Add shared lib target.

src/conio/GNUmakefile

@@ -50,3 +50,11 @@ endif
 	@echo Creating $@ ...
 	$(QUIET)$(AR) rc $@ $(OBJS)
 	$(QUIET)$(RANLIB) $@
+
+ifdef STATIC
+$(CIOLIB-MT_SHLIB_BUILD): $(MTOBJODIR)$(DIRSEP)console$(OFILE).static $(MTOBJODIR) $(OBJS)
+else
+$(CIOLIB-MT_SHLIB_BUILD): $(MTOBJODIR)$(DIRSEP)console$(OFILE).dynamic $(MTOBJODIR) $(OBJS)
+endif
+	@echo Creating $@
+	$(QUIET)$(MKSHLIB) $(LDFLAGS) $(OBJS) $(SHLIBOPTS) -o $@

src/conio/targets.mk

 # conio/targets.mk
 CIOLIB-MT_BUILD	=	$(LIBODIR)$(DIRSEP)$(LIBPREFIX)ciolib_mt$(LIBFILE)
+CIOLIB-MT_SHLIB_BUILD	=	$(LIBODIR)$(DIRSEP)$(LIBPREFIX)ciolib_mt$(SOFILE)
 
 mtlib:	$(MTOBJODIR) $(LIBODIR) $(CIOLIB-MT_BUILD)
+
+dl-mtlib: $(MTOBJODIR) $(LIBODIR) $(CIOLIB-MT_SHLIB_BUILD)
+