-CONSTANTS
- LS_HAS_EXTENDED
- This constant is set to 1 if your kernel supports the three extended
- fields "totalhigh", "freehigh" and "mem_unit" ; and to 0 otherwise.
+EXPORT
+ The only function of this module, "sysinfo", and the constant
+ "LS_HAS_EXTENDED" are only exported on request. Functions are also
+ exported by the ":funcs" tag, and constants by ":consts".
+
+BINARY COMPATIBILITY
+ If you upgrade your kernel to a greater version than 2.3.23 on i386 or
+ 2.3.48 on any other platform, you will need to rebuild the module to
+ access the extended fields.
+
+ Moreover, since the perl hash function has changed after the 5.6
+ version, you will also need to recompile the module if you upgrade your
+ perl from a version earlier than 5.6.
+
+DEPENDENCIES
+ perl 5.6.