shrink png fuzzer

Change-Id: I61b89eae0131c000c0a9861ab245fa21e5febc0b
Reviewed-on: https://gerrit.libreoffice.org/43287Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/Executable_pngfuzzer.mk

@@ -33,7 +33,6 @@ $(eval $(call gb_Executable_use_libraries,pngfuzzer,\
 $(eval $(call gb_Executable_use_static_libraries,pngfuzzer,\
     findsofficepath \
     ulingu \
-    fuzzer_core \
     fuzzerstubs \
 ))
 

vcl/workben/pngfuzzer.cxx

@@ -11,6 +11,29 @@
 #include <vcl/pngread.hxx>
 #include "commonfuzzer.hxx"
 
+#include <config_features.h>
+#include <osl/detail/component-mapping.h>
+
+const lib_to_factory_mapping *
+lo_get_factory_map(void)
+{
+    static lib_to_factory_mapping map[] = {
+        { 0, 0 }
+    };
+
+    return map;
+}
+
+const lib_to_constructor_mapping *
+lo_get_constructor_map(void)
+{
+    static lib_to_constructor_mapping map[] = {
+        { 0, 0 }
+    };
+
+    return map;
+}
+
 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
 {
     TypicalFuzzerInitialize(argc, argv);