Fix MSVC compilation, clean up a bit

CMakeLists.txt

@@ -76,8 +76,6 @@ find_package(Threads REQUIRED)
 find_package(SimGear 2.9.0 REQUIRED)
 find_package(GDAL REQUIRED)
 find_package(TIFF REQUIRED) # needed for SRTM
-find_library(POCO_FOUNDATION PocoFoundation REQUIRED)
-find_library(POCO_NET PocoNet REQUIRED)
 
 find_package(CGAL COMPONENTS Core REQUIRED)
 if (CGAL_FOUND)

src/Airports/GenAirports850/closedpoly.hxx

@@ -45,7 +45,6 @@ private:
     // convert the BezierPoly to a normal Poly (adding nodes for the curves)
     void CreateConvexHull( void );
     void ConvertContour( BezContour* src, tgContour& dst );
-    void ExpandContour( point_list& src, TGPolygon& dst, double dist );
     std::string GetMaterial( int surface );
 
 
@@ -64,9 +63,6 @@ private:
     // contour that nodes will be added until done
     BezContour* cur_contour;
 
-    // outer boundary as convex hull
-    // point_list hull;
-
     // Converted polygon after parsing complete
     tgPolygon pre_tess;
 

src/Airports/GenAirports850/debug.cxx

@@ -1,3 +1,4 @@
+#include <ctime>
 #include "debug.hxx"
 
 std::map<long, std::string> thread_prefix_map;

src/Airports/GenAirports850/scheduler.cxx

@@ -1,3 +1,8 @@
+#ifdef _MSC_VER
+#  include <windows.h>
+#  define sleep(x) Sleep(x*1000)
+#endif
+
 #include <cstring>
 
 #include <simgear/debug/logstream.hxx>