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-#!/usr/bin/perl -w
-
-=head1 NAME
-
-dh_makeshlibs - automatically create shlibs file
-
-=cut
-
-use strict;
-use Debian::Debhelper::Dh_Lib;
-
-=head1 SYNOPSIS
-
-B<dh_makeshlibs> [S<I<debhelper options>>] [B<-m>I<major>] [B<-V>I<[dependancies]>] [B<-n>] [B<-X>I<item>]
-
-=head1 DESCRIPTION
-
-dh_makeshlibs is a debhelper program that automatically scans for shared
-libraries, and generates a shlibs file for the libraries it finds.
-
-It also adds a call to ldconfig in the postinst and postrm scripts (in
-V3 mode and above only) to any packages which it finds shared libraries in.
-
-=head1 OPTIONS
-
-=over 4
-
-=item B<-m>I<major>, B<--major=>I<major>
-
-Instead of trying to guess the major number of the library with objdump,
-use the major number specified after the -m parameter. This is much less
-useful than it used to be, back in the bad old days when this program
-looked at library filenames rather than using objdump.
-
-=item B<-V>, B<-V>I<dependancies>
-
-=item B<--version-info>, B<--version-info=>I<dependancies>
-
-By default, the shlibs file generated by this program does not make packages
-depend on any particular version of the package containing the shared
-library. It may be necessary for you to add some version dependancy
-information to the shlibs file. If -V is specified with no dependancy
-information, the current version of the package is plugged into a
-dependancy that looks like "packagename (>= packageversion)". If -V is
-specified with parameters, the parameters can be used to specify the exact
-dependancy information needed (be sure to include the package name).
-
-Beware of using -V without any parameters; this is a conservative setting
-that always ensures that other packages' shared library dependencies are at
-least as tight as they need to be, so that if the maintainer screws up then
-they won't break. The flip side is that packages might end up with
-dependencies that are too tight and so find it harder to be upgraded.
-
-=item B<-n>, B<--noscripts>
-
-Do not modify postinst/postrm scripts.
-
-=item B<-X>I<item>, B<--exclude=>I<item>
-
-Exclude files that contain "item" anywhere in their filename or directory
-from being treated as shared libraries.
-
-=back
-
-=head1 EXAMPLES
-
- dh_makeshlibs
-
-Assuming this is a package named libfoobar1, generates a shlibs file that
-looks something like:
- libfoobar 1 libfoobar1
-
- dh_makeshlibs -V
-
-Assuming the current version of the package is 1.0-3, generates a shlibs
-file that looks something like:
- libfoobar 1 libfoobar1 (>= 1.0-3)
-
- dh_makeshlibs -V 'libfoobar1 (>= 1.0)'
-
-Generates a shlibs file that looks something like:
- libfoobar 1 libfoobar1 (>= 1.0)
-
-=cut
-
-init();
-
-foreach my $package (@{$dh{DOPACKAGES}}) {
- my $tmp=tmpdir($package);
-
- my %seen;
- my $need_ldconfig = 0;
-
- doit("rm", "-f", "$tmp/DEBIAN/shlibs");
-
- # So, we look for files or links to existing files with names that
- # match "*.so*". Matching *.so.* is not good enough because of
- # broken crap like db3. And we only look at real files not
- # symlinks, so we don't accidentually add shlibs data to -dev
- # packages. This may have a few false positives, which is ok,
- # because only if we can get a library name and a major number from
- # objdump is anything actually added.
- my $exclude='';
- if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
- $exclude="! \\( $dh{EXCLUDE_FIND} \\) ";
- }
- open (FIND, "find $tmp -type f -name '*.so*' $exclude |");
- while (<FIND>) {
- my ($library, $major);
- my $objdump=`objdump -p $_`;
- if ($objdump=~m/\s+SONAME\s+(.+)\.so\.(.+)/) {
- # proper soname format
- $library=$1;
- $major=$2;
- }
- elsif ($objdump=~m/\s+SONAME\s+(.+)-(.+)\.so/) {
- # idiotic crap soname format
- $library=$1;
- $major=$2;
- }
-
- if (defined($dh{M_PARAMS}) && $dh{M_PARAMS} ne '') {
- $major=$dh{M_PARAMS};
- }
-
- if (! -d "$tmp/DEBIAN") {
- doit("install","-d","$tmp/DEBIAN");
- }
- my $deps=$package;
- if ($dh{V_FLAG_SET}) {
- if ($dh{V_FLAG} ne '') {
- $deps=$dh{V_FLAG};
- }
- else {
- # Call isnative becuase it sets $dh{VERSION}
- # as a side effect.
- isnative($package);
- my $version = $dh{VERSION};
- # Old compatability levels include the
- # debian revision, while new do not.
- if (! compat(3)) {
- # Remove debian version, if any.
- $version =~ s/-[^-]+$//;
- }
- $deps="$package (>= $version)";
- }
- }
- if (defined($library) && defined($major) && defined($deps) &&
- $library ne '' && $major ne '' && $deps ne '') {
- $need_ldconfig=1;
- # Prevent duplicate lines from entering the file.
- my $line="$library $major $deps";
- if (! $seen{$line}) {
- $seen{$line}=1;
- complex_doit("echo '$line' >>$tmp/DEBIAN/shlibs");
- }
- }
- }
- close FIND;
-
- # New as of dh_v3.
- if (! compat(2) && ! $dh{NOSCRIPTS} && $need_ldconfig) {
- autoscript($package,"postinst","postinst-makeshlibs");
- autoscript($package,"postrm","postrm-makeshlibs");
- }
-
- if (-e "$tmp/DEBIAN/shlibs") {
- doit("chmod",644,"$tmp/DEBIAN/shlibs");
- doit("chown","0.0","$tmp/DEBIAN/shlibs");
- }
-}
-
-=head1 SEE ALSO
-
-L<debhelper(7)>
-
-This program is a part of debhelper.
-
-=head1 AUTHOR
-
-Joey Hess <joeyh@debian.org>
-
-=cut