FLTK/Compilation

The fltk2-config command gives useful information.

Usage: fltk2-config [OPTIONS]
Options:
	[--prefix[=DIR]]  return/set where FLTK is installed
	[--exec-prefix[=DIR]]
	[--version]
	[--api-version]

Options telling what we are doing:
	[--use-gl]        use GL
	[--use-images]    use extra image formats (PNG, JPEG)
	[--use-glut]      use glut compatibility layer
	[--use-forms]     use forms compatibility layer

Options telling what information we request:
	[--cflags]        return flags to compile C using FLTK
	[--cxxflags]      return flags to compile C++ using FLTK
	[--ldflags]       return flags to link against FLTK
	[--ldstaticflags] return flags to link against static FLTK library
                                          even if there are DSOs installed
	[--libs]          return FLTK libraries full path for dependencies
	[--cxx]           return name of C++ compiler used to build FLTK
	[--cc]            return name of C compiler used to build FLTK

Option to compile and link an application:
	[-g]              compile the program with debugging information
	[--compile program.cxx]
        [--post program]

For instance, the --cxxflags and --ldflags options give the flags required to compile and link your application.