Fix Mac build

src/tools/cursors.mac.mm

@@ -57,9 +57,9 @@ static NSImage* imageFromURL(CFURLRef url){
 	return newImage;
 }
 
-Cursor::Cursor(const char* path, float hotSpotX, float hotSpotY){
+Cursor::Cursor(std::string path, float hotSpotX, float hotSpotY){
 	FSRef ref;
-	FSPathMakeRef((UInt8*)path, &ref, NULL);
+	FSPathMakeRef((UInt8*)path.c_str(), &ref, NULL);
 	CFURLRef imgPath = CFURLCreateFromFSRef(NULL, &ref);
 	
 	NSImage *img = imageFromURL(imgPath);

src/tools/tarball.hpp

@@ -39,7 +39,7 @@ class tarball {
 		// This seems to be necessary to compile in Visual Studio
 		// Seemingly, stringstream is non-copyable.
 		tarfile() {}
-		tarfile(tarfile& other) {
+		tarfile(const tarfile& other) {
 			contents.str("");
 			contents << other.contents.str();
 		}