X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=dh_makeshlibs;h=ba5266b8204f02f6ac19fa66584b73315ea25e39;hb=8406a1dbd219c99c3039d66c158fb842a2fb0833;hp=66781c7e6c3715efeeba1424f2179b5f30722444;hpb=997faf950ed3e3fbb05d599ef739c9fe0aa7121d;p=debhelper.git diff --git a/dh_makeshlibs b/dh_makeshlibs index 66781c7..ba5266b 100755 --- a/dh_makeshlibs +++ b/dh_makeshlibs @@ -1,28 +1,132 @@ #!/usr/bin/perl -w -# -# Automatically generate shlibs files. +=head1 NAME + +dh_makeshlibs - automatically create shlibs file + +=cut + +use strict; use Debian::Debhelper::Dh_Lib; + +=head1 SYNOPSIS + +B [S>] [B<-m>I] [B<-V>I<[dependancies]>] [B<-n>] [B<-X>I] + +=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, B<--major=>I + +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 + +=item B<--version-info>, B<--version-info=>I + +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, B<--exclude=>I + +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 $PACKAGE (@{$dh{DOPACKAGES}}) { - $TMP=tmpdir($PACKAGE); +foreach my $package (@{$dh{DOPACKAGES}}) { + my $tmp=tmpdir($package); my %seen; + my $need_ldconfig = 0; - doit("rm", "-f", "$TMP/DEBIAN/shlibs"); + doit("rm", "-f", "$tmp/DEBIAN/shlibs"); - open (FIND, "find $TMP -xtype f -name '*.so.*' |"); + # 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' -or -name '*.so.*' \\) $exclude |"); while () { - chomp; - ($library, $major)=m#.*/(.*)\.so\.(\d*)\.?#; + my ($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"); + + if (! -d "$tmp/DEBIAN") { + doit("install","-d","$tmp/DEBIAN"); } - $deps=$PACKAGE; + my $deps=$package; if ($dh{V_FLAG_SET}) { if ($dh{V_FLAG} ne '') { $deps=$dh{V_FLAG}; @@ -30,24 +134,50 @@ foreach $PACKAGE (@{$dh{DOPACKAGES}}) { else { # Call isnative becuase it sets $dh{VERSION} # as a side effect. - isnative($PACKAGE); - $deps="$PACKAGE (>= $dh{VERSION})"; + isnative($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) && + 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"); + complex_doit("echo '$line' >>$tmp/DEBIAN/shlibs"); } } } close FIND; - if (-e "$TMP/DEBIAN/shlibs") { - doit("chmod",644,"$TMP/DEBIAN/shlibs"); - doit("chown","0.0","$TMP/DEBIAN/shlibs"); + # 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 + +This program is a part of debhelper. + +=head1 AUTHOR + +Joey Hess + +=cut