Changed Build-Unix.xml to check if make installed

bindings/java/build-unix.xml

@@ -27,8 +27,8 @@
         <property environment="env"/>
         <available file="./jni/.libs/libtsk_jni.dylib" property="tsk_dylib.present"/>
         <available file="./jni/.libs/libtsk_jni.so" property="tsk_so.present"/>
-        <!-- TODO: Add a check here to give a warning if none of these are found
-		<fail unless="pres" message="Run make install on The Sleuthkit."/> -->
+		<available file="./jni/.libs/libtsk_jni.a" property="present"/>
+		<fail unless="present" message="Run make install on The Sleuthkit."/>
     </target>
 
     <!-- OS X -->
@@ -47,5 +47,4 @@
         <!-- depends targets take care of the actual copying since the file differs on OS X and Linux -->
         <!-- This assumes that TSK, libewf, and zlib have been installed on the system and those libraries will be with normal loading approaches -->
     </target>
-
 </project>