diff --git a/doxygen/Doxyfile b/doxygen/Doxyfile
index 6fbfec64a3..c253eb0dbe 100644
--- a/doxygen/Doxyfile
+++ b/doxygen/Doxyfile
@@ -2058,7 +2058,6 @@ PREDEFINED             = WIN32=1 \
                          JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS=1 \
                          JUCE_COMPILER_SUPPORTS_VARIADIC_TEMPLATES=1 \
                          JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL=1 \
-                         JUCE_COMPILER_SUPPORTS_LAMBDAS=1 \
                          JUCE_MODAL_LOOPS_PERMITTED=1
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
diff --git a/examples/Demo/Source/Demos/FlexBoxDemo.cpp b/examples/Demo/Source/Demos/FlexBoxDemo.cpp
index 0d5064552f..0afd5a3aba 100644
--- a/examples/Demo/Source/Demos/FlexBoxDemo.cpp
+++ b/examples/Demo/Source/Demos/FlexBoxDemo.cpp
@@ -27,7 +27,7 @@
 #include "../JuceDemoHeader.h"
 
 // these classes are C++11-only
-#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS && JUCE_COMPILER_SUPPORTS_LAMBDAS
+#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS
 
 struct DemoFlexPanel   : public juce::Component,
                          private juce::TextEditor::Listener,
diff --git a/extras/BLOCKS/doxygen/Doxyfile b/extras/BLOCKS/doxygen/Doxyfile
index 9729e672ef..08e613d670 100644
--- a/extras/BLOCKS/doxygen/Doxyfile
+++ b/extras/BLOCKS/doxygen/Doxyfile
@@ -2069,7 +2069,6 @@ PREDEFINED             = WIN32=1 \
                          JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS=1 \
                          JUCE_COMPILER_SUPPORTS_VARIADIC_TEMPLATES=1 \
                          JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL=1 \
-                         JUCE_COMPILER_SUPPORTS_LAMBDAS=1 \
                          JUCE_MODAL_LOOPS_PERMITTED=1
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
diff --git a/modules/juce_core/maths/juce_NormalisableRange.h b/modules/juce_core/maths/juce_NormalisableRange.h
index 22a41c3c8d..3f3794e151 100644
--- a/modules/juce_core/maths/juce_NormalisableRange.h
+++ b/modules/juce_core/maths/juce_NormalisableRange.h
@@ -47,12 +47,10 @@ public:
     NormalisableRange (const NormalisableRange& other) noexcept
         : start (other.start), end (other.end),
           interval (other.interval), skew (other.skew),
-          symmetricSkew (other.symmetricSkew)
-         #if JUCE_COMPILER_SUPPORTS_LAMBDAS
-          , convertFrom0To1Function (other.convertFrom0To1Function)
-          , convertTo0To1Function (other.convertTo0To1Function)
-          , snapToLegalValueFunction (other.snapToLegalValueFunction)
-         #endif
+          symmetricSkew (other.symmetricSkew),
+          convertFrom0To1Function  (other.convertFrom0To1Function),
+          convertTo0To1Function    (other.convertTo0To1Function),
+          snapToLegalValueFunction (other.snapToLegalValueFunction)
     {
         checkInvariants();
     }
@@ -65,11 +63,9 @@ public:
         interval = other.interval;
         skew = other.skew;
         symmetricSkew = other.symmetricSkew;
-       #if JUCE_COMPILER_SUPPORTS_LAMBDAS
-        convertFrom0To1Function = other.convertFrom0To1Function;
-        convertTo0To1Function = other.convertTo0To1Function;
+        convertFrom0To1Function  = other.convertFrom0To1Function;
+        convertTo0To1Function    = other.convertTo0To1Function;
         snapToLegalValueFunction = other.snapToLegalValueFunction;
-       #endif
 
         checkInvariants();
 
diff --git a/modules/juce_core/system/juce_CompilerSupport.h b/modules/juce_core/system/juce_CompilerSupport.h
index fb5d53be2f..7efab0a8ff 100644
--- a/modules/juce_core/system/juce_CompilerSupport.h
+++ b/modules/juce_core/system/juce_CompilerSupport.h
@@ -42,8 +42,7 @@
   #define JUCE_DELETED_FUNCTION = delete
  #endif
 
- #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406 && ! defined (JUCE_COMPILER_SUPPORTS_LAMBDAS)
-  #define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
+ #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406
   #define JUCE_STDLIB_HAS_STD_FUNCTION_SUPPORT 1
  #endif
 
@@ -66,10 +65,6 @@
   #define JUCE_DELETED_FUNCTION = delete
  #endif
 
- #if __has_feature (cxx_lambdas)
-  #define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
- #endif
-
  #if (defined (_LIBCPP_VERSION) || ! (JUCE_MAC || JUCE_IOS))
   #define JUCE_STDLIB_HAS_STD_FUNCTION_SUPPORT 1
  #endif
@@ -104,7 +99,6 @@
 
  #if _MSC_VER >= 1700
   #define JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL 1
-  #define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
  #endif
 
  #if _MSC_VER >= 1800
diff --git a/modules/juce_gui_basics/juce_gui_basics.cpp b/modules/juce_gui_basics/juce_gui_basics.cpp
index 3c1e54df04..d1358955ea 100644
--- a/modules/juce_gui_basics/juce_gui_basics.cpp
+++ b/modules/juce_gui_basics/juce_gui_basics.cpp
@@ -258,7 +258,7 @@ extern bool juce_areThereAnyAlwaysOnTopWindows();
 #include "misc/juce_JUCESplashScreen.cpp"
 
 // these classes are C++11-only
-#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS && JUCE_COMPILER_SUPPORTS_LAMBDAS
+#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS
  #include "layout/juce_FlexBox.cpp"
 #endif
 
diff --git a/modules/juce_gui_basics/juce_gui_basics.h b/modules/juce_gui_basics/juce_gui_basics.h
index a874624b71..24f06b096e 100644
--- a/modules/juce_gui_basics/juce_gui_basics.h
+++ b/modules/juce_gui_basics/juce_gui_basics.h
@@ -292,7 +292,7 @@ class FlexBox;
 #endif
 
 // these classes are C++11-only
-#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS && JUCE_COMPILER_SUPPORTS_LAMBDAS
+#if JUCE_COMPILER_SUPPORTS_INITIALIZER_LISTS
 #include "layout/juce_FlexItem.h"
 #include "layout/juce_FlexBox.h"
 #endif
diff --git a/modules/juce_osc/osc/juce_OSCReceiver.h b/modules/juce_osc/osc/juce_OSCReceiver.h
index fc3bbd5ab3..63871192bc 100644
--- a/modules/juce_osc/osc/juce_OSCReceiver.h
+++ b/modules/juce_osc/osc/juce_OSCReceiver.h
@@ -189,11 +189,7 @@ public:
         The arguments passed are the pointer to and the data of the buffer that
         the OSCReceiver has failed to parse.
     */
-   #if JUCE_COMPILER_SUPPORTS_LAMBDAS
     typedef std::function<void (const char* data, int dataSize)> FormatErrorHandler;
-   #else
-    typedef void (*FormatErrorHandler) (const char* data, int dataSize);
-   #endif
 
     /** Installs a custom error handler which is called in case the receiver
         encounters a stream it cannot parse as an OSC bundle or OSC message.