If the environment variable "EDITION" is defined, it is used to search at
a non-default location for icons to be compiled into the R'n'D executable
when building the game for the Windows platform.
PROGBASE = rocksndiamonds
PROGNAME = ../$(PROGBASE)
+EDITION ?= default
+
# -----------------------------------------------------------------------------
# configuring platform
ICON_BASEPATH = ../Special/Icons/windows_icons
ifeq ($(PLATFORM),cross-win32)
-ICON_PATH = $(ICON_BASEPATH)/default
+ICON_PATH = $(ICON_BASEPATH)/$(EDITION)
ICON = $(ICONBASE).o
endif