Minor Linux fixes (thanks Azzy)

Originally committed to SVN as r539.

core/Makefile.am

@@ -34,7 +34,6 @@ aegisub_SOURCES = about.cpp \
 	audio_provider_lavc.cpp \
 	audio_provider_ram.cpp \
 	audio_provider_stream.cpp \
-	auto4_base.cpp \
 	automation.cpp \
 	automation_filter.cpp \
 	automation_gui.cpp \

core/ass_file.cpp

@@ -80,7 +80,7 @@ void AssFile::Load (const wxString _filename,const wxString charset) {
 #ifdef WIN32
 		file = _tfopen(_filename.c_str(), _T("r"));
 #else
-		file = fopen(_filrname.mb_str(wxConvFileName), "r");
+		file = fopen(_filename.mb_str(*wxConvFileName), "r");
 #endif
 		if (!file) {
 			throw _T("Unable to open file \"") + _filename + _T("\". Check if it exists and if you have permissions to read it.");

core/video_display.cpp

@@ -138,6 +138,7 @@ void  VideoDisplay::UpdateSize() {
 		h = provider->GetHeight();
 
 		// Set the size for this control
+		SetSizeHints(w,h,w,h);
 		SetClientSize(w,h);
 		int _w,_h;
 		GetSize(&_w,&_h);