diff --git a/bench b/bench
index b700704..38145ae 100755
--- a/bench
+++ b/bench
@@ -30,7 +30,7 @@
 # Use is subject to license terms.
 #
 
-bench_version=0.4.0
+bench_version=0.4.1
 libmicro_version=`bin/tattle -V`
 
 case $libmicro_version in
@@ -65,7 +65,14 @@ mkdir -p $VDIR1 $VDIR2
 
 touch $IFILE
 
-ARCH=`arch -k`
+DISTRO=$(cat /etc/issue 2> /dev/null | head -n +1 | awk '{print $1}')
+
+if [ "$DISTRO" = "Debian" -o "$DISTRO" = "Ubuntu" ]
+then
+   ARCH=`arch`
+else
+   ARCH=`arch -k`
+fi
 
 # produce benchmark header for easier comparisons
 
diff --git a/bench.sh b/bench.sh
index 7aba977..38145ae 100644
--- a/bench.sh
+++ b/bench.sh
@@ -65,7 +65,14 @@ mkdir -p $VDIR1 $VDIR2
 
 touch $IFILE
 
-ARCH=`arch -k`
+DISTRO=$(cat /etc/issue 2> /dev/null | head -n +1 | awk '{print $1}')
+
+if [ "$DISTRO" = "Debian" -o "$DISTRO" = "Ubuntu" ]
+then
+   ARCH=`arch`
+else
+   ARCH=`arch -k`
+fi
 
 # produce benchmark header for easier comparisons
 
diff --git a/cascade_flock.c b/cascade_flock.c
index 27d95d1..33607d2 100644
--- a/cascade_flock.c
+++ b/cascade_flock.c
@@ -46,6 +46,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <fcntl.h>
+#include <sys/file.h>
 
 #include "libmicro.h"
 
diff --git a/mmap.c b/mmap.c
index 44b8b58..14123f5 100644
--- a/mmap.c
+++ b/mmap.c
@@ -33,7 +33,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <fcntl.h>
-#include <strings.h>
+#include <string.h>
 
 #include "libmicro.h"
 
diff --git a/mprotect.c b/mprotect.c
index 5d08b9e..f621ed2 100644
--- a/mprotect.c
+++ b/mprotect.c
@@ -33,7 +33,7 @@
 #include <stdio.h>
 #include <sys/mman.h>
 #include <fcntl.h>
-#include <strings.h>
+#include <string.h>
 
 #include "libmicro.h"
 
diff --git a/munmap.c b/munmap.c
index 7979dbb..0a50f9d 100644
--- a/munmap.c
+++ b/munmap.c
@@ -33,7 +33,7 @@
 #include <stdio.h>
 #include <sys/mman.h>
 #include <fcntl.h>
-#include <strings.h>
+#include <string.h>
 
 #include "libmicro.h"