Auto merge of #329 - fry:master, r=jdm

add shared_support_url to CFBundle

This adds access to CFBundleCopySharedSupportURL from the CFBundle struct

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core-foundation-sys/src/bundle.rs

@@ -33,4 +33,5 @@ extern {
     pub fn CFBundleGetTypeID() -> CFTypeID;
     pub fn CFBundleCopyExecutableURL(bundle: CFBundleRef) -> CFURLRef;
     pub fn CFBundleCopyPrivateFrameworksURL(bundle: CFBundleRef) -> CFURLRef;
+    pub fn CFBundleCopySharedSupportURL(bundle: CFBundleRef) -> CFURLRef;
 }

core-foundation/src/bundle.rs

@@ -89,6 +89,17 @@ impl CFBundle {
             }
         }
     }
+
+    pub fn shared_support_url(&self) -> Option<CFURL> {
+        unsafe {
+            let fw_url = CFBundleCopySharedSupportURL(self.0);
+            if fw_url.is_null() {
+                None
+            } else {
+                Some(TCFType::wrap_under_create_rule(fw_url))
+            }
+        }
+    }
 }