diff --git a/src/Lib/Polygon/polygon.cxx b/src/Lib/Polygon/polygon.cxx
index 51535ea5..c61d66b8 100644
--- a/src/Lib/Polygon/polygon.cxx
+++ b/src/Lib/Polygon/polygon.cxx
@@ -273,9 +273,9 @@ void TGPolygon::shift( double lon, double lat ) {
 void TGPolygon::write( const string& file ) const {
     FILE *fp = fopen( file.c_str(), "w" );
 
-    fprintf(fp, "%d\n", poly.size());
+    fprintf(fp, "%ld\n", poly.size());
     for ( int i = 0; i < (int)poly.size(); ++i ) {
-        fprintf(fp, "%d\n", poly[i].size());
+        fprintf(fp, "%ld\n", poly[i].size());
 	for ( int j = 0; j < (int)poly[i].size(); ++j ) {
 	    fprintf(fp, "%.6f %.6f\n", poly[i][j].x(), poly[i][j].y());
 	}
diff --git a/src/Lib/Polygon/polygon.hxx b/src/Lib/Polygon/polygon.hxx
index 70498f6f..c672bdb5 100644
--- a/src/Lib/Polygon/polygon.hxx
+++ b/src/Lib/Polygon/polygon.hxx
@@ -55,43 +55,21 @@ class TGPolygon;
  * when turned on
  */
 
-#define CLIP_NATIVE 0
-
-#ifdef CLIP_GPC
 extern "C" {
 #include <gpc.h>
 }
 
-#if CLIP_NATIVE // optimization apparently causing errors
-typedef gpc_polygon	ClipPolyType;
-#else
-typedef TGPolygon	ClipPolyType;
-#endif
-
-#endif /* CLIP_GPC */
-
-#ifdef CLIP_CLIPPER
 #include "clipper.hpp"
 using namespace ClipperLib;
 
-#if CLIP_NATIVE // optimization apparently causing errors
-typedef Polygons    ClipPolyType;
-#else
-typedef TGPolygon	ClipPolyType;
-#endif
-
-#endif /* CLIP_CLIPPER */
-
-
-
 #define FG_MAX_VERTICES 1500000
 
+typedef TGPolygon ClipPolyType;
 
 typedef std::vector < point_list > polytype;
 typedef polytype::iterator polytype_iterator;
 typedef polytype::const_iterator const_polytype_iterator;
 
-
 class TGPolygon {
 
 private:
diff --git a/src/Lib/TriangleJRS/triangle.c b/src/Lib/TriangleJRS/triangle.c
index 000f5c4f..49786219 100644
--- a/src/Lib/TriangleJRS/triangle.c
+++ b/src/Lib/TriangleJRS/triangle.c
@@ -12945,7 +12945,7 @@ void statistics()
 
 #ifdef TRILIBRARY
 
-void triangulate(triswitches, in, out, vorout)
+int triangulate(triswitches, in, out, vorout)
 char *triswitches;
 struct triangulateio *in;
 struct triangulateio *out;
@@ -13261,7 +13261,6 @@ char **argv;
 #endif /* not REDUCED */
 
   triangledeinit();
-#ifndef TRILIBRARY
+
   return 0;
-#endif /* not TRILIBRARY */
 }
diff --git a/src/Lib/TriangleJRS/triangle.h b/src/Lib/TriangleJRS/triangle.h
index 1d28ca02..b034113f 100644
--- a/src/Lib/TriangleJRS/triangle.h
+++ b/src/Lib/TriangleJRS/triangle.h
@@ -286,10 +286,10 @@ struct triangulateio {
 };
 
 #ifdef ANSI_DECLARATORS
-void triangulate(char *, struct triangulateio *, struct triangulateio *,
+int triangulate(char *, struct triangulateio *, struct triangulateio *,
                  struct triangulateio *);
 #else /* not ANSI_DECLARATORS */
-void triangulate();
+int triangulate();
 #endif /* not ANSI_DECLARATORS */
 
 
diff --git a/src/Prep/Photo/photo.cxx b/src/Prep/Photo/photo.cxx
index a70e588b..10fd98b6 100644
--- a/src/Prep/Photo/photo.cxx
+++ b/src/Prep/Photo/photo.cxx
@@ -245,13 +245,13 @@ int main( int argc, char **argv ) {
         geod = SGGeod::fromDegM( geod_nodes[i].x(), geod_nodes[i].y(), geod_nodes[i].z() );
         SGVec3d cart = SGVec3d::fromGeod(geod);
         cout << cart << endl;
-	wgs84_nodes.push_back( cart );
+        wgs84_nodes.push_back( cart );
     }
 
     // bounding sphere
     SGBucket b( (x0 + x2) / 2, (y0 + y2) / 2 );
     SGSphered d;
-    for ( i = 0; i < wgs84_nodes.size(); ++i ) {
+    for ( i = 0; i < (int)wgs84_nodes.size(); ++i ) {
         d.expandBy(wgs84_nodes[ i ]);
     }