tla2tools comes packaged with three separate javax.mail JARs, which it
expects to be available to include in the JAR produced by the `dist' target.
However, the `java-javax-mail' packaged with Guix contains all of these
dependencies in a single JAR, so the other two are unneeded.  This patch
removes references to them.

The JAR also was expected to contain classes that are built as part of the
test suite.  That does not seem useful, nor is it available during the
`compile' phase, so that portion is removed.

There are a number of Git attributes that are set in the final manifest.
The branch name is kept, but the others are removed.  The build user is set
statically to "guix".

Finally, since we already have a patch, two targets `jar' and `check' are
added to satisfy `ant-build-system' and keep the package definition more
lean.

diff --git a/tlatools/org.lamport.tlatools/customBuild.xml b/tlatools/org.lamport.tlatools/customBuild.xml
index f0ba77cb7..748e60d95 100644
--- a/tlatools/org.lamport.tlatools/customBuild.xml
+++ b/tlatools/org.lamport.tlatools/customBuild.xml
@@ -36,6 +36,17 @@
 		<istrue value="${maven.test.halt}"/>
 	</condition>
 
+  <!-- `jar' and `check' added for Guix -->
+  <target name="jar">
+		<antcall target="compile" inheritall="true" inheritrefs="true" />
+		<antcall target="compile-aj" inheritall="true" inheritrefs="true" />
+		<antcall target="dist" inheritall="true" inheritrefs="true" />
+  </target>
+  <target name="check">
+		<antcall target="compile-test" inheritall="true" inheritrefs="true" />
+		<antcall target="test" inheritall="true" inheritrefs="true" />
+  </target>
+
 	<!-- https://github.com/alx3apps/jgit-buildnumber -->
 	<target name="git-revision">
 	    <taskdef name="jgit-buildnumber" classname="ru.concerteza.util.buildnumber.JGitBuildNumberAntTask">
@@ -217,17 +228,7 @@
 				<exclude name="javax/mail/search/**"/>
 			</patternset>
 		</unzip>
-		<unzip src="lib/javax.mail/smtp-1.6.3.jar" dest="${class.dir}">
-			<patternset>
-		        <include name="**/*.class"/>
-			</patternset>
-		</unzip>
-		<unzip src="lib/javax.mail/javax.activation_1.1.0.v201211130549.jar" dest="${class.dir}">
-			<patternset>
-		        <include name="**/*.class"/>
-				<exclude name="org/**"/>
-			</patternset>
-		</unzip>
+		<mkdir dir="${class.dir}/META-INF" />
 		<touch file="${class.dir}/META-INF/javamail.default.address.map"/>
 		<unzip src="lib/jline/jline-terminal-3.14.1.jar" dest="${class.dir}">
 			<patternset>
@@ -259,17 +260,7 @@
 				<exclude name="javax/mail/search/**"/>
 			</patternset>
 		</unzip>
-		<unzip src="lib/javax.mail/smtp-1.6.3.jar" dest="target/classes">
-			<patternset>
-		        <include name="**/*.class"/>
-			</patternset>
-		</unzip>
-		<unzip src="lib/javax.mail/javax.activation_1.1.0.v201211130549.jar" dest="target/classes">
-			<patternset>
-		        <include name="**/*.class"/>
-				<exclude name="org/**"/>
-			</patternset>
-		</unzip>
+		<mkdir dir="target/classes/META-INF" />
 		<touch file="target/classes/META-INF/javamail.default.address.map"/>
 
 		<unzip src="lib/jline/jline-terminal-3.14.1.jar" dest="target/classes">
@@ -373,14 +364,8 @@
 					src/tla2sany/parser/Token.09-09-07,
 					src/tla2sany/parser/TokenMgrError.09-09-07"/>
 			<fileset dir="${doc.dir}" includes="License.txt"/>
-			<fileset dir="${test.class.dir}">
-				<include name="**/tlc2/tool/CommonTestCase*.class" />
-				<include name="**/tlc2/tool/liveness/ModelCheckerTestCase*.class" />
-				<include name="**/tlc2/TestMPRecorder*.class" />
-				<include name="**/util/IsolatedTestCaseRunner*.class" />
-			</fileset>
 			<manifest>
-				<attribute name="Built-By" value="${user.name}" />
+				<attribute name="Built-By" value="guix" />
 				<attribute name="Build-Tag" value="${env.BUILD_TAG}" />
 				<attribute name="Build-Rev" value="${Build-Rev}" />
 				<attribute name="Implementation-Title" value="TLA+ Tools" />
@@ -389,14 +374,8 @@
 				<!-- The jar files contains many main classes (SANY, TEX, pcal, ...) --> 
                 <!-- but lets consider TLC the one users primarily use. --> 
 				<attribute name="Main-class" value="tlc2.TLC" />
-				<attribute name="Class-Path" value="CommunityModules-deps.jar CommunityModules.jar" />
 				<!-- Git revision -->
-				<attribute name="X-Git-Branch" value="${git.branch}" />
 				<attribute name="X-Git-Tag" value="${git.tag}" />
-				<attribute name="X-Git-Revision" value="${git.revision}" />
-				<attribute name="X-Git-ShortRevision" value="${git.shortRevision}" />
-				<attribute name="X-Git-BuildNumber" value="${git.branch}_${git.tag}_${git.shortRevision}" />
-				<attribute name="X-Git-Commits-Count" value="${git.commitsCount}" />
 				<!-- App-Name and Permissions is required by Java Webstart used by distributed TLC -->
 				<!-- Depending on security level, the user will see a warning otherwise. -->
 				<!-- http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/security/manifest.html -->