mac build fixes

indra/newview/lldirpicker.cpp

@@ -92,7 +92,7 @@ LLDirPicker::~LLDirPicker()
 	// nothing
 }
 
-BOOL LLDirPicker::getDir(std::string filename, bool blocking)
+BOOL LLDirPicker::getDir(std::string* filename, bool blocking)
 {
 	if( mLocked )
 	{
@@ -175,7 +175,7 @@ void LLDirPicker::reset()
 
 
 //static
-BOOL LLDirPicker::getDir(std::string* filename)
+BOOL LLDirPicker::getDir(std::string* filename, bool blocking)
 {
     LLFilePicker::ELoadFilter filter=LLFilePicker::FFLOAD_DIRECTORY;
     
@@ -209,7 +209,7 @@ void LLDirPicker::reset()
 		mFilePicker->reset();
 }
 
-BOOL LLDirPicker::getDir(std::string* filename)
+BOOL LLDirPicker::getDir(std::string* filename, bool blocking)
 {
 	reset();
 
@@ -264,7 +264,7 @@ void LLDirPicker::reset()
 {
 }
 
-BOOL LLDirPicker::getDir(std::string* filename)
+BOOL LLDirPicker::getDir(std::string* filename, bool blocking)
 {
 	return FALSE;
 }
@@ -300,7 +300,7 @@ void LLDirPickerThread::run()
 
 	LLDirPicker picker;
 
-	if (picker.getDir(mProposedName, blocking))
+	if (picker.getDir(&mProposedName, blocking))
 	{
 		mResponses.push_back(picker.getDirName());
 	}	

indra/newview/lldirpicker.h

@@ -60,7 +60,7 @@ public:
 	// calling this before main() is undefined
 	static LLDirPicker& instance( void ) { return sInstance; }
 
-	BOOL getDir(std::string filename, bool blocking = true);
+	BOOL getDir(std::string* filename, bool blocking = true);
 	std::string getDirName();
 
 	// clear any lists of buffers or whatever, and make sure the dir