Undefined symbols for architecture x86_64:
"_NSDefaultRunLoopMode", referenced from:
fl_open_display() in Fl_cocoa.o
fl_ready() in Fl_cocoa.o
fl_wait(double) in Fl_cocoa.o
"_OBJC_CLASS_$_NSArray", referenced from:
objc-class-ref in Fl_cocoa.o
"_OBJC_CLASS_$_NSData", referenced from:
objc-class-ref in Fl_Sys_Menu_Bar.o
"_OBJC_CLASS_$_NSDate", referenced from:
objc-class-ref in Fl_cocoa.o
"_OBJC_CLASS_$_NSDictionary", referenced from:
objc-class-ref in Fl_cocoa.o
"_OBJC_CLASS_$_NSURL", referenced from:
objc-class-ref in Fl_Native_File_Chooser_MAC.o
ld: symbol(s) not found for architecture x86_64
78623f492c