diff --git a/modules/juce_audio_formats/codecs/juce_FlacAudioFormat.cpp b/modules/juce_audio_formats/codecs/juce_FlacAudioFormat.cpp
index 05c3c44eac..2f03506ae1 100644
--- a/modules/juce_audio_formats/codecs/juce_FlacAudioFormat.cpp
+++ b/modules/juce_audio_formats/codecs/juce_FlacAudioFormat.cpp
@@ -117,6 +117,9 @@ namespace FlacNamespace
   #pragma clang diagnostic ignored "-Wconversion"
   #pragma clang diagnostic ignored "-Wshadow"
   #pragma clang diagnostic ignored "-Wdeprecated-register"
+ #elif JUCE_GCC && (__GNUC__ >= 7)
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
  #endif
 
  #if JUCE_INTEL
@@ -157,6 +160,8 @@ namespace FlacNamespace
 
  #if JUCE_CLANG
   #pragma clang diagnostic pop
+ #elif JUCE_GCC && (__GNUC__ >= 7)
+  #pragma GCC diagnostic pop
  #endif
 }
 
diff --git a/modules/juce_audio_formats/codecs/juce_OggVorbisAudioFormat.cpp b/modules/juce_audio_formats/codecs/juce_OggVorbisAudioFormat.cpp
index 0a2737bcab..e2ebd13d87 100644
--- a/modules/juce_audio_formats/codecs/juce_OggVorbisAudioFormat.cpp
+++ b/modules/juce_audio_formats/codecs/juce_OggVorbisAudioFormat.cpp
@@ -47,6 +47,12 @@ namespace OggVorbisNamespace
  #elif JUCE_GCC
   #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wshadow"
+  #if (__GNUC__ >= 6)
+   #pragma GCC diagnostic ignored "-Wmisleading-indentation"
+   #if (__GNUC__ >= 7)
+    #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+   #endif
+  #endif
  #endif
 
  #include "oggvorbis/vorbisenc.h"
diff --git a/modules/juce_core/native/juce_linux_Files.cpp b/modules/juce_core/native/juce_linux_Files.cpp
index d022175a64..1edbfe8d65 100644
--- a/modules/juce_core/native/juce_linux_Files.cpp
+++ b/modules/juce_core/native/juce_linux_Files.cpp
@@ -136,14 +136,14 @@ File File::getSpecialLocation (const SpecialLocationType type)
         case invokedExecutableFile:
             if (juce_argv != nullptr && juce_argc > 0)
                 return File (CharPointer_UTF8 (juce_argv[0]));
-            // deliberate fall-through...
+            // fall-through
 
         case currentExecutableFile:
         case currentApplicationFile:
            #if ! JUCE_STANDALONE_APPLICATION
             return juce_getExecutableFile();
            #endif
-            // deliberate fall-through if this is not a shared-library
+            // fall-through
 
         case hostApplicationPath:
         {
diff --git a/modules/juce_core/native/juce_posix_SharedCode.h b/modules/juce_core/native/juce_posix_SharedCode.h
index 67c884ab1d..100d41a863 100644
--- a/modules/juce_core/native/juce_posix_SharedCode.h
+++ b/modules/juce_core/native/juce_posix_SharedCode.h
@@ -1205,6 +1205,8 @@ public:
                 close (pipeHandles[1]); // close the write handle
             }
         }
+
+        ignoreUnused (streamFlags);
     }
 
     ~ActiveProcess()
diff --git a/modules/juce_core/xml/juce_XmlElement.cpp b/modules/juce_core/xml/juce_XmlElement.cpp
index b04e307282..5c86674d50 100644
--- a/modules/juce_core/xml/juce_XmlElement.cpp
+++ b/modules/juce_core/xml/juce_XmlElement.cpp
@@ -241,7 +241,7 @@ namespace XmlOutputFunctions
                         outputStream << (char) character;
                         break;
                     }
-                    // Note: deliberate fall-through here!
+                    // fall-through
                 default:
                     outputStream << "&#" << ((int) character) << ';';
                     break;
diff --git a/modules/juce_core/zip/juce_GZIPCompressorOutputStream.cpp b/modules/juce_core/zip/juce_GZIPCompressorOutputStream.cpp
index df64f23d2c..45087c6aab 100644
--- a/modules/juce_core/zip/juce_GZIPCompressorOutputStream.cpp
+++ b/modules/juce_core/zip/juce_GZIPCompressorOutputStream.cpp
@@ -92,7 +92,7 @@ private:
             {
                 case Z_STREAM_END:
                     finished = true;
-                    // Deliberate fall-through..
+                    // fall-through..
                 case Z_OK:
                 {
                     data += dataSize - stream.avail_in;
diff --git a/modules/juce_core/zip/juce_GZIPDecompressorInputStream.cpp b/modules/juce_core/zip/juce_GZIPDecompressorInputStream.cpp
index 0bae4d39d6..bd33e931dc 100644
--- a/modules/juce_core/zip/juce_GZIPDecompressorInputStream.cpp
+++ b/modules/juce_core/zip/juce_GZIPDecompressorInputStream.cpp
@@ -39,6 +39,9 @@ namespace zlibNamespace
    #if __has_warning("-Wcomma")
     #pragma clang diagnostic ignored "-Wcomma"
    #endif
+  #elif JUCE_GCC && (__GNUC__ >= 7)
+   #pragma GCC diagnostic push
+   #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
   #endif
 
   #undef OS_CODE
@@ -74,6 +77,8 @@ namespace zlibNamespace
 
   #if JUCE_CLANG
    #pragma clang diagnostic pop
+  #elif JUCE_GCC && (__GNUC__ >= 7)
+   #pragma GCC diagnostic pop
   #endif
  #else
   #include JUCE_ZLIB_INCLUDE_PATH
@@ -136,7 +141,7 @@ public:
             {
             case Z_STREAM_END:
                 finished = true;
-                // deliberate fall-through
+                // fall-through
             case Z_OK:
                 data += dataSize - stream.avail_in;
                 dataSize = (z_uInt) stream.avail_in;