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Flashbench does not compile on Ubuntu 12.04 64bit:

flashbench/dev.c:35: undefined reference to `clock_gettime'
collect2: ld returned 1 exit status

To fix this, the flag -lrt has to go at the end of the linking line of flashbench, ie

diff --git a/Makefile b/Makefile
index 8fbd119..4c04f5e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 CC     := gcc
-CFLAGS := -O2 -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-paramet
-LDFLAGS := -lrt
+CFLAGS := -O2 -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-paramet
 all: flashbench erase
@@ -8,7 +8,7 @@ dev.o: dev.c dev.h
 vm.o: vm.c vm.h dev.h
 flashbench.o: flashbench.c vm.h dev.h
-flashbench: flashbench.o dev.o vm.o
+flashbench: flashbench.o dev.o vm.o -lrt
 erase: erase.o
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