From 4d07c3dac6fee9afa1c3eb3ab246c339a703f740 Mon Sep 17 00:00:00 2001
From: Lukas Rytz <lukas.rytz@epfl.ch>
Date: Fri, 9 May 2008 14:20:54 +0000
Subject: changed copying of .net / jvm14 libraries.

---
 build.xml                           |  6 ++++--
 src/build/four.xml                  | 32 +++++++++++++++++++++++++------
 src/build/msil.xml                  | 38 ++++++++++++++++++++++++++++---------
 src/dotnet-library/scala/List.scala |  2 +-
 4 files changed, 60 insertions(+), 18 deletions(-)

diff --git a/build.xml b/build.xml
index 329648267b..e3fc55e28e 100644
--- a/build.xml
+++ b/build.xml
@@ -1015,11 +1015,13 @@ FORWARDED TARGETS FOR PACKAGING
     <ant antfile="${src.dir}/build/pack.xml" target="pack-all.done" inheritall="yes" inheritrefs="yes"/>
   </target>
   
-  <target name="fourdistpack" depends="fourdist">
+  <target name="fourdistpack" depends="pack.done">
+    <ant antfile="${src.dir}/build/four.xml" target="four-dist.done" inheritall="yes" inheritrefs="yes"/>
     <ant antfile="${src.dir}/build/pack.xml" target="fourpack-all.done" inheritall="yes" inheritrefs="yes"/>
   </target>
 
-  <target name="msildistpack" depends="msildist">
+  <target name="msildistpack" depends="pack.done">
+    <ant antfile="${src.dir}/build/msil.xml" target="msil-dist.done" inheritall="yes" inheritrefs="yes"/>
     <ant antfile="${src.dir}/build/pack.xml" target="msilpack-all.done" inheritall="yes" inheritrefs="yes"/>
   </target>
 
diff --git a/src/build/four.xml b/src/build/four.xml
index 6e31124203..6dd92f34f4 100644
--- a/src/build/four.xml
+++ b/src/build/four.xml
@@ -21,17 +21,37 @@ PROPERTIES
 <!-- ===========================================================================
 JAVA 1.4 LIBRARY AND COMPILER BUILD (FOUR)
 ============================================================================ -->
-  
+
   <target name="four.start"/>
-  
+
   <target name="four.src" depends="four.start">
+    <!-- simple sync & copy overwrite is not very nice, because overwritten files
+         will then have a new timestamp, and be recompiled -->
     <mkdir dir="${build-four-src.dir}"/>
-    <sync todir="${build-four-src.dir}">
-      <fileset dir="${src.dir}/library"/>
-    </sync>
     <copy todir="${build-four-src.dir}" overwrite="true">
-      <fileset dir="${src.dir}/jvm14-library"/>
+      <fileset dir="${src.dir}/library">
+        <and>
+          <present present="srconly" targetdir="${src.dir}/jvm14-library"/>
+          <different targetdir="${build-four-src.dir}" ignoreFileTimes="true"/>
+        </and>
+      </fileset>
+      <fileset dir="${src.dir}/jvm14-library">
+        <different targetdir="${build-four-src.dir}" ignoreFileTimes="true"/>
+      </fileset>
     </copy>
+    <delete verbose="true">
+      <difference>
+        <fileset dir="${build-four-src.dir}"/>
+        <union>
+          <fileset dir="${build-four-src.dir}">
+            <present targetdir="${src.dir}/jvm14-library"/>
+          </fileset>
+          <fileset dir="${build-four-src.dir}">
+            <present targetdir="${src.dir}/library"/>
+          </fileset>
+        </union>
+      </difference>
+    </delete>
   </target>
 
   <target name="four.lib" depends="four.src">
diff --git a/src/build/msil.xml b/src/build/msil.xml
index 9167908304..a5e179e57b 100644
--- a/src/build/msil.xml
+++ b/src/build/msil.xml
@@ -6,11 +6,12 @@
     SuperSabbus extension for the MSIL library targeted for the dotnet framework. THIS FILE IS NOT STAND-ALONE AND SHOULD ONLY BE USED THROUGH ENTRY POINTS IN SUPERSABBUS.
   </description>
 
-  <!-- TODO: run test suite (or at least a part of it) on .NET -->
-  <!-- TODO: generate sbaz package scala-msil -->
   <!-- TODO: test / make it work on Windows (use <ilasm/> task) -->
-  <!-- TODO: (?) generate the runner scripts with scala.tools.ant.ScalaTool -->
+  <!-- TODO: for separate compilation: make sure only files that have been changed
+             since last run are re-compiled -->
+  <!-- TODO: run test suite (or at least a part of it) on .NET -->
   <!-- TODO: generate scaladoc of .NET library -->
+  <!-- TODO: (?) generate the runner scripts with scala.tools.ant.ScalaTool -->
 
 <!-- ===========================================================================
 PROPERTIES
@@ -95,13 +96,33 @@ MSIL BUILD
   <target name="msil.start" depends="msil.init"/>
 
   <target name="msil.src" depends="msil.start">
+    <!-- simple sync & copy overwrite is not very nice, because overwritten files
+         will then have a new timestamp, and be recompiled -->
     <mkdir dir="${build-msil-src.dir}"/>
-    <sync todir="${build-msil-src.dir}">
-      <fileset dir="${src.dir}/library"/>
-    </sync>
     <copy todir="${build-msil-src.dir}" overwrite="true">
-      <fileset dir="${src.dir}/dotnet-library"/>
+      <fileset dir="${src.dir}/library">
+        <and>
+          <present present="srconly" targetdir="${src.dir}/dotnet-library"/>
+          <different targetdir="${build-msil-src.dir}" ignoreFileTimes="true"/>
+        </and>
+      </fileset>
+      <fileset dir="${src.dir}/dotnet-library">
+        <different targetdir="${build-msil-src.dir}" ignoreFileTimes="true"/>
+      </fileset>
     </copy>
+    <delete verbose="true">
+      <difference>
+        <fileset dir="${build-msil-src.dir}"/>
+        <union>
+          <fileset dir="${build-msil-src.dir}">
+            <present targetdir="${src.dir}/dotnet-library"/>
+          </fileset>
+          <fileset dir="${build-msil-src.dir}">
+            <present targetdir="${src.dir}/library"/>
+          </fileset>
+        </union>
+      </difference>
+    </delete>
   </target>
 
   <target name="msil.lib" depends="msil.src">
@@ -113,8 +134,7 @@ MSIL BUILD
         srcdir="${build-msil-src.dir}"
         destdir="${build-msil.dir}/library"
         target="msil"
-        assemname="predef" assemrefs="${lib.dir}"
-        failonerror="false">
+        assemname="predef" assemrefs="${lib.dir}">
       <include name="**/*.scala"/>
       <exclude name="scala/ScalaObject.scala"/>
     </scalac>
diff --git a/src/dotnet-library/scala/List.scala b/src/dotnet-library/scala/List.scala
index 28228cc2f8..dea3a9a255 100644
--- a/src/dotnet-library/scala/List.scala
+++ b/src/dotnet-library/scala/List.scala
@@ -450,7 +450,7 @@ sealed abstract class List[+A] extends Seq[A] {
    *  @param x the element to append.
    *  @return  the list with <code>x</code> added at the end.
    */
-  def +[B >: A](x: B): List[B] =
+  override def +[B >: A](x: B): List[B] =
     if (isEmpty) List(x)
     else {
       val buf = new ListBuffer[B]
-- 
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