Try building only one e4 SDK
diff --git a/org.eclipse.e4.builder/builder/general/customTargets.xml b/org.eclipse.e4.builder/builder/general/customTargets.xml
index 8749cb5..8f24e76 100644
--- a/org.eclipse.e4.builder/builder/general/customTargets.xml
+++ b/org.eclipse.e4.builder/builder/general/customTargets.xml
@@ -227,20 +227,8 @@
 		<mkdir dir="${p2.output.base}" />
 		<property name="directorlog" value="${buildlogs}/director.txt" />
 
-		<property name="p2.sdk.install.win32.win32.x86" value="${p2.output.base}/sdk.install.win32.win32.x86" />
-		<mkdir dir="${p2.sdk.install.win32.win32.x86}" />
-		<property name="p2.sdk.install.win32.win32.x86_64" value="${p2.output.base}/sdk.install.win32.win32.x86_64" />
-		<mkdir dir="${p2.sdk.install.win32.win32.x86_64}" />
-		<property name="p2.sdk.install.linux.gtk.x86" value="${p2.output.base}/sdk.install.linux.gtk.x86" />
-		<mkdir dir="${p2.sdk.install.linux.gtk.x86}" />
-		<property name="p2.sdk.install.linux.gtk.x86_64" value="${p2.output.base}/sdk.install.linux.gtk.x86_64" />
-		<mkdir dir="${p2.sdk.install.linux.gtk.x86_64}" />
 		<property name="p2.sdk.install.linux.gtk.ppc" value="${p2.output.base}/sdk.install.linux.gtk.ppc" />
 		<mkdir dir="${p2.sdk.install.linux.gtk.ppc}" />
-		<property name="p2.sdk.install.macosx.cocoa.x86" value="${p2.output.base}/sdk.install.macosx.cocoa.x86" />
-		<mkdir dir="${p2.sdk.install.macosx.cocoa.x86}" />
-		<property name="p2.sdk.install.macosx.cocoa.x86_64" value="${p2.output.base}/sdk.install.macosx.cocoa.x86_64" />
-		<mkdir dir="${p2.sdk.install.macosx.cocoa.x86_64}" />
 
 
 		<antcall target="e4.product"/>
@@ -249,7 +237,7 @@
 		
 		<delete file="${buildDirectory}/version.properties"/>
 		<antcall target="run.version.query">
-			<param name="list.repo" value="file:${p2.sdk.install.linux.gtk.x86}/eclipse/p2/org.eclipse.equinox.p2.engine/profileRegistry/SDKProfile.profile" />
+			<param name="list.repo" value="file:${p2.sdk.install.linux.gtk.ppc}/eclipse/p2/org.eclipse.equinox.p2.engine/profileRegistry/SDKProfile.profile" />
 			<param name="list.iu" value="org.eclipse.e4.workbench.sdk,org.eclipse.emf,org.eclipse.gef,org.eclipse.sdk,org.eclipse.wst.jsdt.ui,org.eclipse.xsd,org.eclipse.wst.xml_ui.feature.feature.group" />
 		</antcall>
 		<property file="${buildDirectory}/version.properties"/>
@@ -363,6 +351,7 @@
 	</target>
 	
 	<target name="provision.e4">
+		<!--
 		<antcall target="run.director">
 			<param name="p2.director.installIU" value="org.eclipse.e4.workbench.sdk" />
 			<param name="p2.director.profile" value="SDKProfile" />
@@ -402,7 +391,7 @@
 			<param name="p2.ws" value="gtk" />
 			<param name="p2.arch" value="x86_64" />
 		</antcall>
-
+		-->
 		<antcall target="run.director">
 			<param name="p2.director.installIU" value="org.eclipse.e4.workbench.sdk" />
 			<param name="p2.director.profile" value="SDKProfile" />
@@ -413,6 +402,7 @@
 			<param name="p2.arch" value="ppc" />
 		</antcall>
 
+		<!--
 		<antcall target="run.director">
 			<param name="p2.director.installIU" value="org.eclipse.e4.workbench.sdk" />
 			<param name="p2.director.profile" value="SDKProfile" />
@@ -432,7 +422,9 @@
 			<param name="p2.ws" value="cocoa" />
 			<param name="p2.arch" value="x86_64" />
 		</antcall>
+			-->
 	</target>
+
 	
 	<target name="zip.install">
 
@@ -442,46 +434,6 @@
 
 		<parallel failonany="true" threadCount='4'>
 			<sequential>
-				<!-- win32 win32 x86 -->
-				<delete file="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-win32.zip" failonerror="false" />
-				<exec dir="${p2.sdk.install.win32.win32.x86}" executable="zip">
-					<arg line="-q ${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-win32.zip -r ." />
-				</exec>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-win32.zip" />
-				</antcall-->
-			</sequential>
-			<sequential>
-				<!-- win32 win32 x86_64 -->
-				<delete file="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-win32.x86_64.zip" failonerror="false" />
-				<exec dir="${p2.sdk.install.win32.win32.x86_64}" executable="zip">
-					<arg line="-q ${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-win32-x86_64.zip -r ." />
-				</exec>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-win32.zip" />
-				</antcall-->
-			</sequential>
-			<sequential>
-				<!-- linux gtk x86 -->
-				<antcall target="p2.tar">
-					<param name="tar.base.dir" value="${p2.sdk.install.linux.gtk.x86}" />
-					<param name="tar.base.filename" value="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-linux-gtk.tar" />
-				</antcall>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-linux-gtk.tar.gz" />
-				</antcall-->
-			</sequential>
-			<sequential>
-				<!-- linux gtk x86_64 -->
-				<antcall target="p2.tar">
-					<param name="tar.base.dir" value="${p2.sdk.install.linux.gtk.x86_64}" />
-					<param name="tar.base.filename" value="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-linux-gtk-x86_64.tar" />
-				</antcall>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-linux-gtk.tar.gz" />
-				</antcall-->
-			</sequential>
-			<sequential>
 				<!-- linux gtk ppc-->
 				<antcall target="p2.tar">
 					<param name="tar.base.dir" value="${p2.sdk.install.linux.gtk.ppc}" />
@@ -493,36 +445,6 @@
 
 			</sequential>
 
-			<sequential>
-				<!-- macosx -->
-				<!-- temp fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=223319 -->
-				<delete file="${p2.sdk.install.macosx.cocoa.x86}/eclipse/eclipse" failonerror="false" />
-				<exec dir="${p2.sdk.install.macosx.cocoa.x86}/eclipse" executable="ln">
-					<arg line="-s Eclipse.app/Contents/MacOS/eclipse eclipse" />
-				</exec>
-				<antcall target="p2.tar">
-					<param name="tar.base.dir" value="${p2.sdk.install.macosx.cocoa.x86}" />
-					<param name="tar.base.filename" value="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-macosx-cocoa.tar" />
-				</antcall>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-macosx-cocoa.tar.gz" />
-				</antcall-->
-			</sequential>
-			<sequential>
-				<!-- macosx -->
-				<!-- temp fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=223319 -->
-				<delete file="${p2.sdk.install.macosx.cocoa.x86_64}/eclipse/eclipse" failonerror="false" />
-				<exec dir="${p2.sdk.install.macosx.cocoa.x86_64}/eclipse" executable="ln">
-					<arg line="-s Eclipse.app/Contents/MacOS/eclipse eclipse" />
-				</exec>
-				<antcall target="p2.tar">
-					<param name="tar.base.dir" value="${p2.sdk.install.macosx.cocoa.x86_64}" />
-					<param name="tar.base.filename" value="${buildDirectory}/${buildLabel}/eclipse-e4-SDK-incubation-${buildLabel}-macosx-cocoa-x86_64.tar" />
-				</antcall>
-				<!--antcall target="generateChecksums">
-					<param name="archiveName" value="eclipse-e4-SDK-incubation-${buildLabel}-macosx-cocoa.tar.gz" />
-				</antcall-->
-			</sequential>
 		</parallel>
 	</target>