i got the same error.
resolving this by a svn check.
> Trying to compile above version on ubuntu feisty fawn
>
> Used configure script
>
> During make process receieved following error:
>
> Compiling Image.cxx...
> Image.cxx:99: error: cannot declare variable ânameâ to be of abstract
> type âfltk::Symbolâ
> ../fltk/Symbol.h:35: note: because the following virtual functions are pure
> within âfltk::Symbolâ:
> ../fltk/Symbol.h:55: note: virtual void fltk::Symbol::_draw(const
> fltk::Rectangle&) const
> Image.cxx:99: error: no matching function for call to
> âfltk::Symbol::Symbol(fltk::PixelType)â
> ../fltk/Symbol.h:48: note: candidates are: fltk::Symbol::Symbol(const char*)
> ../fltk/Symbol.h:41: note: fltk::Symbol::Symbol(const
> fltk::Symbol&)
> Image.cxx:99: error: cannot declare variable âpixeltype_â to be of
> abstract type âfltk::Symbolâ
> ../fltk/Symbol.h:35: note: since type âfltk::Symbolâ has pure virtual
> functions
> ../fltk/Symbol.h:41: error: âfltk::Symbol::Symbol(const fltk::Symbol&)â
> is private
> Image.cxx:99: error: within this context
> Image.cxx:99: error: invalid conversion from âintâ to âconst char*â
> Image.cxx:99: error: initializing argument 1 of
> âfltk::Symbol::Symbol(const char*)â
> Image.cxx:99: error: cannot allocate an object of abstract type âconst
> fltk::Symbolâ
> ../fltk/Symbol.h:35: note: since type âconst fltk::Symbolâ has pure
> virtual functions
> Image.cxx:99: error: cannot declare variable âw_â to be of abstract type
> âfltk::Symbolâ
> ../fltk/Symbol.h:35: note: since type âfltk::Symbolâ has pure virtual
> functions
> ../fltk/Symbol.h:41: error: âfltk::Symbol::Symbol(const fltk::Symbol&)â
> is private
> Image.cxx:99: error: within this context
> Image.cxx:99: error: invalid conversion from âintâ to âconst char*â
> Image.cxx:99: error: initializing argument 1 of
> âfltk::Symbol::Symbol(const char*)â
> Image.cxx:99: error: cannot allocate an object of abstract type âconst
> fltk::Symbolâ
> ../fltk/Symbol.h:35: note: since type âconst fltk::Symbolâ has pure
> virtual functions
> Image.cxx:99: error: cannot declare variable âh_â to be of abstract type
> âfltk::Symbolâ
> ../fltk/Symbol.h:35: note: since type âfltk::Symbolâ has pure virtual
> functions
> Image.cxx:253: error: a function-definition is not allowed here before
> â{â token
> make[1]: *** [Image.o] Error 1
> make: *** [all] Error 2
>
>
> What to do know??
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