### Eclipse Workspace Patch 1.0
#P org.eclipse.pde.build
Index: src/org/eclipse/pde/internal/build/IBuildPropertiesConstants.java
===================================================================
RCS file: /cvsroot/eclipse/pde/build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/IBuildPropertiesConstants.java,v
retrieving revision 1.56
diff -u -r1.56 IBuildPropertiesConstants.java
--- src/org/eclipse/pde/internal/build/IBuildPropertiesConstants.java	7 Apr 2010 20:06:10 -0000	1.56
+++ src/org/eclipse/pde/internal/build/IBuildPropertiesConstants.java	21 Apr 2010 19:44:41 -0000
@@ -62,6 +62,7 @@
 	public static final String PROPERTY_JAVAC_CUSTOM_ENCODINGS_PREFIX = "javacCustomEncodings."; //$NON-NLS-1$
 	public static final String PROPERTY_JAVAC_WARNINGS_PREFIX = "javacWarnings."; //$NON-NLS-1$
 	public static final String PROPERTY_JAVAC_ERRORS_PREFIX = "javacErrors."; //$NON-NLS-1$
+	public static final String PROPERTY_PROJECT_SETTINGS = "javacProjectSettings"; //$NON-NLS-1$
 
 	public static final String DEFAULT_MATCH_ALL = "*"; //$NON-NLS-1$
 	public static final String DEFAULT_FINAL_SHAPE = "*"; //$NON-NLS-1$
Index: src/org/eclipse/pde/internal/build/IPDEBuildConstants.java
===================================================================
RCS file: /cvsroot/eclipse/pde/build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/IPDEBuildConstants.java,v
retrieving revision 1.53
diff -u -r1.53 IPDEBuildConstants.java
--- src/org/eclipse/pde/internal/build/IPDEBuildConstants.java	1 Mar 2010 23:19:26 -0000	1.53
+++ src/org/eclipse/pde/internal/build/IPDEBuildConstants.java	21 Apr 2010 19:44:41 -0000
@@ -146,4 +146,6 @@
 	//container feature used in building .product files
 	public final static String CONTAINER_FEATURE = "org.eclipse.pde.build.container.feature"; //$NON-NLS-1$
 	public final static String UI_CONTAINER_FEATURE = "org.eclipse.pde.container.feature"; //$NON-NLS-1$
+
+	public final static String JDT_CORE_PREFS = ".settings/org.eclipse.jdt.core.prefs"; //$NON-NLS-1$
 }
Index: src/org/eclipse/pde/internal/build/ant/JavacTask.java
===================================================================
RCS file: /cvsroot/eclipse/pde/build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/ant/JavacTask.java,v
retrieving revision 1.32
diff -u -r1.32 JavacTask.java
--- src/org/eclipse/pde/internal/build/ant/JavacTask.java	1 Mar 2010 23:19:26 -0000	1.32
+++ src/org/eclipse/pde/internal/build/ant/JavacTask.java	21 Apr 2010 19:44:41 -0000
@@ -37,6 +37,7 @@
 	protected String errorProperty;
 	protected String[] excludes;
 	protected String compilerAdapter;
+	protected String warningProperties;
 	private boolean adapterUseLog = false;
 	private boolean adapterUseArgFile = false;
 
@@ -96,6 +97,17 @@
 			script.println("/>"); //$NON-NLS-1$
 		}
 
+		if (warningProperties != null) {
+			script.printTab();
+			script.print("<compilerarg"); //$NON-NLS-1$
+			script.printAttribute("line", "-properties '" + warningProperties + "'", true); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+			if (compilerAdapter != null && adapterUseArgFile)
+				script.printAttribute("compiler", compilerAdapter, true); //$NON-NLS-1$
+			else
+				script.printAttribute("compiler", IXMLConstants.JDT_COMPILER_ADAPTER, true); //$NON-NLS-1$
+			script.println("/>"); //$NON-NLS-1$
+		}
+
 		if (compileArgsFile != null) {
 			script.printTabs();
 			script.print("<compilerarg"); //$NON-NLS-1$
@@ -269,4 +281,8 @@
 		this.adapterUseArgFile = useFile;
 
 	}
+
+	public void setWarningProperties(String warningProperties) {
+		this.warningProperties = warningProperties;
+	}
 }
Index: src/org/eclipse/pde/internal/build/builder/ModelBuildScriptGenerator.java
===================================================================
RCS file: /cvsroot/eclipse/pde/build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/builder/ModelBuildScriptGenerator.java,v
retrieving revision 1.141
diff -u -r1.141 ModelBuildScriptGenerator.java
--- src/org/eclipse/pde/internal/build/builder/ModelBuildScriptGenerator.java	7 Apr 2010 20:06:10 -0000	1.141
+++ src/org/eclipse/pde/internal/build/builder/ModelBuildScriptGenerator.java	21 Apr 2010 19:44:42 -0000
@@ -114,6 +114,7 @@
 	private String customCallbacksBuildpath = null;
 	private String customCallbacksFailOnError = null;
 	private String customCallbacksInheritAll = null;
+	private String warningProperties = null;
 	// array of extensions of recognized source files (eg- *.java, *.aj, etc)
 	private String[] sourceFileExtensions;
 	//This list is initialized by the generateBuildJarsTarget
@@ -226,6 +227,16 @@
 				}
 			}
 		}
+
+		String projectWarningSettings = getBuildProperties().getProperty(PROPERTY_PROJECT_SETTINGS);
+		if (Boolean.valueOf(projectWarningSettings).booleanValue()) {
+			//find default prefs file
+			if (new File(model.getLocation(), JDT_CORE_PREFS).exists())
+				warningProperties = JDT_CORE_PREFS;
+		} else if (projectWarningSettings != null && !FALSE.equalsIgnoreCase(projectWarningSettings)) {
+			if (new File(model.getLocation(), projectWarningSettings).exists())
+				warningProperties = projectWarningSettings;
+		}
 	}
 
 	protected static boolean findAndReplaceDot(String[] classpathInfo) {
@@ -1475,6 +1486,8 @@
 			javac.setCompileArgs(Utils.getPropertyFormat(PROPERTY_JAVAC_COMPILERARG));
 			javac.setSrcdir(sources);
 			javac.setLogExtension(Utils.getPropertyFormat(PROPERTY_LOG_EXTENSION));
+			if (warningProperties != null)
+				javac.setWarningProperties(Utils.getPropertyFormat(PROPERTY_BASEDIR) + '/' + warningProperties);
 			if (generateErrorPropertyAttribute)
 				javac.setErrorProperty(PROPERTY_COMPILATION_ERROR);
 			generateCompilerSettings(javac, entry, classpath);