diff --git a/area_darwin.m b/area_darwin.m
index a34dcdb..6727415 100644
--- a/area_darwin.m
+++ b/area_darwin.m
@@ -2,11 +2,11 @@
 
 #include "objc_darwin.h"
 #include "_cgo_export.h"
-#include <AppKit/NSView.h>
-#include <AppKit/NSTrackingArea.h>
-#include <Foundation/NSGeometry.h>
-#include <AppKit/NSEvent.h>
-#include <AppKit/NSBitmapImageRep.h>
+#import <AppKit/NSView.h>
+#import <AppKit/NSTrackingArea.h>
+#import <Foundation/NSGeometry.h>
+#import <AppKit/NSEvent.h>
+#import <AppKit/NSBitmapImageRep.h>
 
 #define to(T, x) ((T *) (x))
 #define toNSEvent(x) to(NSEvent, (x))
diff --git a/delegateuitask_darwin.m b/delegateuitask_darwin.m
index 4ad0796..b45f680 100644
--- a/delegateuitask_darwin.m
+++ b/delegateuitask_darwin.m
@@ -2,13 +2,13 @@
 
 #include "objc_darwin.h"
 #include "_cgo_export.h"
-#include <Foundation/NSObject.h>
-#include <Foundation/NSValue.h>
-#include <Foundation/NSNotification.h>
+#import <Foundation/NSObject.h>
+#import <Foundation/NSValue.h>
+#import <Foundation/NSNotification.h>
 
 // see the hack below; we'll include everything first just in case some other headers get included below; if the hack ever gets resolved, we can use the ones below instead
-#include <Foundation/NSAutoreleasePool.h>
-#include <AppKit/NSEvent.h>
+#import <Foundation/NSAutoreleasePool.h>
+#import <AppKit/NSEvent.h>
 
 // HACK.
 // Apple's header files are bugged: there's an enum that was introduced in 10.7 with new values added in 10.8, but instead of wrapping the whole enum in a version check, they wrap just the fields. This means that on 10.6 that enum will be empty, which is illegal.
@@ -19,8 +19,8 @@
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_7
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_7
-# MAC_OS_X_VERSION_10_7 MAC_OS_X_VERSION_10_6 MAC_OS_X_VERSION_10_3
-#include <AppKit/NSApplication.h>
+//# MAC_OS_X_VERSION_10_7 MAC_OS_X_VERSION_10_6 MAC_OS_X_VERSION_10_3
+#import <AppKit/NSApplication.h>
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
@@ -28,9 +28,9 @@
 
 // NSWindow.h is below because it includes NSApplication.h
 // we'll use the other headers's include guards so if the above is resolved and I forget to uncomment anything below it won't matter
-#include <AppKit/NSWindow.h>
-#include <Foundation/NSAutoreleasePool.h>
-#include <AppKit/NSEvent.h>
+#import <AppKit/NSWindow.h>
+#import <Foundation/NSAutoreleasePool.h>
+#import <AppKit/NSEvent.h>
 
 extern NSRect dummyRect;
 
diff --git a/dialog_darwin.m b/dialog_darwin.m
index 7bd7a8f..b147c5a 100644
--- a/dialog_darwin.m
+++ b/dialog_darwin.m
@@ -1,7 +1,7 @@
 // 15 may 2014
 
 #include "objc_darwin.h"
-#include <AppKit/NSAlert.h>
+#import <AppKit/NSAlert.h>
 
 static void alert(NSString *primary, NSString *secondary, NSAlertStyle style)
 {
diff --git a/listbox_darwin.m b/listbox_darwin.m
index 69ac09e..4754a3f 100644
--- a/listbox_darwin.m
+++ b/listbox_darwin.m
@@ -1,26 +1,26 @@
 // 13 may 2014
 
 #include "objc_darwin.h"
-#include <Foundation/NSDictionary.h>
-#include <AppKit/NSArrayController.h>
-#include <AppKit/NSTableColumn.h>
+#import <Foundation/NSDictionary.h>
+#import <AppKit/NSArrayController.h>
+#import <AppKit/NSTableColumn.h>
 
 // see delegateuitask_darwin.m
 // in this case, NSTableView.h includes NSApplication.h
-#include <Foundation/NSIndexSet.h>
+#import <Foundation/NSIndexSet.h>
 
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_7
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_7
-#include <AppKit/NSApplication.h>
+#import <AppKit/NSApplication.h>
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_6
 
-#include <AppKit/NSTableView.h>
-#include <Foundation/NSIndexSet.h>
+#import <AppKit/NSTableView.h>
+#import <Foundation/NSIndexSet.h>
 
 #define to(T, x) ((T *) (x))
 #define toNSMutableDictionary(x) to(NSMutableDictionary, (x))
diff --git a/objc_darwin.m b/objc_darwin.m
index ded192e..79966c9 100644
--- a/objc_darwin.m
+++ b/objc_darwin.m
@@ -1,25 +1,24 @@
 // 15 may 2014
 
 #include "objc_darwin.h"
-#include <Foundation/NSString.h>
+#import <Foundation/NSString.h>
 
 // see delegateuitask_darwin.m
 // in this case, NSScrollView.h includes NSApplication.h
-// NOTE NSView.h apparently lacks include guards; we'll need to uncomment the one below
-#include <AppKit/NSView.h>
+#import <AppKit/NSView.h>
 
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_7
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_7
-#include <AppKit/NSApplication.h>
+#import <AppKit/NSApplication.h>
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_6
 
-//#include <AppKit/NSView.h>
-#include <AppKit/NSScrollView.h>
+#import <AppKit/NSView.h>
+#import <AppKit/NSScrollView.h>
 
 #define to(T, x) ((T *) (x))
 #define _toNSString(x) to(NSString, (x))
diff --git a/prefsize_darwin.m b/prefsize_darwin.m
index 8c975af..34a0dcd 100644
--- a/prefsize_darwin.m
+++ b/prefsize_darwin.m
@@ -1,7 +1,7 @@
 // 15 may 2014
 
 #include "objc_darwin.h"
-#include <AppKit/NSControl.h>
+#import <AppKit/NSControl.h>
 
 // see delegateuitask_darwin.m
 // in this case, NSScrollView.h, NSTableView.h, AND NSProgressIndicator.h all include NSApplication.h
@@ -10,15 +10,15 @@
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_7
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_7
-#include <AppKit/NSApplication.h>
+#import <AppKit/NSApplication.h>
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_6
 
-#include <AppKit/NSScrollView.h>
-#include <AppKit/NSTableView.h>
-#include <AppKit/NSProgressIndicator.h>
+#import <AppKit/NSScrollView.h>
+#import <AppKit/NSTableView.h>
+#import <AppKit/NSProgressIndicator.h>
 
 #define to(T, x) ((T *) (x))
 #define toNSControl(x) to(NSControl, (x))
diff --git a/sysdata_darwin.m b/sysdata_darwin.m
index ded1d3c..46c19e0 100644
--- a/sysdata_darwin.m
+++ b/sysdata_darwin.m
@@ -1,35 +1,34 @@
 // 12 may 2014
 
 #include "objc_darwin.h"
-#include <Foundation/NSGeometry.h>
+#import <Foundation/NSGeometry.h>
 
 // see delegateuitask_darwin.m
 // in this case, lots of headers include NSApplication.h
-// NOTE uncomment the ones below when resolved because yay inconsistent include guard madness
-#include <AppKit/NSView.h>
-#include <AppKit/NSControl.h>
+#import <AppKit/NSView.h>
+#import <AppKit/NSControl.h>
 
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_7
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_7
-#include <AppKit/NSApplication.h>
+#import <AppKit/NSApplication.h>
 #undef MAC_OS_X_VERSION_MIN_REQUIRED
 #undef MAC_OS_X_VERSION_MAX_ALLOWED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
 #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_10_6
 
-#include <AppKit/NSWindow.h>
-#include <AppKit/NSView.h>
-#include <AppKit/NSFont.h>
-//#include <AppKit/NSControl.h>
-#include <AppKit/NSButton.h>
-#include <AppKit/NSPopUpButton.h>
-#include <AppKit/NSComboBox.h>
-#include <AppKit/NSTextField.h>
-#include <AppKit/NSSecureTextField.h>
-#include <AppKit/NSProgressIndicator.h>
-#include <AppKit/NSScrollView.h>
+#import <AppKit/NSWindow.h>
+#import <AppKit/NSView.h>
+#import <AppKit/NSFont.h>
+#import <AppKit/NSControl.h>
+#import <AppKit/NSButton.h>
+#import <AppKit/NSPopUpButton.h>
+#import <AppKit/NSComboBox.h>
+#import <AppKit/NSTextField.h>
+#import <AppKit/NSSecureTextField.h>
+#import <AppKit/NSProgressIndicator.h>
+#import <AppKit/NSScrollView.h>
 
 extern NSRect dummyRect;