5 dh_shlibdeps - calculate shared library dependencies
11 use Debian::Debhelper::Dh_Lib;
15 B<dh_shlibdeps> [S<I<debhelper options>>] [B<-L>I<package>] [B<-l>I<directory>] [B<-X>I<item>] [S<B<--> I<params>>]
19 dh_shlibdeps is a debhelper program that is responsible for calculating
20 shared library dependencies for packages.
22 This program is merely a wrapper around L<dpkg-shlibdeps(1)> that calls it
23 once for each package listed in the control file, passing it
24 a list of ELF executables and shared libraries it has found.
30 =item B<-u>I<params>, B<--dpkg-shlibdeps-params=>I<params>
34 Pass "params" to L<dpkg-shlibdeps(1)>.
36 =item B<-X>I<item>, B<--exclude=>I<item>
38 Exclude files that contain "item" anywhere in their filename from being
39 passed to dpkg-shlibdeps. This will make their dependencies be ignored.
40 This may be useful in some situations, but use it with caution. This option
41 may be used more than once to exclude more than one thing.
43 =item B<-l>I<directory>[:directory:directory:..]
45 With recent versions of dpkg-shlibdeps, this option is generally not
48 Before dpkg-shlibdeps is run, LD_LIBRARY_PATH will have added to it the
49 specified directory (or directories -- separate with colons). With recent
50 versions of dpkg-shlibdeps, this is mostly only useful for packages that
51 build multiple flavors of the same library, or other situations where
52 the library is installed into a directory not on the regular library search
55 =item B<-L>I<package>, B<--libpackage=>I<package>
57 With recent versions of dpkg-shlibdeps, this option is generally not
58 needed, unless your package builds multiple flavors of the same library.
60 It tells dpkg-shlibdeps (via its -S parameter) to look first in the package
61 build directory for the specified package, when searching for libraries,
62 symbol files, and shlibs files.
68 Suppose that your source package produces libfoo1, libfoo-dev, and
69 libfoo-bin binary packages. libfoo-bin links against libfoo1, and should
70 depend on it. In your rules file, first run dh_makeshlibs, then dh_shlibdeps:
75 This will have the effect of generating automatically a shlibs file for
76 libfoo1, and using that file and the libfoo1 library in the
77 debian/libfoo1/usr/lib directory to calculate shared library dependency
80 If a libbar1 package is also produced, that is an alternate build of
81 libfoo, and is installed into /usr/lib/bar/, you can make libfoo-bin depend
82 on libbar1 as follows:
84 dh_shlibdeps -Llibbar1 -l/usr/lib/bar
89 "L|libpackage=s" => \$dh{LIBPACKAGE},
90 "dpkg-shlibdeps-params=s", => \$dh{U_PARAMS},
91 "l=s", => \$dh{L_PARAMS},
96 # Add to existing paths, if set.
97 push @paths, $ENV{'LD_LIBRARY_PATH'}
98 if exists $ENV{'LD_LIBRARY_PATH'};
99 foreach (split(/:/, $dh{L_PARAMS})) {
100 # Force the path absolute.
108 $dh{L_PARAMS}=join(':', @paths);
111 foreach my $package (@{$dh{DOPACKAGES}}) {
112 my $tmp=tmpdir($package);
113 my $ext=pkgext($package);
115 # dpkg-shlibdeps expects this directory to exist
116 if (! -d "$tmp/DEBIAN") {
117 doit("install","-o",0,"-g",0,"-d","$tmp/DEBIAN");
123 # Generate a list of ELF binaries in the package, ignoring any
124 # we were told to exclude.
126 if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
127 $find_options="! \\( $dh{EXCLUDE_FIND} \\)";
129 foreach my $file (split(/\n/,`find $tmp -type f \\( -perm +111 -or -name "*.so*" -or -name "*.cmxs" \\) $find_options -print`)) {
130 # Prune directories that contain separated debug symbols.
131 next if $file=~m!^\Q$tmp\E/usr/lib/debug/(lib|lib64|usr|bin|sbin|opt|dev|emul)/!;
132 # TODO this is slow, optimize. Ie, file can run once on
135 if ($ff=~m/ELF/ && $ff!~/statically linked/) {
136 push @filelist,$file;
142 if (defined $dh{LIBPACKAGE} && length $dh{LIBPACKAGE}) {
143 @opts=("-S".tmpdir($dh{LIBPACKAGE}));
146 push @opts, "-tudeb" if is_udeb($package);
148 my $ld_library_path_orig=$ENV{LD_LIBRARY_PATH};
150 $ENV{LD_LIBRARY_PATH}=$dh{L_PARAMS};
151 verbose_print("LD_LIBRARY_PATH=$dh{L_PARAMS}");
154 doit("dpkg-shlibdeps","-Tdebian/${ext}substvars",
155 @opts,@{$dh{U_PARAMS}},@filelist);
158 if (defined $ld_library_path_orig) {
159 $ENV{LD_LIBRARY_PATH}=$ld_library_path_orig;
162 delete $ENV{LD_LIBRARY_PATH};
170 L<debhelper(7)>, L<dpkg-shlibdeps(1)>
172 This program is a part of debhelper.
176 Joey Hess <joeyh@debian.org>