For Perl_Slab_Alloc(), eliminate the unused parameter 'm'.

[p5sagit/p5-mst-13.2.git] / pod / perlrun.pod

diff --git a/pod/perlrun.pod b/pod/perlrun.pod
index b973779..7ab7912 100644 (file)
--- a/pod/perlrun.pod
+++ b/pod/perlrun.pod
@@ -314,6 +314,11 @@ are as follows; listing the letters is equal to summing the numbers.
               variables (the LC_ALL, LC_TYPE, and LANG, in the order
               of decreasing precedence) -- if the variables indicate
               UTF-8, then the selected "IOEioA" are in effect
+    a   256   Set ${^UTF8CACHE} to -1, to run the UTF-8 caching code in
+              debugging mode.
+
+=for documenting_the_underdocumented
+perl.h gives W/128 as PERL_UNICODE_WIDESYSCALLS "/* for Sarathy */"
 
 =for todo
 perltodo mentions Unicode in %ENV and filenames. I guess that these will be
@@ -355,10 +360,10 @@ switch was therefore "recycled".)
 X<-c>
 
 causes Perl to check the syntax of the program and then exit without
-executing it.  Actually, it I<will> execute C<BEGIN>, C<CHECK>, and
-C<use> blocks, because these are considered as occurring outside the
-execution of your program.  C<INIT> and C<END> blocks, however, will
-be skipped.
+executing it.  Actually, it I<will> execute C<BEGIN>, C<UNITCHECK>,
+C<CHECK>, and C<use> blocks, because these are considered as occurring
+outside the execution of your program.  C<INIT> and C<END> blocks,
+however, will be skipped.
 
 =item B<-d>
 X<-d> X<-dt>
@@ -1018,14 +1023,17 @@ X<PERL5LIB>
 A list of directories in which to look for Perl library
 files before looking in the standard library and the current
 directory.  Any architecture-specific directories under the specified
-locations are automatically included if they exist.  If PERL5LIB is not
-defined, PERLLIB is used.  Directories are separated (like in PATH) by
-a colon on unixish platforms and by a semicolon on Windows (the proper
-path separator being given by the command C<perl -V:path_sep>).
+locations are automatically included if they exist (this lookup
+being done at interpreter startup time.)
+
+If PERL5LIB is not defined, PERLLIB is used.  Directories are separated
+(like in PATH) by a colon on unixish platforms and by a semicolon on
+Windows (the proper path separator being given by the command C<perl
+-V:path_sep>).
 
 When running taint checks (either because the program was running setuid
-or setgid, or the B<-T> switch was used), neither variable is used.
-The program should instead say:
+or setgid, or the B<-T> or B<-t> switch was specified), neither variable
+is used. The program should instead say:
 
     use lib "/my/directory";
 
@@ -1050,7 +1058,9 @@ emphasise their similarity to variable "attributes". But the code that parses
 layer specification strings (which is also used to decode the PERLIO
 environment variable) treats the colon as a separator.
 
-An unset or empty PERLIO is equivalent to C<:stdio>.
+An unset or empty PERLIO is equivalent to the default set of layers for
+your platform, for example C<:unix:perlio> on UNIX-like systems
+and C<:unix:crlf> on Windows and other DOS-like systems.
 
 The list becomes the default for I<all> perl's IO. Consequently only built-in
 layers can appear in this list, as external layers (such as :encoding()) need