diff --git a/eclipse.platform.releng.prereqs.sdk/eclipse-sdk-prereqs.target b/eclipse.platform.releng.prereqs.sdk/eclipse-sdk-prereqs.target
index b26d41de1a9..5b839a0f0f2 100644
--- a/eclipse.platform.releng.prereqs.sdk/eclipse-sdk-prereqs.target
+++ b/eclipse.platform.releng.prereqs.sdk/eclipse-sdk-prereqs.target
@@ -2,43 +2,31 @@
 <?pde version="3.8"?>
 <target name="eclipse-sdk-prereqs">
   <locations>
-    <location includeAllPlatforms="true" includeMode="slicer" type="InstallableUnit">
+    <location includeAllPlatforms="true" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
 
       <unit id="com.jcraft.jsch" version="0.1.55.v20230916-1400"/>
-      <unit id="com.jcraft.jsch.source" version="0.1.55.v20230916-1400"/>
 
       <unit id="org.apache.ant" version="1.10.15.v20240901-1000"/>
-      <unit id="org.apache.ant.source" version="1.10.15.v20240901-1000"/>
 
       <unit id="org.apache.batik.css" version="1.18.0.v20241009-1200"/>
       <unit id="org.apache.batik.util" version="1.18.0.v20241009-1200"/>
       <unit id="org.apache.batik.i18n" version="1.18.0.v20241009-1200"/>
       <unit id="org.apache.batik.constants" version="1.18.0.v20241009-1200"/>
-      <unit id="org.apache.batik.css.source" version="1.18.0.v20241009-1200"/>
-      <unit id="org.apache.batik.util.source" version="1.18.0.v20241009-1200"/>
-      <unit id="org.apache.batik.i18n.source" version="1.18.0.v20241009-1200"/>
-      <unit id="org.apache.batik.constants.source" version="1.18.0.v20241009-1200"/>
 
       <unit id="org.apache.xmlgraphics" version="2.10.0.v20241009-1200"/>
-      <unit id="org.apache.xmlgraphics.source" version="2.10.0.v20241009-1200"/>
 
       <!-- needed because org.eclipse.jdt.feature.group  includes it, but it should include org.hamcrest (direct-from-maven) instead --> 
       <unit id="org.junit" version="4.13.2.v20240929-1000"/>
-      <unit id="org.junit.source" version="4.13.2.v20240929-1000"/>
 
       <unit id="org.apache.lucene.core" version="10.1.0.v20241221-1000"/>
       <unit id="org.apache.lucene.analysis-smartcn" version="10.1.0.v20241221-1000"/>
       <unit id="org.apache.lucene.analysis-common" version="10.1.0.v20241221-1000"/>
-      <unit id="org.apache.lucene.core.source" version="10.1.0.v20241221-1000"/>
-      <unit id="org.apache.lucene.analysis-smartcn.source" version="10.1.0.v20241221-1000"/>
-      <unit id="org.apache.lucene.analysis-common.source" version="10.1.0.v20241221-1000"/>
 
       <!-- This version contains with notarized *.jnilib -->
       <unit id="com.sun.jna" version="5.16.0.v20241222-1200"/>
 
       <!-- Batik dependencies -->
       <unit id="org.eclipse.orbit.xml-apis-ext" version="1.0.0.v20240917-0534"/>
-      <unit id="org.eclipse.orbit.xml-apis-ext.source" version="1.0.0.v20240917-0534"/>
 
       <!-- Markdown support for JEP 467 -->
       <unit id="org.commonmark" version="0.24.0.v20241021-1700"/>
@@ -48,7 +36,7 @@
       <repository location="https://download.eclipse.org/tools/orbit/simrel/orbit-aggregation/milestone/S202501230659"/>
     </location>
 
-    <location includeAllPlatforms="true" includeMode="slicer" type="InstallableUnit">
+    <location includeAllPlatforms="true" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
        <!-- Check version in "<EMF>/features" directory -->
       <unit id="org.eclipse.emf.common.feature.group" version="2.34.0.v20241204-1554"/>
       <unit id="org.eclipse.emf.common.source.feature.group" version="2.34.0.v20241204-1554"/>
@@ -65,7 +53,7 @@
       <repository location="https://download.eclipse.org/modeling/emf/emf/builds/milestone/S202412300906"/>
     </location>
 
-    <location includeAllPlatforms="true" includeMode="slicer" type="InstallableUnit">
+    <location includeAllPlatforms="true" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
       <unit id="org.eclipse.ecf.core.feature.feature.group" version="1.7.0.v20250111-0100"/>
       <unit id="org.eclipse.ecf.core.feature.source.feature.group" version="1.7.0.v20250111-0100"/>
       <unit id="org.eclipse.ecf.filetransfer.feature.feature.group" version="3.15.0.v20250115-0406"/>
@@ -77,7 +65,7 @@
       <repository location="https://download.eclipse.org/rt/ecf/3.15.5/site.p2/3.15.5.v20250124-1843"/>
     </location>
 
-    <location includeAllPlatforms="true" includeMode="slicer" type="InstallableUnit">
+    <location includeAllPlatforms="true" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
       <unit id="org.eclipse.license.feature.group" version="2.0.2.v20181016-2210"/>
       <repository location="https://download.eclipse.org/cbi/updates/license/2.0.2.v20181016-2210"/>
     </location>