ABCL's build calls the hostname command, and needs the internet to download
JUnit. Neither of these are really required, though, so we can patch them out
to make it build.

We also remove the Implemetation-Build property that ends up in the manifest
file, because it stores information about the time of the build, which makes
it non-deterministic.

--- a/build.xml
+++ b/build.xml
@@ -338,7 +338,7 @@ from ${abcl.home.dir}
     <property name="abcl.build.path"
               value="${build.classes.dir}/org/armedbear/lisp/build"/>
     <target name="abcl.stamp" 
-            depends="abcl.compile,abcl.stamp.version,abcl.stamp.hostname">
+            depends="abcl.compile,abcl.stamp.version">
       <mkdir dir="${abcl.build.path}/.."/>
       <loadfile property="abcl.version"
                 srcFile="${abcl.version.path}"/>
@@ -479,11 +479,6 @@ Mercurial and Git.
                 value="${abcl.version}-${abcl.version.src}"/>
     </target>

-    <target name="abcl.stamp.hostname" if="unix">
-      <exec executable="hostname" outputproperty="abcl.hostname"/>
-      <echo>abcl.hostname: ${abcl.hostname}</echo>
-    </target>
-
     <target name="abcl.system.uptodate">
       <condition property="abcl.system.needs-update.p">
         <and>
@@ -524,8 +519,6 @@ Mercurial and Git.
                        value="ABCL"/>
             <attribute name="Implementation-Version"  
                        value="${abcl.version}"/>
-            <attribute name="Implementation-Build" 
-                       value="${build}"/>
           </section>
         </manifest>
         <metainf dir="${src.dir}/META-INF"> 
@@ -1050,8 +1043,7 @@ ${basedir}/../cl-bench
       </unzip>
     </target>
         
-    <target name="abcl.test.compile" 
-            depends="abcl.test.pre-compile">
+    <target name="abcl.test.compile" >
       <mkdir dir="${abcl.test.classes.dir}"/>
       <javac destdir="${abcl.test.classes.dir}"
              classpathref="abcl.test.compile.classpath"
 type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=755a6027ce9347dc21cd912c4feb65c1ed0acdf7'>root</a>/<a href='/guix/log/gnu?id=755a6027ce9347dc21cd912c4feb65c1ed0acdf7'>gnu</a>/<a href='/guix/log/gnu/packages?id=755a6027ce9347dc21cd912c4feb65c1ed0acdf7'>packages</a>/<a href='/guix/log/gnu/packages/perl-compression.scm?id=755a6027ce9347dc21cd912c4feb65c1ed0acdf7'>perl-compression.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/perl-compression.scm?id=755a6027ce9347dc21cd912c4feb65c1ed0acdf7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-02-08 23:51:18 +0100'>2019-02-08</span></td><td><a href='/guix/commit/gnu/packages/perl-compression.scm?id=1482531cd7d0f1f7e565207240affb68dd822e17'>gnu: perl-io-compress: Update to 2.084.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-02-08 23:51:17 +0100'>2019-02-08</span></td><td><a href='/guix/commit/gnu/packages/perl-compression.scm?id=b2993cb1e0b30d0ce88f37d8b20c410ba8e75a8f'>gnu: perl-compress-raw-zlib: Update to 2.084.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-02-08 23:51:16 +0100'>2019-02-08</span></td><td><a href='/guix/commit/gnu/packages/perl-compression.scm?id=a139501887ae65576a052517782af9e8b2573643'>gnu: perl-compress-raw-bzip2: Update to 2.084.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-01-14 18:12:54 +0100'>2019-01-14</span></td><td><a href='/guix/commit/gnu/packages/perl-compression.scm?id=21b41a79fe62261efd39521ab28fdde78eb3d052'>gnu: Move Perl compression packages to new module.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>