Result of make

g++ -O3 -I/usr/include/xorg -I/usr/include/FL -c -MD -o main.o main.cpp
g++ -O3 -I/usr/include/xorg -I/usr/include/FL -c -MD -o aggregate.o aggregate.cpp
g++ -O3 -I/usr/include/xorg -I/usr/include/FL -c -MD -o barchart.o barchart.cpp
g++ -O3 -I/usr/include/xorg -I/usr/include/FL -c -MD -o colorlist.o colorlist.cpp
Flu_Tree_Browser.h:346: error: extra qualification ‘Flu_Tree_Browser::’ on member ‘inside_entry_area’
make: *** [colorlist.o] Error 1

//Line 346 in Flu_Tree_Browser.h is

bool Flu_Tree_Browser::inside_entry_area( int x, int y );