5 dh_makeshlibs - automatically create shlibs file
10 use Debian::Debhelper::Dh_Lib;
14 dh_makeshlibs [debhelper options] [-mmajor] [-V[dependancies]] [-n] [-Xitem]
18 dh_makeshlibs is a debhelper program that automatically scans for shared
19 libraries, and generates a shlibs file for the libraries it finds.
21 It also adds a call to ldconfig in the postinst and postrm scripts (in
22 DH_COMPAT=3 mode and above only) to any packages which it finds shared
29 =item B<-m>I<major>, B<--major=>I<major>
31 Instead of trying to guess the major number of the library with objdump,
32 use the major number specified after the -m parameter. This is much less
33 useful than it used to be, back in the bad old days when this program
34 looked at library filenames rather than using objdump.
36 =item B<-V>, B<-V>I<dependancies>
38 =item B<--version-info>, B<--version-info=>I<dependancies>
40 By default, the shlibs file generated by this program does not make packages
41 depend on any particular version of the package containing the shared
42 library. It may be necessary for you to add some version dependancy
43 information to the shlibs file. If -V is specified with no dependancy
44 information, the current version of the package is plugged into a
45 dependancy that looks like "packagename (>= packageversion)". If -V is specified with
46 parameters, the parameters can be used to specify the exact dependancy
47 information needed (be sure to include the package name).
49 =item B<-n>, B<--noscripts>
51 Do not modify postinst/postrm scripts.
53 =item B<-X>I<item>, B<--exclude=>I<item>
55 Exclude files that contain "item" anywhere in their filename from
56 being treated as shared libraries.
64 Assuming this is a package named libfoobar1, generates a shlibs file that
66 libfoobar 1 libfoobar1
70 Assuming the current version of the package is 1.0-3, generates a shlibs
71 file that looks something like:
72 libfoobar 1 libfoobar1 (>= 1.0-3)
74 dh_makeshlibs -V 'libfoobar1 (>= 1.0)'
76 Generates a shlibs file that looks something like:
77 libfoobar 1 libfoobar1 (>= 1.0)
83 foreach my $package (@{$dh{DOPACKAGES}}) {
84 my $tmp=tmpdir($package);
87 my $need_ldconfig = 0;
89 doit("rm", "-f", "$tmp/DEBIAN/shlibs");
91 # So, we look for files or links to existing files with names that
92 # match "*.so*". Matching *.so.* is not good enough because of
93 # broken crap like db3. And we only look at real files not
94 # symlinks, so we don't accidentually add shlibs data to -dev
95 # packages. This may have a few false positives, which is ok,
96 # because only if we can get a library name and a major number from
97 # objdump is anything actually added.
99 if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
100 $exclude="! \\( $dh{EXCLUDE_FIND} \\) ";
102 open (FIND, "find $tmp -type f -name '*.so*' $exclude |");
104 my ($library, $major);
105 my $objdump=`objdump -p $_`;
106 if ($objdump=~m/\s+SONAME\s+(.+)\.so\.(.+)/) {
107 # proper soname format
111 elsif ($objdump=~m/\s+SONAME\s+(.+)-(.+)\.so/) {
112 # idiotic crap soname format
117 if (defined($dh{M_PARAMS}) && $dh{M_PARAMS} ne '') {
118 $major=$dh{M_PARAMS};
121 if (! -d "$tmp/DEBIAN") {
122 doit("install","-d","$tmp/DEBIAN");
125 if ($dh{V_FLAG_SET}) {
126 if ($dh{V_FLAG} ne '') {
130 # Call isnative becuase it sets $dh{VERSION}
133 $deps="$package (>= $dh{VERSION})";
136 if (defined($library) && defined($major) && defined($deps) &&
137 $library ne '' && $major ne '' && $deps ne '') {
139 # Prevent duplicate lines from entering the file.
140 my $line="$library $major $deps";
141 if (! $seen{$line}) {
143 complex_doit("echo '$line' >>$tmp/DEBIAN/shlibs");
150 if (! compat(2) && ! $dh{NOSCRIPTS} && $need_ldconfig) {
151 autoscript($package,"postinst","postinst-makeshlibs");
152 autoscript($package,"postrm","postrm-makeshlibs");
155 if (-e "$tmp/DEBIAN/shlibs") {
156 doit("chmod",644,"$tmp/DEBIAN/shlibs");
157 doit("chown","0.0","$tmp/DEBIAN/shlibs");
165 This program is a part of debhelper.
169 Joey Hess <joeyh@debian.org>