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 Before dpkg-shlibdeps is run, LD_LIBRARY_PATH will have added to it the
46 specified directory (or directories -- separate with colons). This is
47 useful for multi-binary packages where a library is built in one
48 package and another package contains binaries linked against said
49 library. Relative paths will be made absolute for the benefit of
52 Note that the directory given should be the complete or relative path to
53 a directory that contains the library. See example below.
55 =item B<-L>I<package>, B<--libpackage=>I<package>
57 Use the shlibs file automatically generated by dh_makeshlibs for the named
58 package as a kind of automatically generated shlibs.local file. You can use
59 this switch in concert with the -l switch to make dpkg-shlibdeps find a
60 library built as part of the current package, and get the shlibs information.
67 Suppose that your source package produces libfoo1, libfoo-dev, and
68 libfoo-bin binary packages. libfoo-bin links against libfoo1, and should
69 depend on it. In your rules file, first run dh_makeshlibs, then dh_shlibdeps:
72 dh_shlibdeps -L libfoo1 -l debian/libfoo1/usr/lib
74 This will have the effect of generating automatically a shlibs file for
75 libfoo1, and using that file and the libfoo1 library in the
76 debian/libfoo1/usr/lib directory to calculate shared library dependency
85 # Add to existing paths, if set.
86 push @paths, $ENV{'LD_LIBRARY_PATH'}
87 if exists $ENV{'LD_LIBRARY_PATH'};
88 foreach (split(/:/, $dh{L_PARAMS})) {
89 # Force the path absolute.
94 push @paths, getcwd()."/$_";
97 $dh{L_PARAMS}=join(':', @paths);
100 foreach my $package (@{$dh{DOPACKAGES}}) {
101 my $tmp=tmpdir($package);
102 my $ext=pkgext($package);
107 # Generate a list of ELF binaries in the package, ignoring any
108 # we were told to exclude.
110 if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
111 $find_options="! \\( $dh{EXCLUDE_FIND} \\)";
113 foreach my $file (split(/\n/,`find $tmp -path $tmp/usr/lib/debug -prune -or -type f \\( -perm +111 -or -name "*.so*" \\) $find_options -print`)) {
114 # TODO this is slow, optimize. Ie, file can run once on
117 if ($ff=~m/ELF/ && $ff!~/statically linked/) {
118 push @filelist,$file;
124 if (defined $dh{LIBPACKAGE} && length $dh{LIBPACKAGE}) {
125 @opts=("-L".tmpdir($dh{LIBPACKAGE}."/DEBIAN/shlibs"));
128 my $ld_library_path_orig=$ENV{LD_LIBRARY_PATH};
130 $ENV{LD_LIBRARY_PATH}=$dh{L_PARAMS};
131 verbose_print("LD_LIBRARY_PATH=$dh{L_PARAMS}");
134 doit("dpkg-shlibdeps","-Tdebian/${ext}substvars",
135 @opts,@{$dh{U_PARAMS}},@filelist);
138 if (defined $ld_library_path_orig) {
139 $ENV{LD_LIBRARY_PATH}=$ld_library_path_orig;
142 delete $ENV{LD_LIBRARY_PATH};
150 L<debhelper(7)>, L<dpkg-shlibdeps(1)>
152 This program is a part of debhelper.
156 Joey Hess <joeyh@debian.org>