/usr/bin/dh_shlibdeps is in debhelper 9.20150101+deb8u2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | #!/usr/bin/perl -w
=head1 NAME
dh_shlibdeps - calculate shared library dependencies
=cut
use strict;
use Cwd;
use Debian::Debhelper::Dh_Lib;
=head1 SYNOPSIS
B<dh_shlibdeps> [S<I<debhelper options>>] [B<-L>I<package>] [B<-l>I<directory>] [B<-X>I<item>] [S<B<--> I<params>>]
=head1 DESCRIPTION
B<dh_shlibdeps> is a debhelper program that is responsible for calculating
shared library dependencies for packages.
This program is merely a wrapper around L<dpkg-shlibdeps(1)> that calls it
once for each package listed in the F<control> file, passing it
a list of ELF executables and shared libraries it has found.
=head1 OPTIONS
=over 4
=item B<-X>I<item>, B<--exclude=>I<item>
Exclude files that contain F<item> anywhere in their filename from being
passed to B<dpkg-shlibdeps>. This will make their dependencies 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<--> I<params>
Pass I<params> to L<dpkg-shlibdeps(1)>.
=item B<-u>I<params>, B<--dpkg-shlibdeps-params=>I<params>
This is another way to pass I<params> to L<dpkg-shlibdeps(1)>.
It is deprecated; use B<--> instead.
=item B<-l>I<directory>[B<:>I<directory> ...]
With recent versions of B<dpkg-shlibdeps>, this option is generally not
needed.
It tells B<dpkg-shlibdeps> (via its B<-l> parameter), to look for private
package libraries in the specified directory (or directories -- separate
with colons). With recent
versions of B<dpkg-shlibdeps>, this is mostly only useful for packages that
build multiple flavors of the same library, or other situations where
the library is installed into a directory not on the regular library search
path.
=item B<-L>I<package>, B<--libpackage=>I<package>
With recent versions of B<dpkg-shlibdeps>, this option is generally not
needed, unless your package builds multiple flavors of the same library.
It tells B<dpkg-shlibdeps> (via its B<-S> parameter) to look first in the package
build directory for the specified package, when searching for libraries,
symbol files, and shlibs files.
=back
=head1 EXAMPLES
Suppose that your source package produces libfoo1, libfoo-dev, and
libfoo-bin binary packages. libfoo-bin links against libfoo1, and should
depend on it. In your rules file, first run B<dh_makeshlibs>, then B<dh_shlibdeps>:
dh_makeshlibs
dh_shlibdeps
This will have the effect of generating automatically a shlibs file for
libfoo1, and using that file and the libfoo1 library in the
F<debian/libfoo1/usr/lib> directory to calculate shared library dependency
information.
If a libbar1 package is also produced, that is an alternate build of
libfoo, and is installed into F</usr/lib/bar/>, you can make libfoo-bin depend
on libbar1 as follows:
dh_shlibdeps -Llibbar1 -l/usr/lib/bar
=cut
init(options => {
"L|libpackage=s" => \$dh{LIBPACKAGE},
"dpkg-shlibdeps-params=s", => \$dh{U_PARAMS},
"l=s", => \$dh{L_PARAMS},
});
if (defined $dh{V_FLAG}) {
warning("You probably wanted to pass -V to dh_makeshlibs, it has no effect on dh_shlibdeps");
}
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmp=tmpdir($package);
my $ext=pkgext($package);
# dpkg-shlibdeps expects this directory to exist
if (! -d "$tmp/DEBIAN") {
doit("install","-o",0,"-g",0,"-d","$tmp/DEBIAN");
}
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*" -or -name "*.cmxs" \\) $find_options -print`)) {
# Prune directories that contain separated debug symbols.
next if $file=~m!^\Q$tmp\E/usr/lib/debug/(lib|lib64|usr|bin|sbin|opt|dev|emul)/!;
# 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) {
my @opts;
if (defined $dh{LIBPACKAGE} && length $dh{LIBPACKAGE}) {
@opts=("-S".tmpdir($dh{LIBPACKAGE}));
}
push @opts, "-tudeb" if is_udeb($package);
if ($dh{L_PARAMS}) {
foreach (split(/:/, $dh{L_PARAMS})) {
# Force the path absolute.
my $libdir = m:^/: ? $_ : "/$_";
push @opts, "-l$libdir";
}
}
doit("dpkg-shlibdeps","-Tdebian/${ext}substvars",
@opts,@{$dh{U_PARAMS}},@filelist);
}
}
=head1 SEE ALSO
L<debhelper(7)>, L<dpkg-shlibdeps(1)>
This program is a part of debhelper.
=head1 AUTHOR
Joey Hess <joeyh@debian.org>
=cut
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