diff --git a/ChangeLog.md b/ChangeLog.md
index 46ac282..1680671 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for dear-imgui
 
+## [2.1.1]
+
+- Build flag fix for MacOS.
+
 ## [2.1.0]
 
 - `imgui` updated to [1.88].
@@ -87,6 +91,8 @@ Initial Hackage release based on [1.83].
 [1.4.0]: https://github.com/haskell-game/dear-imgui.hs/tree/v1.4.0
 [1.5.0]: https://github.com/haskell-game/dear-imgui.hs/tree/v1.5.0
 [2.0.0]: https://github.com/haskell-game/dear-imgui.hs/tree/v2.0.0
+[2.1.0]: https://github.com/haskell-game/dear-imgui.hs/tree/v2.1.0
+[2.1.1]: https://github.com/haskell-game/dear-imgui.hs/tree/v2.1.1
 
 [1.87]: https://github.com/ocornut/imgui/releases/tag/v1.87
 [1.86]: https://github.com/ocornut/imgui/releases/tag/v1.86
diff --git a/dear-imgui.cabal b/dear-imgui.cabal
index 1de69f0..816c968 100644
--- a/dear-imgui.cabal
+++ b/dear-imgui.cabal
@@ -1,7 +1,7 @@
 cabal-version: 3.0
 
 name: dear-imgui
-version: 2.1.0
+version: 2.1.1
 author: Oliver Charles
 maintainer: ollie@ocharles.org.uk, aenor.realm@gmail.com
 license: BSD-3-Clause
@@ -219,6 +219,10 @@ library
     , unordered-containers
         >= 0.2.11 && < 0.3
 
+  if os(darwin)
+    ghc-options:
+      -optcxx-std=c++11
+
   if flag(disable-obsolete)
     cxx-options: -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS
 
@@ -325,7 +329,7 @@ executable glfw
   main-is: Main.hs
   hs-source-dirs: examples/glfw
   default-language: Haskell2010
-  if (!flag(examples) || !flag(glfw) || !flag(opengl3))
+  if (!flag(examples) || !flag(glfw) || !flag(opengl2))
     buildable: False
   else
     build-depends: base, GLFW-b, gl, dear-imgui, managed, text
diff --git a/src/DearImGui.hs b/src/DearImGui.hs
index 6ac731f..3f3e8d3 100644
--- a/src/DearImGui.hs
+++ b/src/DearImGui.hs
@@ -226,6 +226,7 @@ module DearImGui
   , treeNode
   , treePush
   , Raw.treePop
+  , setNextItemOpen
 
     -- ** Selectables
   , selectable
@@ -237,6 +238,7 @@ module DearImGui
   , listBox
 
     -- ** Data Plotting
+  , plotLines
   , plotHistogram
 
     -- ** Menus
@@ -1545,6 +1547,9 @@ treePush :: MonadIO m => Text -> m ()
 treePush label = liftIO do
   Text.withCString label Raw.treePush
 
+-- | Wraps @ImGui::SetNextItemOpen()@.
+setNextItemOpen :: MonadIO m => Bool -> m ()
+setNextItemOpen is_open = Raw.setNextItemOpen (bool 0 1 is_open)
 
 -- | Wraps @ImGui::Selectable()@ with default options.
 selectable :: MonadIO m => Text -> m Bool
@@ -1590,6 +1595,12 @@ listBox label selectedIndex items = liftIO $ Managed.with m return
 
         return changed
 
+-- | Wraps @ImGui::PlotLines()@.
+plotLines :: MonadIO m => Text -> [CFloat] -> m ()
+plotLines label values = liftIO $
+  withArrayLen values \len valuesPtr ->
+    Text.withCString label \labelPtr ->
+      Raw.plotLines labelPtr valuesPtr (fromIntegral len)
 
 -- | Wraps @ImGui::PlotHistogram()@.
 plotHistogram :: MonadIO m => Text -> [CFloat] -> m ()
diff --git a/src/DearImGui/Raw.hs b/src/DearImGui/Raw.hs
index 72e2cd1..24b00c7 100644
--- a/src/DearImGui/Raw.hs
+++ b/src/DearImGui/Raw.hs
@@ -185,6 +185,7 @@ module DearImGui.Raw
   , treeNode
   , treePush
   , treePop
+  , setNextItemOpen
 
     -- ** Selectables
   , selectable
@@ -193,6 +194,7 @@ module DearImGui.Raw
   , listBox
 
     -- * Data Plotting
+  , plotLines
   , plotHistogram
 
     -- ** Menus
@@ -1232,6 +1234,11 @@ treePop = liftIO do
   [C.exp| void { TreePop() } |]
 
 
+-- | Wraps @ImGui::SetNextItemOpen()@.
+setNextItemOpen :: (MonadIO m) => CBool -> m ()
+setNextItemOpen is_open = liftIO do
+  [C.exp| void { SetNextItemOpen($(bool is_open)) } |]
+
 -- -- | Wraps @ImGui::Selectable()@.
 -- selectable :: (MonadIO m) => CString -> m Bool
 -- selectable labelPtr = liftIO do
@@ -1250,6 +1257,10 @@ listBox :: (MonadIO m) => CString -> Ptr CInt -> Ptr CString -> CInt -> m Bool
 listBox labelPtr iPtr itemsPtr itemsLen = liftIO do
   (0 /=) <$> [C.exp| bool { ListBox($(char* labelPtr), $(int* iPtr), $(char** itemsPtr), $(int itemsLen)) }|]
 
+-- | Wraps @ImGui::PlotLines()@.
+plotLines :: (MonadIO m) => CString -> Ptr CFloat -> CInt -> m ()
+plotLines labelPtr valuesPtr valuesLen = liftIO do
+  [C.exp| void { PlotLines($(char* labelPtr), $(float* valuesPtr), $(int valuesLen)) } |]
 
 -- | Wraps @ImGui::PlotHistogram()@.
 plotHistogram :: (MonadIO m) => CString -> Ptr CFloat -> CInt -> m ()