Package: sbuild
Version: 0.78.1-1
Severity: important

Hi,

the members of the Freexian Extended LTS team need to be able to build packages for wheezy.

I have recently upgraded my notebook to Debian 10 (pre) and from then on it failed building packages for wheezy-lts via sbuild.

```
+------------------------------------------------------------------------------+
| Install package build dependencies |
+------------------------------------------------------------------------------+


Setup apt archive
-----------------

Merged Build-Depends: debhelper (>= 9), libpam0g-dev, libselinux1-dev, libaudit-dev, build-essential, fakeroot Filtered Build-Depends: debhelper (>= 9), libpam0g-dev, libselinux1-dev, libaudit-dev, build-essential, fakeroot dpkg-deb: building package `sbuild-build-depends-main-dummy' in `/<<RESOLVERDIR>>/apt_archive/sbuild-build-depends-main-dummy.deb'.
gzip: unrecognized option '--keep'
Try `gzip --help' for more information.
gzip failed: 256
E: cannot create dummy archive
Failed to run apt-ftparchive.
E: Setting up apt archive failed
```

I currently run a slightly patched version of sbuild (.debdiff is attached). With the below patch, I can build packages for wheezy again:

```
diff -Nru sbuild-0.78.1/debian/patches/support-gzip-in-wheezy.patch sbuild-0.78.1/debian/patches/support-gzip-in-wheezy.patch --- sbuild-0.78.1/debian/patches/support-gzip-in-wheezy.patch 1970-01-01 01:00:00.000000000 +0100 +++ sbuild-0.78.1/debian/patches/support-gzip-in-wheezy.patch 2019-04-01 11:33:06.000000000 +0200
@@ -0,0 +1,16 @@
+Description: gzip in wheezy lacks --keep option, so avoid using it.
+Author: Mike Gabriel <mike.gabr...@das-netzwerkteam.de>
+
+--- a/lib/Sbuild/ResolverBase.pm
++++ b/lib/Sbuild/ResolverBase.pm
+@@ -1445,8 +1445,8 @@
+     closedir($dh);
+ }
+
+-system('gzip', '--keep', '--force', 'Packages') == 0 or die "gzip failed: $?\n"; +-system('gzip', '--keep', '--force', 'Sources') == 0 or die "gzip failed: $?\n"; ++system('gzip -c --force Packages > Packages.gz') == 0 or die "gzip failed: $?\n"; ++system('gzip -c --force Sources > Sources.gz' ) == 0 or die "gzip failed: $?\n";
+
+ my $packages_md5 = hash_file('Packages', 'md5sum');
+ my $sources_md5 = hash_file('Sources', 'md5sum');
```

Thanks+Greets,
Mike
--

DAS-NETZWERKTEAM
c\o Technik- und Ökologiezentrum Eckernförde
Mike Gabriel, Marienthaler str. 17, 24340 Eckernförde
mobile: +49 (1520) 1976 148
landline: +49 (4354) 8390 139

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mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de

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