In der CompilerFlags.pb steht:
; this file should contain constant definitions only
; here, compiler switches are set, both for customizing the compilation
; and for os specific values
;
; This is shared with the GUI Debugger
; NOTE: The three special constants (#DEMO, #GTKVersion, #DEBUG) are now set by the
; makefile via commandline, so no "MakeFlags.pb" is needed anymore.
;
; The following make targets are available:
; make (build the normal IDE)
; make demo (build a demo ide)
; make debug (build a debug ide) (with linenumbering/gtk debug)
;
; make gtk2 (build the gtk2 version) (creates a purebasic_gtk2 file)
; make demo_gtk2 (build the gtk2 demo)
; make debug_gtk2 (build the gtk2 debug version)
;
; NOTE: To build the standalone debugger, you must run make for the IDE first, as it requires
; the MakeFlags.pb file too!
/Downloads/purebasic-master/PureBasicIDE
$ make gtk2
make: *** Keine Regel, um „gtk2“ zu erstellen. Schluss.