diff --git a/modules/juce_core/text/juce_CharPointer_ASCII.h b/modules/juce_core/text/juce_CharPointer_ASCII.h
index a966543b56..a8e8de8417 100644
--- a/modules/juce_core/text/juce_CharPointer_ASCII.h
+++ b/modules/juce_core/text/juce_CharPointer_ASCII.h
@@ -276,8 +276,10 @@ public:
 
     int compareIgnoreCase (const CharPointer_ASCII other) const
     {
-       #if JUCE_WINDOWS
+       #if JUCE_MSVC
         return stricmp (data, other.data);
+       #elif JUCE_MINGW
+        return CharacterFunctions::compareIgnoreCase (*this, other);
        #else
         return strcasecmp (data, other.data);
        #endif
@@ -344,7 +346,7 @@ public:
     /** Parses this string as a 64-bit integer. */
     int64 getIntValue64() const noexcept
     {
-       #if JUCE_LINUX || JUCE_ANDROID
+       #if JUCE_LINUX || JUCE_ANDROID || JUCE_MINGW
         return atoll (data);
        #elif JUCE_WINDOWS
         return _atoi64 (data);
diff --git a/modules/juce_core/text/juce_CharPointer_UTF16.h b/modules/juce_core/text/juce_CharPointer_UTF16.h
index d0eba5ceaa..50d18901b5 100644
--- a/modules/juce_core/text/juce_CharPointer_UTF16.h
+++ b/modules/juce_core/text/juce_CharPointer_UTF16.h
@@ -349,7 +349,7 @@ public:
         return CharacterFunctions::compareIgnoreCaseUpTo (*this, other, maxChars);
     }
 
-   #if JUCE_WINDOWS && ! DOXYGEN
+   #if JUCE_MSVC && ! DOXYGEN
     int compareIgnoreCase (const CharPointer_UTF16 other) const noexcept
     {
         return _wcsicmp (data, other.data);
@@ -408,7 +408,7 @@ public:
     /** Parses this string as a 32-bit integer. */
     int getIntValue32() const noexcept
     {
-       #if JUCE_WINDOWS
+       #if JUCE_MSVC
         return _wtoi (data);
        #else
         return CharacterFunctions::getIntValue <int, CharPointer_UTF16> (*this);
@@ -418,7 +418,7 @@ public:
     /** Parses this string as a 64-bit integer. */
     int64 getIntValue64() const noexcept
     {
-       #if JUCE_WINDOWS
+       #if JUCE_MSVC
         return _wtoi64 (data);
        #else
         return CharacterFunctions::getIntValue <int64, CharPointer_UTF16> (*this);
diff --git a/modules/juce_core/text/juce_CharPointer_UTF8.h b/modules/juce_core/text/juce_CharPointer_UTF8.h
index 78d9a975ee..cf8e6d9be4 100644
--- a/modules/juce_core/text/juce_CharPointer_UTF8.h
+++ b/modules/juce_core/text/juce_CharPointer_UTF8.h
@@ -421,8 +421,10 @@ public:
     /** Compares this string with another one. */
     int compareIgnoreCase (const CharPointer_UTF8 other) const noexcept
     {
-       #if JUCE_WINDOWS
+       #if JUCE_MSVC
         return stricmp (data, other.data);
+       #elif JUCE_MINGW
+        return CharacterFunctions::compareIgnoreCase (*this, other);
        #else
         return strcasecmp (data, other.data);
        #endif
@@ -479,7 +481,7 @@ public:
     /** Parses this string as a 64-bit integer. */
     int64 getIntValue64() const noexcept
     {
-       #if JUCE_LINUX || JUCE_ANDROID
+       #if JUCE_LINUX || JUCE_ANDROID || JUCE_MINGW
         return atoll (data);
        #elif JUCE_WINDOWS
         return _atoi64 (data);
diff --git a/modules/juce_core/time/juce_Time.cpp b/modules/juce_core/time/juce_Time.cpp
index fabcfde2ef..7ba8e5f830 100644
--- a/modules/juce_core/time/juce_Time.cpp
+++ b/modules/juce_core/time/juce_Time.cpp
@@ -361,7 +361,7 @@ String Time::getTimeZone() const noexcept
 {
     String zone[2];
 
-  #if JUCE_WINDOWS
+  #if JUCE_MSVC
     _tzset();
 
    #ifdef _INC_TIME_INL
@@ -378,7 +378,11 @@ String Time::getTimeZone() const noexcept
     zone[1] = zonePtr[1];
    #endif
   #else
+   #if JUCE_MINGW
+    #warning "Can't find a replacement for tzset on mingw - ideas welcome!"
+   #else
     tzset();
+   #endif
     const char** const zonePtr = (const char**) tzname;
     zone[0] = zonePtr[0];
     zone[1] = zonePtr[1];