Revert "Removed extinit.o from main programs"

This reverts commit ac86fcbfd0.

This change broke "--disable-shared --with-static-linked-ext".

template/Makefile.in

@@ -277,7 +277,7 @@ miniruby$(EXEEXT):
 $(PROGRAM):
 		@$(RM) $@
 		$(ECHO) linking $@
-		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
+		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
 		$(Q) $(POSTLINK)
 
 PRE_LIBRUBY_UPDATE = [ -n "$(LIBRUBY_SO_UPDATE)" ] || $(gnumake:yes=exec) $(RM) $(LIBRUBY_EXTS)

win32/Makefile.sub

@@ -1093,9 +1093,8 @@ miniruby.rc:
 !if "$(PROGRAM)" != ""
 $(PROGRAM):	$(MAINOBJ) $(LIBRUBY_SO) $(RUBY_INSTALL_NAME).res
 		$(ECHO) linking $(@:\=/)
-		$(Q) $(PURIFY) $(CC) $(MAINOBJ) \
-			$(RUBY_INSTALL_NAME).res $(OUTFLAG)$@ $(LIBRUBYARG) \
-			-link $(LDFLAGS) $(XLDFLAGS)
+		$(Q) $(PURIFY) $(CC) $(MAINOBJ) $(EXTOBJS) $(RUBY_INSTALL_NAME).res \
+			$(OUTFLAG)$@ $(LIBRUBYARG) -link $(LDFLAGS) $(XLDFLAGS)
 		$(Q) $(LDSHARED_0)
 		$(Q) $(LDSHARED_1)
 		$(Q) $(LDSHARED_2)