diff --git a/src/fcdbg.c b/src/fcdbg.c
index 20fc6c8..e8cbe32 100644
--- a/src/fcdbg.c
+++ b/src/fcdbg.c
@@ -27,44 +27,52 @@
 #include <stdlib.h>
 
 static void
-_FcValuePrint (const FcValue v)
+_FcValuePrintFile (FILE *f, const FcValue v)
 {
     switch (v.type) {
     case FcTypeVoid:
-	printf ("<void>");
+	fprintf (f, "<void>");
 	break;
     case FcTypeInteger:
-	printf ("%d(i)", v.u.i);
+	fprintf (f, "%d(i)", v.u.i);
 	break;
     case FcTypeDouble:
-	printf ("%g(f)", v.u.d);
+	fprintf (f, "%g(f)", v.u.d);
 	break;
     case FcTypeString:
-	printf ("\"%s\"", v.u.s);
+	fprintf (f, "\"%s\"", v.u.s);
 	break;
     case FcTypeBool:
-	printf ("%s", v.u.b ? "True" : "False");
+	fprintf (f, "%s", v.u.b ? "True" : "False");
 	break;
     case FcTypeMatrix:
-	printf ("[%g %g; %g %g]", v.u.m->xx, v.u.m->xy, v.u.m->yx, v.u.m->yy);
+	fprintf (f, "[%g %g; %g %g]", v.u.m->xx, v.u.m->xy, v.u.m->yx, v.u.m->yy);
 	break;
     case FcTypeCharSet:	/* XXX */
-	FcCharSetPrint (v.u.c);
+	if (f == stdout)
+	    FcCharSetPrint (v.u.c);
 	break;
     case FcTypeLangSet:
 	FcLangSetPrint (v.u.l);
 	break;
     case FcTypeFTFace:
-	printf ("face");
+	fprintf (f, "face");
 	break;
     }
 }
 
+void
+FcValuePrintFile (FILE *f, const FcValue v)
+{
+    fprintf (f, " ");
+    _FcValuePrintFile (f, v);
+}
+
 void
 FcValuePrint (const FcValue v)
 {
     printf (" ");
-    _FcValuePrint (v);
+    _FcValuePrintFile (stdout, v);
 }
 
 void
@@ -74,7 +82,7 @@ FcValuePrintWithPosition (const FcValue v, FcBool show_pos_mark)
 	printf (" [insert here] ");
     else
 	printf (" ");
-    _FcValuePrint (v);
+    _FcValuePrintFile (stdout, v);
 }
 
 static void
diff --git a/src/fcint.h b/src/fcint.h
index 68074f0..76b95ca 100644
--- a/src/fcint.h
+++ b/src/fcint.h
@@ -86,7 +86,6 @@ extern pfnSHGetFolderPathA pSHGetFolderPathA;
 #define FC_DBG_SCANV	256
 #define FC_DBG_CONFIG	1024
 #define FC_DBG_LANGSET	2048
-#define FC_DBG_OBJTYPES	4096
 
 #define _FC_ASSERT_STATIC1(_line, _cond) typedef int _static_assert_on_line_##_line##_failed[(_cond)?1:-1]
 #define _FC_ASSERT_STATIC0(_line, _cond) _FC_ASSERT_STATIC1 (_line, (_cond))
@@ -703,6 +702,10 @@ FcPrivate FcChar16 *
 FcCharSetGetNumbers(const FcCharSet *c);
 
 /* fcdbg.c */
+
+FcPrivate void
+FcValuePrintFile (FILE *f, const FcValue v);
+
 FcPrivate void
 FcValuePrintWithPosition (const FcValue v, FcBool show_pos_mark);
 
diff --git a/src/fcpat.c b/src/fcpat.c
index 5d94295..0aab7a0 100644
--- a/src/fcpat.c
+++ b/src/fcpat.c
@@ -553,12 +553,10 @@ FcPatternObjectListAdd (FcPattern	*p,
     {
 	if (!FcObjectValidType (object, l->value.type))
 	{
-	    if (FcDebug() & FC_DBG_OBJTYPES)
-	    {
-		printf ("FcPattern object %s does not accept value ",
-			FcObjectName (object));
-		FcValuePrint (l->value);
-	    }
+	    fprintf (stderr,
+		     "Fontconfig warning: FcPattern object %s does not accept value", FcObjectName (object));
+	    FcValuePrintFile (stderr, l->value);
+	    fprintf (stderr, "\n");
 	    goto bail0;
 	}
     }
@@ -613,12 +611,11 @@ FcPatternObjectAddWithBinding  (FcPattern	*p,
      */
     if (!FcObjectValidType (object, value.type))
     {
-	if (FcDebug() & FC_DBG_OBJTYPES)
-	{
-	    printf ("FcPattern object %s does not accept value ",
-		    FcObjectName (object));
-	    FcValuePrint (value);
-	}
+	fprintf (stderr,
+		 "Fontconfig warning: FcPattern object %s does not accept value",
+		 FcObjectName (object));
+	FcValuePrintFile (stderr, value);
+	fprintf (stderr, "\n");
 	goto bail1;
     }