passing it
a list of ELF executables and shared libraries it has found.
=head1 OPTIONS
=over 4
=item B<-u>I<params>, B<--dpkg-shlibdeps-params=>I<params>
=item B<--> I<params>
Pass "params" to L<dpkg-shlibdeps(1)>.
=item B<-X>I<item>, B<--exclude=>I<item>
Exclude files that contain "item" anywhere in their filename from being
passed to dpkg-shlibdeps. This will make their dependancies be ignored.
This may be useful in some situations, but use it with caution. This option
may be used more than once to exclude more than one thing.
=item B<-l>I<directory>
Before dpkg-shlibdeps is run, LD_LIBRARY_PATH will be set to the specified
directory. This is useful for multi-binary packages where a library
is built in one package and another package contains binaries linked
against said library. Relative paths will be made absolute for the
benefit of dpkg-shlibdeps.
=back
=cut
init();
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmp=tmpdir($package);
my $ext=pkgext($package);
my @filelist;
my $ff;
# Generate a list of ELF binaries in the package, ignoring any
# we were told to exclude.
my $find_options='';
if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
$find_options="! \\( $dh{EXCLUDE_FIND} \\)";
}
foreach my $file (split(/\n/,`find $tmp -type f \\( -perm +111 -or -name "*.so*" \\) $find_options`)) {
# TODO: this is slow, optimize. Ie, file can run once on multiple files..
$ff=`file "$file"`;
if ($ff=~m/ELF/ && $ff!~/statically linked/) {
push @filelist,$file;
}
}
if (@filelist) {
if ($dh{L_PARAMS}) {
# Force the path absolute.
unless ($dh{L_PARAMS}=~m:^/:) {
$dh{L_PARAMS}=getcwd()."/$dh{L_PARAMS}";
}
$ENV{'LD_LIBRARY_PATH'}=$dh{L_PARAMS};
verbose_print("LD_LIBRARY_PATH=$dh{L_PARAMS} \\");
}
doit("dpkg-shlibdeps","-Tdebian/${ext}substvars",@{$dh{U_PARAMS}},'-dDepends',@filelist);
}
}
=head1 SEE ALSO
L<debhelper(1)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut
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