only support one platform from project for now.

core/org.eclipse.cdt.core/plugin.properties

@@ -7,10 +7,10 @@ CProblemMarker.name=C Problem
 
 CBuildCommand.name=C Builder Command
 CBuildConsole.name=C Builder Console
-CProjectInfo.name=C Project Info
+CProject.name=C Project
 CBuilder.name=C Build Model
 ProcessList.name=Process List
 
-makeprojectowner.name=Make Project
+makeproject.name=Make Project
 genericmake.name=Generic Make
 makebuildmodel.name=Make Builder

core/org.eclipse.cdt.core/plugin.xml

@@ -26,7 +26,7 @@
 
    <extension-point id="CBuildCommand" name="%CBuildCommand.name"/>
    <extension-point id="CBuildConsole" name="%CBuildConsole.name"/>
-   <extension-point id="CProjectOwner" name="%CProjectOwner.name"/>
+   <extension-point id="CProject" name="%CProject.name"/>
    <extension-point id="CBuildModel" name="%CBuilder.name"/>
    <extension-point id="ProcessList" name="%ProcessList.name" schema="schema/ProcessList.exsd"/>
 
@@ -89,16 +89,12 @@
    </extension>
    <extension
          id="make"
-         name="%makeprojectowner.name"
+         name="%makeproject.name"
-         point="org.eclipse.cdt.core.CProjectOwner">
+         point="org.eclipse.cdt.core.CProject">
-      <platform
+      <cproject
-            architecture="*"
+            platform="local"
-            name="%genericmake.name"
-            id="*">
-      </platform>
-      <run
             class="org.eclipse.cdt.internal.core.make.MakeProject">
-      </run>
+       </cproject>
    </extension>
    <extension
          id="makeBuilder"

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ICOwnerInfo.java

@@ -7,6 +7,5 @@ package org.eclipse.cdt.core;
 public interface ICOwnerInfo {
 	public String getID();	
 	public String getName();
-	public String[] getPlatforms();
+	public String getPlatform();
-	public String[] getArchitectures(String platform);
 }

core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/CDescriptor.java

@@ -47,13 +47,11 @@ public class CDescriptor implements ICDescriptor {
 	private static final String[] EMPTY_STRING_ARRAY = new String[0];
 	private COwner fOwner;
 	private IProject fProject;
-	private String fPlatform = "*";
 	private HashMap extMap = new HashMap(4);
 	private HashMap extInfoMap = new HashMap(4);
 		
 	private final String DESCRIPTION_FILE_NAME = ".cdtproject";
 	private final String PROJECT_DESCRIPTION = "cdtproject";
-	private final String PROJECT_PLATFORM = "platform";
 	private final String PROJECT_EXTENSION = "extension";
 	private final String PROJECT_EXTENSION_ATTRIBUTE = "attribute";
 
@@ -136,7 +134,7 @@ public class CDescriptor implements ICDescriptor {
 	}
 	
 	public String getPlatform() {
-		return fPlatform;
+		return fOwner.getPlatform();
 	}
 
 	public IProject getProject() {
@@ -227,9 +225,6 @@ public class CDescriptor implements ICDescriptor {
 		catch (CoreException e) {
 			return null;
 		}
-		fPlatform = getString(node, PROJECT_PLATFORM);
-		if ( fPlatform == null ) 
-			fPlatform = "*";
 		readProjectExtensions(node);
 		return owner;
 	}
@@ -303,10 +298,6 @@ public class CDescriptor implements ICDescriptor {
 		Element configRootElement = doc.createElement(PROJECT_DESCRIPTION);
 		doc.appendChild(configRootElement);
 		configRootElement.setAttribute("id", fOwner.getID()); //$NON-NLS-1$
-		element= doc.createElement(PROJECT_PLATFORM);
-		element.appendChild(doc.createTextNode(fPlatform));
-		if ( element != null )
-			configRootElement.appendChild(element);
 		Iterator extIterator = extMap.values().iterator();
 		while( extIterator.hasNext() ) {
 			CExtensionReference extension[] = (CExtensionReference[]) extIterator.next();

core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/COwner.java

@@ -20,11 +20,12 @@ import org.eclipse.core.runtime.Status;
 
 public class COwner implements ICOwnerInfo {
 	String ownerID;
+	String fPlatform;
 	IExtension extension;
 	
 	public COwner(String id) throws CoreException {
 		ownerID = id;
-		IExtensionPoint extpoint = CCorePlugin.getDefault().getDescriptor().getExtensionPoint("CProjectOwner");
+		IExtensionPoint extpoint = CCorePlugin.getDefault().getDescriptor().getExtensionPoint("CProject");
 		if (extpoint != null) {
 			extension =  extpoint.getExtension(ownerID);
 		} else {
@@ -41,45 +42,23 @@ public class COwner implements ICOwnerInfo {
 		return extension == null ? null : extension.getLabel();
 	}
 
-	public String[] getPlatforms() {
+	public String getPlatform() {
+		if ( fPlatform == null ) {
 			IConfigurationElement element[] = extension.getConfigurationElements();
-		String platforms[] = new String[element.length];
 			for( int i = 0; i < element.length; i++ ) {
-			platforms[i] = element[i].getAttribute("id");
+				if ( element[i].getName().equalsIgnoreCase("cproject") ) {
-		}
+					fPlatform = element[i].getAttribute("platform");
-		return platforms;
+					break;
-	}
-
-	public String getPlatformName(String platform) {
-		IConfigurationElement element[] = extension.getConfigurationElements();
-		String platforms[] = new String[element.length];
-		for( int i = 0; i < element.length; i++ ) {
-			if ( platform.equals(element[i].getAttribute("id")) ) {
-				return element[i].getAttribute("name");
-			}
-		}
-		return "";
-	}
-	
-	public String[] getArchitectures(String platform) {
-		IConfigurationElement element[] = extension.getConfigurationElements();
-		String platforms[] = new String[element.length];
-		for( int i = 0; i < element.length; i++ ) {
-			if ( platform.equals(element[i].getAttribute("id")) ) {
-				StringTokenizer stoken = new StringTokenizer(element[i].getAttribute("architecture"), ",");
-				String[] archs = new String[stoken.countTokens()];
-				for( int j = 0; j < archs.length; j++ ) {
-					archs[i] = stoken.nextToken();
 				}
 			}
 		}
-		return new String[0];
+		return fPlatform;
 	}
 	
 	void configure(IProject project, ICDescriptor cproject) throws CoreException {
 		IConfigurationElement element[] = extension.getConfigurationElements();
 		for( int i = 0; i < element.length; i++ ) {
-			if ( element[i].getName().equalsIgnoreCase("run") ) {
+			if ( element[i].getName().equalsIgnoreCase("cproject") ) {
 				ICOwner owner = (ICOwner) element[i].createExecutableExtension("class");
 				owner.configure(cproject);
 				return;
@@ -92,7 +71,7 @@ public class COwner implements ICOwnerInfo {
 	void update(IProject project, ICDescriptor cproject, String extensionID) throws CoreException {
 		IConfigurationElement element[] = extension.getConfigurationElements();
 		for( int i = 0; i < element.length; i++ ) {
-			if ( element[i].getName().equalsIgnoreCase("run") ) {
+			if ( element[i].getName().equalsIgnoreCase("cproject") ) {
 				ICOwner owner = (ICOwner) element[i].createExecutableExtension("class");
 				owner.update(cproject, extensionID);
 				return;