diff --git a/packages/cairo/src/cairo.pp b/packages/cairo/src/cairo.pp
index d41026f5ad..f3757220bd 100644
--- a/packages/cairo/src/cairo.pp
+++ b/packages/cairo/src/cairo.pp
@@ -52,7 +52,9 @@ unit Cairo;
 
 interface
 
-Uses CTypes;
+Uses
+  Classes,
+  CTypes;
 
 const
 {$ifdef win32}
@@ -639,6 +641,10 @@ function  cairo_svg_version_to_string(version: cairo_svg_version_t): PChar; cdec
 
 procedure cairo_debug_reset_static_data; cdecl; external LIB_CAIRO;
 
+
+(* FreePascal helpers *)
+function cairo_write_fpstream_func(closure: Pointer; data: PByte; length: LongWord): cairo_status_t; cdecl;
+
 implementation
 
 procedure cairo_version(out major, minor, micro: LongInt);
@@ -651,4 +657,12 @@ begin
   micro := (version mod ((major * 10000) + (minor * 100)));
 end;
 
+function cairo_write_fpstream_func(closure: Pointer; data: PByte; length: LongWord): cairo_status_t; cdecl;
+var
+  Stream: TStream absolute closure;
+begin
+  Stream.Write(data^, length);
+  Result := CAIRO_STATUS_SUCCESS;
+end;
+
 end.