Ouch, ouch, ouch!
Since when is the presence of a directory an indicator for whether
a 64- or 32-bit library is to be built. Or inspected, for that
matter.

---
 libmultipath/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: multipath-tools-0.4.8/libmultipath/Makefile
===================================================================
--- multipath-tools-0.4.8.orig/libmultipath/Makefile
+++ multipath-tools-0.4.8/libmultipath/Makefile
@@ -14,7 +14,7 @@ OBJS = memory.o parser.o vector.o devmap
        log.o configure.o structs_vec.o sysfs.o prio.o checkers.o \
        lock.o waiter.o
 
-LIBDM_API_FLUSH = $(shell if test -d /lib64 ; then objdump -T /lib64/libdevmapper.so* ; else objdump -T /lib/libdevmapper.so.* ; fi | grep -c dm_task_no_flush)
+LIBDM_API_FLUSH = $(shell objdump -T ${LIB}/libdevmapper.so* | grep -c dm_task_no_flush)
 
 CFLAGS += -D_GNU_SOURCE
 ifneq ($(strip $(LIBDM_API_FLUSH)),0)