Define os/ws/arch environments for tycho build

Explicitly define os/ws/arch environments for
target-platform-configuration to make build platform
independent.

Change-Id: If43f5ee573c9abaa0359ea2386477b379012e834
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.packaging/pom.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-   Copyright (C) 2009-2010, Matthias Sohn <matthias.sohn@sap.com>
+   Copyright (C) 2009-2011, Matthias Sohn <matthias.sohn@sap.com>
    and other copyright owners as documented in the project's IP log.
 
    This program and the accompanying materials are made available
@@ -130,6 +130,33 @@
           <configuration>
             <resolver>p2</resolver>
             <pomDependencies>consider</pomDependencies>
+            <environments>
+              <environment>
+                <os>linux</os>
+                <ws>gtk</ws>
+                <arch>x86</arch>
+              </environment>
+              <environment>
+                <os>linux</os>
+                <ws>gtk</ws>
+                <arch>x86_64</arch>
+              </environment>
+              <environment>
+                <os>win32</os>
+                <ws>win32</ws>
+                <arch>x86</arch>
+              </environment>
+              <environment>
+                <os>win32</os>
+                <ws>win32</ws>
+                <arch>x86_64</arch>
+              </environment>
+              <environment>
+                <os>macosx</os>
+                <ws>cocoa</ws>
+                <arch>x86_64</arch>
+              </environment>
+            </environments>
           </configuration>
         </plugin>
       </plugins>