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This patch does the following things:
1. Fix various bonehead errors I introduced in patches a-g.
2. Incorporate MakeMaker changes to bring it up to version 4.01 (mostly).
3. Stick in things I forgot in patches a-g (e.g. AIX).
4. Some minor additional cleanup in x2p/ for even pickier compilers.
5. More hints updates (hpux and next).
6. Include newest dl_hpux.xs.
I didn't have time to
1. Fix the overlapping strcpy() in op.c
2. Restore h2xs to Larry's original design to process <>.
3. take out unnecessary "use Config" in installperl.
4. Add in vms patches.
I forgot to
[If I remembered what i forgot, I wouldn't have forgotten it. :]
I deliberately decided *not* to
1. Touch pod/*
2. deal with overloading
Specifically, here's what's included:
Configure
Regenerated to be sure it's up-to-date.
Makefile.SH
Build extension libraries right into lib/auto/whatever.
Don't set CCCDLFLAGS since we don't use it anyway.
Take care to avoid modifying lib/Config.pm without reason
Visit DynaLoader for `make clean'. (Previously only did
so for `make realclean'.)
@echo "Note that make realclean does not delete config.sh"
Include config.h dependency.
U/i_db.U
config_h.SH
config.H
Remove unwanted quotes around db_hashtype and db_prefixtype.
configpm
Allow specification of alternate name for lib/Config.pm,
so the makefile mv-if-diff trick saves needless re-making.
ext/DynaLoader/DynaLoader.pm
Updated warning messages and comments.
ext/DynaLoader/dl_hpux.xs
Updated to version 2.1. Now uses bootstrap files.
ext/util/make_ext
Explicitly use #!/bin/sh to start it up. This is useful
for testing make_ext.
Improve & simplify Nested::Extension::Processing.
More robust handling of `make clean'.
hints/hpux_9.sh
Support both the bundled and unbundled compilers.
hints/next_3_2.sh
Back to using -posix rather than POSIX_SOURCE. And that only
for ext/POSIX/POSIX.xs.
installperl
Special ranlib treatment for NeXT, which gets confused about
timestamps in libraries, even when you just copy the library.
Supply missing '$' in samepath() function.
lib/AutoSplit.pm
New parameters.
lib/ExtUtils/MakeMaker.pm
Upgraded from 3.8 to 4.01.
lib/ExtUtils/xsubpp
Documentation changed from man to pod.
lib/Getopt/Long.pm
Avoid typo warning.
Drop unused $optx.
lib/Text/Tabs.pm
Fix package name.
makedepend.SH
Explicitly start with $startsh.
Catch cpp that prints # <stdin> instead of line numbers.
perl.h
Fix bonehead mistake that ended up calling my_fmod even if
not needed.
perl_exp.SH
also add symbols from interp.sym
proto.h
Delete 2 redundant prototypes (newBINOP and newUNOP).
util.c
Add (char *) casts to unsigned char args to bcmp.
x2p/a2p.h
Rearrange order of <string?.h> and bcopy & bzero stuff.
Change a few function prototypes to void, to reflect actual
usage.
x2p/a2py.c
Change a few function types to void, to reflect actual usage.
x2p/handy.h
Make *alloc declarations match those in x2p/util.c.
x2p/util.c
Make *alloc declarations match those in x2p/handy.h.
x2p/walk.c
Add a (Size_t) cast for comparison of 1 to the result of strlen().
Thanks to all who's work is included here. Little of it is mine.
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This patch fixes various non-broken things in the x2p/ directory.
Mostly, I've supplied function prototypes to satisfy particularly
picky compilers.
I've also updated Makefile.SH to know that the byacc-generated a2p.c
is now included with the distribution so that we no longer need to go
looking for yacc/bison/byacc and deal with various library issues or
command line options to support those various compiler compilers.
I've included a2p.c generated by byacc-1.9. Larry, feel free to
use your own from byacc-1.8 instead.
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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: from history.perl.org. The sparc executables
originally included in the distribution are not in this commit.]
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See patch #4.
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Subject: Configure now handles defaults much better
Subject: Configure now knows if config.sh was built on this machine
Subject: Configure now checks file existence more efficiently
Subject: Configure now handles stupid SCO csh
Configure has been heavily revised. Many of the tests that used
to simply force a decision now check that decision against the
previous value of the variable, and offer to let you change it.
The default now is to keep the old value, so that you don't lose
information from your previous run.
Because of this, it's now more important to know whether, in fact,
config.sh was produced on this machine and on this version of
the operating system. config.sh now contains a lastuname variable
which contains the output of uname -a. If this matches the current
output of uname -a, Configure defaults to including the old config.sh.
Otherwise not. If there is no valid config.sh, then Configure looks
defaults for the current architecture in the hints/ subdirectory
instead. The guesswork I've done in this section of code is
phenomenal, so you'll have to instruct me where I've misparsed
the output of uname (a problem in portability all of its own).
Subject: Configure now differentiates getgroups() type from getgid() type
Subject: Configure now figures out malloc ptr type
Subject: Configure now does better on sprintf()
Configure was assuming that the array of values returned from
getgroups was the same type as the gids returned by other system
calls. Unfortunately, reality set in. Likewise for malloc() and
sprintf(), which there is only one portable way to find out the return
value of: try it one way or the other, and see if it blows up.
Subject: C flags are now settable on a per-file basis
Subject: reduced maximum branch distance in eval.c
Certain compilers and/or optimizers get bozoed out by large
compilation units, or by large structures within those units.
Previously, you either had to change the compiler flags for all
the files, or do hairy editing in Makefile.SH and remake the Makefile,
necessitating a make depend. Now there is a script called cflags.SH
whose duty it is to return the proper CFLAGS for any given C file.
You can change the flags in just one spot now and they will be
immediately reflected in the next make (or even in the current
make, if one is running). Eventually I expect that any of the hints
files could modify cflags.SH, but I haven't done that yet.
The particular problem of long jump offsets in eval.c has been at
least partially alleviated by locating some of the labels in the
middle of the function instead of at the end. This still doesn't
help the poor Vax when you compile with -g, since it puts a jump
to the end of the function to allocate the stack frame and then
jumps back to the beginning of the function to execute it. For
now Vaxen will have to stick with -O or hand assemble eval.c and
teval.c with a -J switch.
Subject: fixed "Bad free" error
Subject: fixed debugger coredump on subroutines
Subject: regexec only allocated space for 9 subexpresssions
These are problems that were reported on the net and had unofficial
patches. Now they have official patches. Be sure to patch a
copy of your files without the unofficial patches, or the patch
program will get confused.
Subject: you may now use "die" and "caller" in a signal handler
Someone pointed out that using die to raise an exception out
of a signal handler trashed the expression value stack if the
exception was caught by eval. While fixing that, I also fixed
the longstanding problem that signal handlers didn't have a normal
call frame, which prevented the caller function from working.
Subject: fixed undefined environ problem
Subject: hopefully straightened out some of the Xenix mess
Subject: random cleanup in cpp namespace
Just keeping up with the current progress in non-standardization.
Subject: fixed failed fork to return undef as documented
The open function returns undef on failed implicit forks. The Book
assumed that the same was true of an explicit fork. I've made the
function behave like the Book says. It's a pity there's no way
to have an undefined value that returns -1 in a numeric context
but false in a boolean context...
Subject: generalized the yaccpar fixer some
Thanks to Andy Dougherty, perly.fixer now knows how to fix SVR3 2.2's
yaccpar code to do dynamic parse stack allocation. He also made it
easy for other people to insert their code there. Hooray!
Subject: find2perl sometimes needs to stat on the 2nd leg of a -o
Subject: find2perl didn't correctly handle switches with an argument of 0
In attempting to delay the lstat to the last moment, in case a filename
could be rejected on the basis of its name, find2perl neglected to
take into account the fact that control might pass to the 2nd half
of a -o without executing all of the 1st half, in particular without
executing the lstat.
find2perl was wisely removing leading zeroes from numbers that would
mistakenly be interpreted as octal numbers by Perl. Unfortunately,
this caused it to delete the number 0 entirely.
Subject: fixed dumpvar not to dump internal debugging info
Subject: substr($ENV{"PATH"},0,0) = "/foo:" didn't modify environment
Subject: $foo .= <BAR> could cause core dump for certain lengths of $foo
Subject: perl -de "print" wouldn't stop at the first statement
Random glitchy little things.
Subject: I'm at NetLabs now
I'm now working for NetLabs, Inc., and I hadn't changed my
address everywhere.
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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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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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[ 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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