diff --git a/Makefile.defs b/Makefile.defs
index ed894fa..fb43f37 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -161,6 +161,18 @@ knetworkmanagervpnplugin = plasma-applet-networkmanagement-vpnc plasma-applet-ne
 packagekitgui = kpackagekit
 firewallgui = kcm_ufw
 
+ifeq ($(ARCH),x86_64)
+# x86_64 glibc vs. glibc-multilib-utils and ldconfig vs ldconfig-multilib preferences
+/sbin/ldconfig = ldconfig
+/usr/bin/gencat = glibc
+/usr/bin/getconf = glibc
+/usr/bin/iconv = glibc
+/usr/bin/locale = glibc
+/usr/bin/localedef = glibc
+rtld[GNU_HASH] = ldconfig
+rtld[GNU_UNIQUE] = ldconfig
+endif
+
 ifdef PLATFORM
 include $(TARGETSDIR)/$(TARGET)/platforms/$(PLATFORM)/Makefile.defs
 endif