Partially implemented Thomas Runge's BSD port.

acinclude.m4

@@ -222,6 +222,31 @@ AC_DEFUN(AC_CURSES_ACS_ARRAY, [
 	fi
 ])
 
+dnl
+dnl Find out where is the mounted filesystem table
+dnl
+
+AC_DEFUN([AC_FIND_MFS], [
+	dnl Linux
+	AC_CHECK_FILE([/etc/mtab], [
+		mtab=/etc/mtab
+	],[
+		dnl Solaris
+		AC_CHECK_FILE([/etc/mnttab], [
+			mtab=/etc/mnttab
+		], [
+			dnl BSD
+			AC_CHECK_FILE([/etc/fstab], [
+				mtab=/etc/fstab
+			])
+		])
+	])
+	if test "$mtab"; then
+		AC_DEFINE_UNQUOTED(MTAB_FILE, ["$mtab"], [Where is your mounted filesystem table located?])
+	fi
+])
+
+
 dnl
 dnl Filesystem information detection
 dnl