put #ifdef around Unix specific code

Why do I still get surprised about things like code in vcl/generic/
not being generic at all?

Change-Id: I562e06fec0dc7b8ad0aacdba594921a8209d60ed

vcl/source/gdi/embeddedfontshelper.cxx

@@ -11,10 +11,13 @@
 
 #include <osl/file.hxx>
 #include <rtl/bootstrap.hxx>
-#include <vcl/fontmanager.hxx>
 #include <vcl/svapp.hxx>
 #include <vcl/outdev.hxx>
 
+#if defined(UNX)
+#include <vcl/fontmanager.hxx>
+#endif
+
 using namespace std;
 
 void EmbeddedFontsHelper::clearTemporaryFontFiles()
@@ -60,6 +63,7 @@ OUString EmbeddedFontsHelper::fontFileUrl( const OUString& familyName, FontFamil
     FontWeight weight, FontPitch pitch, rtl_TextEncoding )
 {
     OUString url;
+#if defined(UNX)
     psp::PrintFontManager& mgr = psp::PrintFontManager::get();
     list< psp::fontID > fontIds;
     mgr.getFontList( fontIds );
@@ -98,6 +102,13 @@ OUString EmbeddedFontsHelper::fontFileUrl( const OUString& familyName, FontFamil
             }
         }
     }
+#else
+    (void) familyName;
+    (void) family;
+    (void) italic;
+    (void) weight;
+    (void) pitch;
+#endif
     return url;
 }