Add tool to generate unicode font for greek and hiragana (jp)

tools/8x8fonts/Makefile

@@ -0,0 +1,43 @@
+# There is no uname under windows, but we can guess we are there with the COMSPEC env.var
+# Windows specific
+ifdef ComSpec
+# sometimes, it is ComSpec, sometimes it is COMSPEC
+COMSPEC = $(ComSpec)
+endif
+ifdef COMSPEC
+WIN32 = 1
+endif
+
+PKG_CONFIG = $(shell which pkg-config)
+MKDIR = mkdir -p
+
+ifeq ($(WIN32),1)
+PKG_CONFIG := PKG_CONFIG_PATH=../../3rdparty/usr-win32/lib/pkgconfig $(PKG_CONFIG)
+endif
+
+CFLAGS = -Wall
+CFLAGS += $(shell $(PKG_CONFIG) --cflags libpng)
+LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libpng)
+LDLIBS += $(shell $(PKG_CONFIG) --libs-only-l libpng)
+
+FONTDIR = ../../share/grafx2/skins/
+FONTFILES = unicode_0390-03C9.png unicode_3040-309F.png
+FONTPATHS = $(addprefix $(FONTDIR), $(FONTFILES))
+
+BINDIR = ../../bin
+BIN = $(BINDIR)/generate_png_fonts
+
+.PHONY:	all clean
+
+all:	$(FONTPATHS)
+
+clean:
+	$(RM) *.o $(BIN)
+	$(RM) $(FONTPATHS)
+
+$(BIN):	generate_png_fonts.o
+	$(MKDIR) $(BINDIR)
+	$(CC) $(LDFLAGS) -o $@ $^ $(LOADLIBES) $(LDLIBS)
+
+$(FONTPATHS):	$(BIN)
+	$(BIN) $(FONTDIR)