X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pod%2Fperlport.pod;h=70b95b05ab57ad6a4bc22530c7b6b6faa9208f16;hb=b1866b2db57c4aa1ee77325f2658722f6a7befa2;hp=7f779c955e9816ca3b3af5fcc09c2264a5b9dd07;hpb=4375e838ae24b385ae79fa7b6918e613bedaaee6;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/pod/perlport.pod b/pod/perlport.pod
index 7f779c9..70b95b0 100644
--- a/pod/perlport.pod
+++ b/pod/perlport.pod
@@ -181,10 +181,12 @@ numbers to secondary storage such as a disk file or tape.
 
 Conflicting storage orders make utter mess out of the numbers.  If a
 little-endian host (Intel, VAX) stores 0x12345678 (305419896 in
-decimal), a big-endian host (Motorola, MIPS, Sparc, PA) reads it as
-0x78563412 (2018915346 in decimal).  To avoid this problem in network
-(socket) connections use the C<pack> and C<unpack> formats C<n>
-and C<N>, the "network" orders.  These are guaranteed to be portable.
+decimal), a big-endian host (Motorola, Sparc, PA) reads it as
+0x78563412 (2018915346 in decimal).  Alpha and MIPS can be either:
+Digital/Compaq used/uses them in little-endian mode; SGI/Cray uses
+them in big-endian mode.  To avoid this problem in network (socket)
+connections use the C<pack> and C<unpack> formats C<n> and C<N>, the
+"network" orders.  These are guaranteed to be portable.
 
 You can explore the endianness of your platform by unpacking a
 data structure packed in native format such as:
@@ -681,7 +683,7 @@ The ActiveState Pages, http://www.activestate.com/
 =item *
 
 The Cygwin environment for Win32; F<README.cygwin> (installed 
-as L<perlcygwin>), http://sourceware.cygnus.com/cygwin/
+as L<perlcygwin>), http://sources.redhat.com/cygwin/
 
 =item *
 
@@ -1042,7 +1044,8 @@ Also see:
 
 *
 
-L<perlos390>, F<README.os390>, F<README.posix-bc>, F<README.vmesa>
+L<perlos390>, F<README.os390>, F<perlposix-bc>, F<README.vmesa>,
+L<perlebcdic>.
 
 =item *
 
@@ -1053,7 +1056,7 @@ general usage issues for all EBCDIC Perls.  Send a message body of
 =item  *
 
 AS/400 Perl information at
-ttp://as400.rochester.ibm.com/
+http://as400.rochester.ibm.com/
 as well as on CPAN in the F<ports/> directory.
 
 =back
@@ -1640,6 +1643,10 @@ Not implemented. (S<Mac OS>, Win32, VMS, S<RISC OS>, VOS, VM/ESA)
 
 =item stat
 
+Platforms that do not have rdev, blksize, or blocks will return these
+as '', so numeric comparison or manipulation of these fields may cause
+'not numeric' warnings.
+
 mtime and atime are the same thing, and ctime is creation time instead of
 inode change time. (S<Mac OS>)
 
@@ -1650,6 +1657,9 @@ device and inode are not necessarily reliable.  (VMS)
 mtime, atime and ctime all return the last modification time.  Device and
 inode are not necessarily reliable.  (S<RISC OS>)
 
+dev, rdev, blksize, and blocks are not available.  inode is not
+meaningful and will differ between stat calls on the same file.  (os2)
+
 =item symlink OLDFILE,NEWFILE
 
 Not implemented. (Win32, VMS, S<RISC OS>)
@@ -1746,7 +1756,7 @@ two seconds. (Win32)
 Not implemented. (S<Mac OS>, VOS)
 
 Can only be applied to process handles returned for processes spawned
-using C<system(1, ...)>. (Win32)
+using C<system(1, ...)> or pseudo processes created with C<fork()>. (Win32)
 
 Not useful. (S<RISC OS>)