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
@@ -327,7 +327,7 @@ 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}"/>
@@ -455,11 +455,6 @@ from ${abcl.home.dir}
                 value="${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>
@@ -500,8 +495,6 @@ from ${abcl.home.dir}
                        value="ABCL"/>
             <attribute name="Implementation-Version"  
                        value="${abcl.implementation.version}"/>
-            <attribute name="Implementation-Build" 
-                       value="${build}"/>
           </section>
         </manifest>
         <metainf dir="${src.dir}/META-INF"> 
@@ -1019,8 +1012,7 @@ ${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"
v class='path'>path: <a href='/guix/log/?id=24b5767dad70ac07c9ced74527699e1d6d6d69e8'>root</a>/<a href='/guix/log/gnu?id=24b5767dad70ac07c9ced74527699e1d6d6d69e8'>gnu</a>/<a href='/guix/log/gnu/packages?id=24b5767dad70ac07c9ced74527699e1d6d6d69e8'>packages</a>/<a href='/guix/log/gnu/packages/tcl.scm?id=24b5767dad70ac07c9ced74527699e1d6d6d69e8'>tcl.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/tcl.scm?id=24b5767dad70ac07c9ced74527699e1d6d6d69e8&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-10-13 18:35:59 +0200'>2019-10-13</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=068d0a1c345104983a9b43f5e2cf4f7e70ab3c07'>gnu: tcl: Update home page.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-06-27 23:33:48 +0200'>2019-06-27</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=5cc1075a76392666d3d733837f5c6252b1e48002'>Merge branch 'master' into core-updates</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-06-22 17:11:27 +0200'>2019-06-22</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=a5c86aa0fbb8a9fa7f5e1b79d652df54ff83229c'>gnu: Add go-github.com-nsf-gothic.</a><span class='msg-avail'>...</span></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2019-06-22 17:10:48 +0200'>2019-06-22</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=d9d836c3231be0122355f42f52f6779d07776720'>gnu: Use license: prefix in tcl.scm.</a><span class='msg-avail'>...</span></td><td>Julien Lepiller</td></tr>