don't link against the libtool archive to avoid recording ${D} in RUNPATH

--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -113,6 +113,7 @@
 	if [ ! -d $(DESTDIR)$(bindir) ] ; then $(mkinstalldirs) $(DESTDIR)$(bindir) ; fi
 	case "@host_os@" in \
 	  hpux*) $(CC) $(LDFLAGS) $(CFLAGS) $(iconv_LDFLAGS) iconv.@OBJEXT@ ../srclib/libicrt.a -L$(DESTDIR)$(libdir) -liconv @LIBINTL@ $(OBJECTS_RES_@WOE32@) `if test -n '$(DESTDIR)'; then echo " -Wl,+b -Wl,$(libdir)"; fi` -o iconv$(EXEEXT);; \
+	  *) $(CC) $(LDFLAGS) $(CFLAGS) $(iconv_LDFLAGS) iconv.@OBJEXT@ ../srclib/libicrt.a -L$(DESTDIR)$(libdir) -liconv @LIBINTL@ $(OBJECTS_RES_@WOE32@) -o iconv$(EXEEXT);; \
 	  *) $(LIBTOOL_LINK) $(CC) $(LDFLAGS) $(CFLAGS) $(iconv_LDFLAGS) iconv.@OBJEXT@ ../srclib/libicrt.a $(DESTDIR)$(libdir)/libiconv.la @LTLIBINTL@ $(OBJECTS_RES_@WOE32@) -o iconv$(EXEEXT);; \
 	esac
 	$(INSTALL_PROGRAM_ENV) $(LIBTOOL_INSTALL) $(INSTALL_PROGRAM) iconv$(EXEEXT) $(DESTDIR)$(bindir)/iconv$(EXEEXT)