diff --git a/vcl/source/gdi/outdev3.cxx b/vcl/source/gdi/outdev3.cxx
index 8304746..d28d47d 100644
--- a/vcl/source/gdi/outdev3.cxx
+++ b/vcl/source/gdi/outdev3.cxx
@@ -5548,8 +5548,41 @@ long OutputDevice::GetTextArray( const OUString& rStr, sal_Int32* pDXAry,
 
     // convert virtual char widths to virtual absolute positions
     if( pDXAry )
+    {
+#ifdef ENABLE_CORETEXT
+        // very ugly hack to distribute the rounding errors between the
+        // floating point-based Core Text glyph widths and the integer-based
+        // VCL ones
+        int nSpaces = 0;
+        long nGlyphWidths = 0;
+        for (int i = nIndex; i < nLen; ++i)
+        {
+            nGlyphWidths += pDXAry[i - nIndex];
+            if ((rStr[i] <= 0x0020)                      // blank
+             || (rStr[i] >= 0x2000 && rStr[i] <= 0x200F) // whitespace
+             || (rStr[i] == 0x3000))                     // ideographic space
+                nSpaces++;
+        }
+        if (nSpaces)
+        {
+            long nDiff = (nWidth - nGlyphWidths) / nSpaces;
+            if (nDiff)
+            {
+                for (int i = nIndex; i < nLen; ++i)
+                    if (rStr[i] <= 0x0020)
+                        pDXAry[i - nIndex] += nDiff;
+            }
+        }
+#endif
+
         for( int i = 1; i < nLen; ++i )
             pDXAry[ i ] += pDXAry[ i-1 ];
+#ifdef ENABLE_CORETEXT
+        // make sure the last char width equals text width because many places
+        // in the code assume this
+        pDXAry[nLen - 1] = nWidth;
+#endif
+    }
 
     // convert from font units to logical units
     if( mbMap )