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This is my patch patch.0m for perl5.000.
This patch fixes all remaining problems that I am aware of, and for
which I have a solution. It also updates some hint files and
documentation.
Here's what's new:
Configure
Protect against spaces in uname -m output (unicos).
Look in <stdlib.h> for malloctype and freetype.
Check if user has void free() or int free().
Look in linux/signal.h for signal names.
MANIFEST
MANIFEST.new
Two new hint files: cxux.sh and PowerUNIX.sh.
Sorted.
README
Indicate what gets installed and where it usually goes.
Thanks to Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>
for suggesting this.
U/Myinit.U
Update extliblist comment.
U/dist3_051.pat
This file contains patches to dist 3 (PL 51) that I used to generate
Configure for perl.
U/mallocsrc.U
Look in <stdlib.h> for malloctype and freetype.
Check if user has void free() or int free().
config_h.SH
config.H
Add Free_t to handle void free() vs. int free().
ext/DynaLoader/README
Updated comment.
ext/POSIX/POSIX.pm
creat() has 2 arguments, not 3 (thanks, Paul).
ext/POSIX/POSIX.xs
Fix return type of lseek.
ext/SDBM_File/sdbm/sdbm.h
Add I_STDLIB guard on #include <stdlib.h>
ext/util/extliblist
Add note indicating this is obsolete. Don't remove it because
people might be using it for their own private extensions.
hints/PowerUNIX.sh
hints/cxux.sh
New files. Written by Tom.Horsley@mail.hcsc.com
hints/linux.sh
Simplified.
lib/ExtUtils/MakeMaker.pm
Typo fixed, only affected aix?
malloc.c
Allow for possible int free().
perl.h
pp_sys.c
util.c
If the user is not using vfork, move the #define vfork fork
util after various #include files. Since vfork() and fork() might
have different prototypes, the #define could cause a conflict in
system header files. (Reported for 386bsd.)
Makefile.SH
make realclean will remove h2xs and makeaperl (but leave behind
the .SH versions, of course).
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[editor's note: this commit combines approximate 4 months of furious
releases of Andy Dougherty and Larry Wall - see pod/perlhist.pod for
details. Andy notes that;
Alas neither my "Irwin AccuTrack" nor my DC 600A quarter-inch cartridge
backup tapes from that era seem to be readable anymore. I guess 13 years
exceeds the shelf life for that backup technology :-(.
]
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[editor's note: the sparc executables have not been included,
and emacs backup files have been removed]
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[the last one taken from the September '94 InfoMagic CD; a similar
style of cleanup as the previous commits was performed]
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[editor's note: cleaned up from the September '94 InfoMagic CD, just
like the last commit]
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[editor's note: the sparc executables have not been included, and
emacs backup files have been removed. This was reconstructed from a
tarball found on the September 1994 InfoMagic CD; the date of this is
approximate]
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[editor's note: from history.perl.org. The sparc executables
originally included in the distribution are not in this commit.]
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See patch #20.
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See patch #11.
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See patch #4.
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So far, 4.0 is still a beta test version. For the last production
version, look in pub/perl.3.0/kits@44.
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See patch #42.
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Here's the requisite dinky patch to fix the problems of the
preceding large set of patches. In this case, a couple of
malloc/free problems--one of which involved overrunning the end
of an allocated string, and the other of which involved freeing
with invalid pointers. (There was also a bug in there involving
variable magicalness propagating incorrectly, which resulting in
a dbm anomoly.)
I updated README to mention that dnix needs to avoid -O.
I added the hp malloc union overhead strut that Jan Dr{rv posted.
(Eventually this should be determined by Configure, but laziness
has its advantages.)
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See patch #29.
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Configure had difficulties if the user's path had weird components.
Now Configure appends the user's path to its own.
Some machines need <netinet/in.h> included in order to define
certain macros for packing or unpacking network order data.
On Suns, the shared library is used by default. If it doesn't
contain something contained in /lib/libc.a, then Configure was
getting things wrong (such as gethostent()). Now Configure uses
the shared library if it's there in preference to libc.a.
When gcc was selected as the compiler, the cc flags defaulted to
-fpcc_struct_return. Unfortunately, the underlines should be hyphens.
Configure figures out if BSD shadow passwords are installed and
the getpw* routines now return slightly different data in the
affected fields.
Some of the prompts in Configure with regard to gid and uid types
were unclear as to their intended use. They are now a little
clearer.
Sometimes you could change a .h file and taintperl and suidperl
didn't get remade correctly because of missing dependencies
in the Makefile.
The README file was misleading about the fact that you have to
say "make test" before you can "cd t; TEST"
The reverse operator was busted in two different ways. Should work
better now. There are now regression tests for it.
Some of the optimizations that perl does are disabled after period
of time if perl decides they aren't doing any good. One of these
caused a string to be freed that was later referenced via another
pointer, causing core dumps. The free turned out to be unnecessary,
so it was removed.
The unless modifier was broken when run under the debugger, due to
the invert() routine in perl.y inverting the logic on the DB
subroutine call instead of the command the unless was modifying.
Configure vfork test was backwards. It now works like other defines.
The numeric switch optimization was broken, and caused code to be
bypassed. This has been fixed.
A split in a subroutine that has no target splits into @_.
Unfortunately, this wrongly freed any referenced arguments passed
in through @_, causing confusing behavior later in the program.
File globbing (<foo.*>) left one orphaned string each time it
called the shell to do the glob.
RCS expanded an unintended $Header in lib/perldb.pl. This has
been fixed simply by replacing the $ with a .
Some forward declarations of static functions were missing from
malloc.c.
There's a strut in malloc for mips machines to extend the overhead
union to the size of a double. This was also enabled for sparc
machines.
DEC risc machines are reported to have a buggy memcmp. I've put
some conditional code into perl.h which I think will undef MEMCMP
appropriately.
In perl.man.4, I documented the desirability of using parens even
where they aren't strictly necessary.
I've grandfathered "format stdout" to be the same as "format STDOUT".
Unary operators can be called with no argument. The corresponding
function call form using empty parens () didn't work right, though
it did for certain functions in 2.0. It now works in 3.0.
The string ordering tests were wrong for pairs of strings in which
one string was a prefix of the other. This affected lt, le, gt,
ge, and the sort operator when used with no subroutine.
$/ didn't work with the stupid code used when STDSTDIO was undefined.
The stupid code has been replaced with smarter code that can do
it right. Special thanks to Piet van Oostrum for the code.
Goulds work better if the union in STR is at an 8 byte boundary.
The fields were rearranged somewhat to provide this.
"sort keys %a" should now work right (though parens are still
desirable for readability).
bcopy() needed a forward declaration on some machines.
In x2p/Makefile.SH, added dependency on ../config.sh so that it
gets linked down from above if it got removed for some reason.
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A few of the new features: (18 Oct)
* Perl can now handle binary data correctly and has functions to pack and unpack binary structures into arrays or lists. You can now do arbitrary ioctl functions.
* You can now pass things to subroutines by reference.
* Debugger enhancements.
* An array or associative array may now appear in a local() list.
* Array values may now be interpolated into strings.
* Subroutine names are now distinguished by prefixing with &. You can call subroutines without using do, and without passing any argument list at all.
* You can use the new -u switch to cause perl to dump core so that you can run undump and produce a binary executable image. Alternately you can use the "dump" operator after initializing any variables and such.
* You can now chop lists.
* Perl now uses /bin/csh to do filename globbing, if available. This means that filenames with spaces or other strangenesses work right.
* New functions: mkdir and rmdir, getppid, getpgrp and setpgrp, getpriority and setpriority, chroot, ioctl and fcntl, flock, readlink, lstat, rindex, pack and unpack, read, warn, dbmopen and dbmclose, dump, reverse, defined, undef.
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Some of the enhancements from Perl1 included:
* New regexp routines derived from Henry Spencer's.
o Support for /(foo|bar)/.
o Support for /(foo)*/ and /(foo)+/.
o \s for whitespace, \S for non-, \d for digit, \D nondigit
* Local variables in blocks, subroutines and evals.
* Recursive subroutine calls are now supported.
* Array values may now be interpolated into lists: unlink 'foo', 'bar', @trashcan, 'tmp';
* File globbing.
* Use of <> in array contexts returns the whole file or glob list.
* New iterator for normal arrays, foreach, that allows both read and write.
* Ability to open pipe to a forked off script for secure pipes in setuid scripts.
* File inclusion via do 'foo.pl';
* More file tests, including -t to see if, for instance, stdin is a terminal. File tests now behave in a more correct manner. You can do file tests on filehandles as well as filenames. The special filetests -T and -B test a file to see if it's text or binary.
* An eof can now be used on each file of the <> input for such purposes as resetting the line numbers or appending to each file of an inplace edit.
* Assignments can now function as lvalues, so you can say things like ($HOST = $host) =~ tr/a-z/A-Z/; ($obj = $src) =~ s/\.c$/.o/;
* You can now do certain file operations with a variable which holds the name of a filehandle, e.g. open(++$incl,$includefilename); $foo = <$incl>;
* Warnings are now available (with -w) on use of uninitialized variables and on identifiers that are mentioned only once, and on reference to various undefined things.
* There is now a wait operator.
* There is now a sort operator.
* The manual is now not lying when it says that perl is generally faster than sed. I hope.
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Some things didn't work right on System V and Pyramids.
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[ Perl is kind of designed to make awk and sed semi-obsolete. This posting
will include the first 10 patches after the main source. The following
description is lifted from Larry's manpage. --r$ ]
Perl is a interpreted language optimized for scanning arbitrary text
files, extracting information from those text files, and printing
reports based on that information. It's also a good language for many
system management tasks. The language is intended to be practical
(easy to use, efficient, complete) rather than beautiful (tiny,
elegant, minimal). It combines (in the author's opinion, anyway) some
of the best features of C, sed, awk, and sh, so people familiar with
those languages should have little difficulty with it. (Language
historians will also note some vestiges of csh, Pascal, and even
BASIC-PLUS.) Expression syntax corresponds quite closely to C
expression syntax. If you have a problem that would ordinarily use sed
or awk or sh, but it exceeds their capabilities or must run a little
faster, and you don't want to write the silly thing in C, then perl may
be for you. There are also translators to turn your sed and awk
scripts into perl scripts.
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