Added auto-detection of DOS drive devices based on finding the
corresponding mount point in /etc/mtab or /etc/fstab.

diff --git a/configure b/configure
index 755829d..0ba7318 100755
--- a/configure
+++ b/configure
@@ -16282,6 +16282,7 @@
 
 
 
+
 for ac_header in \
 	arpa/inet.h \
 	arpa/nameser.h \
@@ -16307,6 +16308,7 @@
 	linux/serial.h \
 	linux/ucdrom.h \
 	machine/cpu.h \
+	mntent.h \
 	netdb.h \
 	netinet/in.h \
 	netinet/in_systm.h \