diff --git a/benchmark/run.cpp b/benchmark/run.cpp
index 251bf7161..8668ab5d4 100644
--- a/benchmark/run.cpp
+++ b/benchmark/run.cpp
@@ -900,7 +900,10 @@ int main( int argc, char** argv)
         }
 
         {
-            mapnik::freetype_engine::register_fonts("./fonts", true);
+            bool success = mapnik::freetype_engine::register_fonts("./fonts", true);
+            if (!success) {
+               std::clog << "warning, did not register any new fonts!\n";
+            }
             unsigned face_count = mapnik::freetype_engine::face_names().size();
             test13 runner(1000,10);
             benchmark(runner, (boost::format("font_engihe: created %ld faces in ") % (face_count * 1000 * 10)).str());
diff --git a/bindings/python/mapnik_feature.cpp b/bindings/python/mapnik_feature.cpp
index f597c9b56..19b3b4aa2 100644
--- a/bindings/python/mapnik_feature.cpp
+++ b/bindings/python/mapnik_feature.cpp
@@ -54,7 +54,8 @@ boost::ptr_vector<mapnik::geometry_type> const& (mapnik::feature_impl::*get_path
 
 void feature_add_geometries_from_wkb(mapnik::feature_impl &feature, std::string wkb)
 {
-    geometry_utils::from_wkb(feature.paths(), wkb.c_str(), wkb.size());
+    bool result = geometry_utils::from_wkb(feature.paths(), wkb.c_str(), wkb.size());
+    if (!result) throw std::runtime_error("Failed to parse WKB");
 }
 
 void feature_add_geometries_from_wkt(mapnik::feature_impl &feature, std::string wkt)
diff --git a/utils/pgsql2sqlite/pgsql2sqlite.hpp b/utils/pgsql2sqlite/pgsql2sqlite.hpp
index b799bb2eb..8962d0f9f 100644
--- a/utils/pgsql2sqlite/pgsql2sqlite.hpp
+++ b/utils/pgsql2sqlite/pgsql2sqlite.hpp
@@ -212,7 +212,10 @@ void pgsql2sqlite(Connection conn,
 
     if ( rs->next())
     {
-        mapnik::util::string2int(rs->getValue("srid"),srid);
+        if (!mapnik::util::string2int(rs->getValue("srid"),srid))
+        {
+            std::clog << "could not convert srid to integer\n";
+        }
         geom_col = rs->getValue("f_geometry_column");
         geom_type = rs->getValue("type");
     }