Guard occurences of ttexture with an #if.

src/image.cpp

@@ -620,6 +620,7 @@ surface load_from_disk(const locator &loc)
 	}
 }
 
+#if SDL_VERSION_ATLEAST(2,0,0)
 sdl::ttexture load_texture(const locator &loc, const int access)
 {
 	surface img = load_from_disk(loc);
@@ -629,6 +630,7 @@ sdl::ttexture load_texture(const locator &loc, const int access)
 		return sdl::ttexture();
 	}
 }
+#endif
 
 manager::manager() {}
 
@@ -897,6 +899,7 @@ surface get_image(const image::locator& i_locator, TYPE type)
 	return res;
 }
 
+#if SDL_VERSION_ATLEAST(2,0,0)
 sdl::ttexture get_texture(const locator& loc, TYPE type)
 {
 	if (loc.is_void()) {
@@ -942,6 +945,7 @@ sdl::ttexture get_texture(const locator& loc, TYPE type)
 
 	return result;
 }
+#endif
 
 surface get_lighted_image(const image::locator& i_locator, const light_string& ls, TYPE type)
 {

src/image.hpp

@@ -126,14 +126,18 @@ namespace image {
 
 	surface load_from_disk(const locator &loc);
 
+#if SDL_VERSION_ATLEAST(2,0,0)
 	sdl::ttexture load_texture(const locator &loc,
 							   const int access = SDL_TEXTUREACCESS_STATIC);
+#endif
 
 	size_t hash_value(const locator::value&);
 
 
 	typedef cache_type<surface> image_cache;
+#if SDL_VERSION_ATLEAST(2,0,0)
 	typedef cache_type<sdl::ttexture> texture_cache;
+#endif
 	typedef cache_type<bool> bool_cache;
 
 	typedef std::map<t_translation::t_terrain, surface> mini_terrain_cache_map;
@@ -206,8 +210,9 @@ namespace image {
 	///note that this surface must be freed by the user by calling
 	///SDL_FreeSurface()
 	surface get_image(const locator& i_locator, TYPE type=UNSCALED);
-
+#if SDL_VERSION_ATLEAST(2,0,0)
 	sdl::ttexture get_texture(const locator& loc, TYPE type=UNSCALED);
+#endif
 
 	///function to get the surface corresponding to an image.
 	///after applying the lightmap encoded in ls