#!/usr/bin/perl -w
use strict;
-use Getopt::Long;
+use Getopt::Long qw(:config bundling no_auto_abbrev);
+use Pod::Usage;
+use Config;
+use Carp;
-my @targets = qw(miniperl lib/Config.pm perl test_prep);
+my @targets
+ = qw(config.sh config.h miniperl lib/Config.pm Fcntl perl test_prep);
-my $target = 'test_prep';
-my $j = '9';
-my $test_should_pass = 1;
-my $clean = 1;
-my $one_liner;
-my $match;
+my $cpus;
+if (open my $fh, '<', '/proc/cpuinfo') {
+ while (<$fh>) {
+ ++$cpus if /^processor\s+:\s+\d+$/;
+ }
+} elsif (-x '/sbin/sysctl') {
+ $cpus = 1 + $1 if `/sbin/sysctl hw.ncpu` =~ /^hw\.ncpu: (\d+)$/;
+} elsif (-x '/usr/bin/getconf') {
+ $cpus = 1 + $1 if `/usr/bin/getconf _NPROCESSORS_ONLN` =~ /^(\d+)$/;
+}
+
+my %options =
+ (
+ jobs => defined $cpus ? $cpus + 1 : 2,
+ 'expect-pass' => 1,
+ clean => 1, # mostly for debugging this
+ );
+
+my $linux64 = `uname -sm` eq "Linux x86_64\n" ? '64' : '';
+
+my @paths;
+
+if ($^O eq 'linux') {
+ # This is the search logic for a multi-arch library layout
+ # added to linux.sh in commits 40f026236b9959b7 and dcffd848632af2c7.
+ my $gcc = -x '/usr/bin/gcc' ? '/usr/bin/gcc' : 'gcc';
-sub usage {
- die "$0: [--target=...] [-j=4] [--expect-pass=0|1] thing to test";
+ foreach (`$gcc -print-search-dirs`) {
+ next unless /^libraries: =(.*)/;
+ foreach (split ':', $1) {
+ next if m/gcc/;
+ next unless -d $_;
+ s!/$!!;
+ push @paths, $_;
+ }
+ }
}
-unless(GetOptions('target=s' => \$target,
- 'jobs|j=i' => \$j,
- 'expect-pass=i' => \$test_should_pass,
- 'expect-fail' => sub { $test_should_pass = 0; },
- 'clean!' => \$clean, # mostly for debugging this
- 'one-liner|e=s' => \$one_liner,
- 'match=s' => \$match,
+push @paths, map {$_ . $linux64} qw(/usr/local/lib /lib /usr/lib);
+
+my %defines =
+ (
+ usedevel => '',
+ optimize => '-g',
+ cc => (`ccache --version`, $?) ? 'cc' : 'ccache cc',
+ ld => 'cc',
+ ($linux64 ? (libpth => \@paths) : ()),
+ );
+
+unless(GetOptions(\%options,
+ 'target=s', 'make=s', 'jobs|j=i', 'expect-pass=i',
+ 'expect-fail' => sub { $options{'expect-pass'} = 0; },
+ 'clean!', 'one-liner|e=s', 'c', 'l', 'w', 'match=s',
+ 'no-match=s' => sub {
+ $options{match} = $_[1];
+ $options{'expect-pass'} = 0;
+ },
+ 'force-manifest', 'force-regen', 'test-build', 'validate',
+ 'check-args', 'check-shebang!', 'usage|help|?', 'A=s@',
+ 'D=s@' => sub {
+ my (undef, $val) = @_;
+ if ($val =~ /\A([^=]+)=(.*)/s) {
+ $defines{$1} = length $2 ? $2 : "\0";
+ } else {
+ $defines{$val} = '';
+ }
+ },
+ 'U=s@' => sub {
+ $defines{$_[1]} = undef;
+ },
)) {
- usage();
+ pod2usage(exitval => 255, verbose => 1);
}
-my $exe = $target eq 'perl' || $target eq 'test_prep' ? 'perl' : 'miniperl';
-my $expected = $target eq 'test_prep' ? 'perl' : $target;
+my ($target, $j, $match) = @options{qw(target jobs match)};
+
+@ARGV = ('sh', '-c', 'cd t && ./perl TEST base/*.t')
+ if $options{validate} && !@ARGV;
+
+pod2usage(exitval => 0, verbose => 1) if $options{usage};
+pod2usage(exitval => 255, verbose => 1)
+ unless @ARGV || $match || $options{'test-build'} || defined $options{'one-liner'};
+pod2usage(exitval => 255, verbose => 1)
+ if !$options{'one-liner'} && ($options{l} || $options{w});
+
+check_shebang($ARGV[0])
+ if $options{'check-shebang'} && @ARGV && !$options{match};
+
+exit 0 if $options{'check-args'};
+
+=head1 NAME
+
+bisect.pl - use git bisect to pinpoint changes
+
+=head1 SYNOPSIS
+
+ # When did this become an error?
+ .../Porting/bisect.pl -e 'my $a := 2;'
+ # When did this stop being an error?
+ .../Porting/bisect.pl --expect-fail -e '1 // 2'
+ # When did this stop matching?
+ .../Porting/bisect.pl --match '\b(?:PL_)hash_seed_set\b'
+ # When did this start matching?
+ .../Porting/bisect.pl --expect-fail --match '\buseithreads\b'
+ # When did this test program stop working?
+ .../Porting/bisect.pl -- ./perl -Ilib ../test_prog.pl
+ # When did this first become valid syntax?
+ .../Porting/bisect.pl --target=miniperl --end=v5.10.0 \
+ --expect-fail -e 'my $a := 2;'
+ # What was the last revision to build with these options?
+ .../Porting/bisect.pl --test-build -Dd_dosuid
+
+=head1 DESCRIPTION
+
+Together F<bisect.pl> and F<bisect-runner.pl> attempt to automate the use
+of C<git bisect> as much as possible. With one command (and no other files)
+it's easy to find out
+
+=over 4
+
+=item *
+
+Which commit caused this example code to break?
+
+=item *
+
+Which commit caused this example code to start working?
+
+=item *
+
+Which commit added the first to match this regex?
+
+=item *
+
+Which commit removed the last to match this regex?
+
+=back
+
+usually without needing to know which versions of perl to use as start and
+end revisions.
+
+By default F<bisect.pl> will process all options, then use the rest of the
+command line as arguments to list C<system> to run a test case. By default,
+the test case should pass (exit with 0) on earlier perls, and fail (exit
+non-zero) on I<blead>. F<bisect.pl> will use F<bisect-runner.pl> to find the
+earliest stable perl version on which the test case passes, check that it
+fails on blead, and then use F<bisect-runner.pl> with C<git bisect run> to
+find the commit which caused the failure.
+
+Because the test case is the complete argument to C<system>, it is easy to
+run something other than the F<perl> built, if necessary. If you need to run
+the perl built, you'll probably need to invoke it as C<./perl -Ilib ...>
+
+You need a clean checkout to run a bisect, and you can't use the checkout
+which contains F<Porting/bisect.pl> (because C<git bisect>) will check out
+a revision before F<Porting/bisect-runner.pl> was added, which
+C<git bisect run> needs). If your working checkout is called F<perl>, the
+simplest solution is to make a local clone, and run from that. I<i.e.>:
+
+ cd ..
+ git clone perl perl2
+ cd perl2
+ ../perl/Porting/bisect.pl ...
+
+By default, F<bisect-runner.pl> will automatically disable the build of
+L<DB_File> for commits earlier than ccb44e3bf3be2c30, as it's not practical
+to patch DB_File 1.70 and earlier to build with current Berkeley DB headers.
+(ccb44e3bf3be2c30 was in September 1999, between 5.005_62 and 5.005_63.)
+If your F<db.h> is old enough you can override this with C<-Unoextensions>.
+
+=head1 OPTIONS
+
+=over 4
+
+=item *
+
+--start I<commit-ish>
+
+Earliest revision to test, as a I<commit-ish> (a tag, commit or anything
+else C<git> understands as a revision). If not specified, F<bisect.pl> will
+search stable perl releases until it finds one where the test case passes.
+The default is to search from 5.002 to 5.14.0. If F<bisect.pl> detects that
+the checkout is on a case insensitive file system, it will search from
+5.005 to 5.14.0
+
+=item *
+
+--end I<commit-ish>
+
+Most recent revision to test, as a I<commit-ish>. If not specified, defaults
+to I<blead>.
+
+=item *
+
+--target I<target>
+
+F<Makefile> target (or equivalent) needed, to run the test case. If specified,
+this should be one of
+
+=over 4
+
+=item *
+
+I<config.sh>
+
+Just run F<./Configure>
+
+=item *
+
+I<config.h>
+
+Run the various F<*.SH> files to generate F<Makefile>, F<config.h>, I<etc>.
+
+=item *
+
+I<miniperl>
+
+Build F<miniperl>.
+
+=item *
+
+I<lib/Config.pm>
+
+Use F<miniperl> to build F<lib/Config.pm>
+
+=item *
+
+I<Fcntl>
+
+Build F<lib/auto/Fcntl/Fnctl.so> (strictly, C<.$Config{so}>). As L<Fcntl>
+is simple XS module present since 5.000, this provides a fast test of
+whether XS modules can be built. Note, XS modules are built by F<miniperl>,
+hence this target will not build F<perl>.
+
+=item *
+
+I<perl>
+
+Build F<perl>. This also builds pure-Perl modules in F<cpan>, F<dist> and
+F<ext>. XS modules (such as L<Fcntl>) are not built.
+
+=item *
+
+I<test_prep>
+
+Build everything needed to run the tests. This is the default if we're
+running test code, but is time consuming, as it means building all
+XS modules. For older F<Makefile>s, the previous name of C<test-prep>
+is automatically substituted. For very old F<Makefile>s, C<make test> is
+run, as there is no target provided to just get things ready, and for 5.004
+and earlier the tests run very quickly.
+
+=back
+
+=item *
+
+--one-liner 'code to run'
+
+=item *
+
+-e 'code to run'
+
+Example code to run, just like you'd use with C<perl -e>.
+
+This prepends C<./perl -Ilib -e 'code to run'> to the test case given,
+or F<./miniperl> if I<target> is C<miniperl>.
+
+(Usually you'll use C<-e> instead of providing a test case in the
+non-option arguments to F<bisect.pl>)
+
+C<-E> intentionally isn't supported, as it's an error in 5.8.0 and earlier,
+which interferes with detecting errors in the example code itself.
+
+=item *
+
+-c
+
+Add C<-c> to the command line, to cause perl to exit after syntax checking.
+
+=item *
+
+-l
+
+Add C<-l> to the command line with C<-e>
+
+This will automatically append a newline to every output line of your testcase.
+Note that you can't specify an argument to F<perl>'s C<-l> with this, as it's
+not feasible to emulate F<perl>'s somewhat quirky switch parsing with
+L<Getopt::Long>. If you need the full flexibility of C<-l>, you need to write
+a full test case, instead of using C<bisect.pl>'s C<-e> shortcut.
+
+=item *
+
+-w
+
+Add C<-w> to the command line with C<-e>
+
+It's not valid to pass C<-c>, C<-l> or C<-w> to C<bisect.pl> unless you are
+also using C<-e>
+
+=item *
+
+--expect-fail
+
+The test case should fail for the I<start> revision, and pass for the I<end>
+revision. The bisect run will find the first commit where it passes.
+
+=item *
+
+-Dnoextensions=Encode
+
+=item *
+
+-Uusedevel
+
+=item *
+
+-Accflags=-DNO_MATHOMS
+
+Arguments to pass to F<Configure>. Repeated C<-A> arguments are passed
+through as is. C<-D> and C<-U> are processed in order, and override
+previous settings for the same parameter. F<bisect-runner.pl> emulates
+C<-Dnoextensions> when F<Configure> itself does not provide it, as it's
+often very useful to be able to disable some XS extensions.
+
+=item *
+
+--make I<make-prog>
+
+The C<make> command to use. If this not set, F<make> is used. If this is
+set, it also adds a C<-Dmake=...> else some recursive make invocations
+in extensions may fail. Typically one would use this as C<--make gmake>
+to use F<gmake> in place of the system F<make>.
+
+=item *
+
+--jobs I<jobs>
+
+=item *
+
+-j I<jobs>
+
+Number of C<make> jobs to run in parallel. If F</proc/cpuinfo> exists and
+can be parsed, or F</sbin/sysctl> exists and reports C<hw.ncpu>, or
+F</usr/bin/getconf> exists and reports C<_NPROCESSORS_ONLN> defaults to 1 +
+I<number of CPUs>. Otherwise defaults to 2.
+
+=item *
+
+--match pattern
+
+=item *
-unshift @ARGV, "./$exe", '-Ilib', '-e', $one_liner if defined $one_liner;
+--no-match pattern
-usage() unless @ARGV || $match;
+Instead of running a test program to determine I<pass> or I<fail>,
+C<--match> will pass if the given regex matches, and hence search for the
+commit that removes the last matching file. C<--no-match> inverts the test,
+to search for the first commit that adds files that match.
-die "$0: Can't build $target" unless grep {@targets} $target;
+The remaining command line arguments are treated as glob patterns for files
+to match against. If none are specified, then they default as follows:
+
+=over 4
+
+=item *
+
+If no I<target> is specified, the match is against all files in the
+repository (which is fast).
+
+=item *
+
+If a I<target> is specified, that target is built, and the match is against
+only the built files.
+
+=back
+
+Treating the command line arguments as glob patterns should not cause
+problems, as the perl distribution has never shipped or built files with
+names that contain characters which are globbing metacharacters.
+
+Anything which is not a readable file is ignored, instead of generating an
+error. (If you want an error, run C<grep> or C<ack> as a test case). This
+permits one to easily search in a file that changed its name. For example:
+
+ .../Porting/bisect.pl --match 'Pod.*Functions' 'pod/buildtoc*'
+
+C<--no-match ...> is implemented as C<--expect-fail --match ...>
+
+=item *
+
+--test-build
+
+Test that the build completes, without running any test case.
+
+By default, if the build for the desired I<target> fails to complete,
+F<bisect-runner.pl> reports a I<skip> back to C<git bisect>, the assumption
+being that one wants to find a commit which changed state "builds && passes"
+to "builds && fails". If instead one is interested in which commit broke the
+build (possibly for particular F<Configure> options), use I<--test-build>
+to treat a build failure as a failure, not a "skip".
+
+Often this option isn't as useful as it first seems, because I<any> build
+failure will be reported to C<git bisect> as a failure, not just the failure
+that you're interested in. Generally, to debug a particular problem, it's
+more useful to use a I<target> that builds properly at the point of interest,
+and then a test case that runs C<make>. For example:
+
+ .../Porting/bisect.pl --start=perl-5.000 --end=perl-5.002 \
+ --expect-fail --force-manifest --target=miniperl make perl
+
+will find the first revision capable of building L<DynaLoader> and then
+F<perl>, without becoming confused by revisions where F<miniperl> won't
+even link.
+
+=item *
+
+--force-manifest
+
+By default, a build will "skip" if any files listed in F<MANIFEST> are not
+present. Usually this is useful, as it avoids false-failures. However, there
+are some long ranges of commits where listed files are missing, which can
+cause a bisect to abort because all that remain are skipped revisions.
+
+In these cases, particularly if the test case uses F<miniperl> and no modules,
+it may be more useful to force the build to continue, even if files
+F<MANIFEST> are missing.
+
+=item *
+
+--force-regen
+
+Run C<make regen_headers> before building F<miniperl>. This may fix a build
+that otherwise would skip because the generated headers at that revision
+are stale. It's not the default because it conceals this error in the true
+state of such revisions.
+
+=item *
+
+--expect-pass [0|1]
+
+C<--expect-pass=0> is equivalent to C<--expect-fail>. I<1> is the default.
+
+=item *
+
+--no-clean
+
+Tell F<bisect-runner.pl> not to clean up after the build. This allows one
+to use F<bisect-runner.pl> to build the current particular perl revision for
+interactive testing, or for debugging F<bisect-runner.pl>.
+
+Passing this to F<bisect.pl> will likely cause the bisect to fail badly.
+
+=item *
+
+--validate
+
+Test that all stable revisions can be built. By default, attempts to build
+I<blead>, I<v5.14.0> .. I<perl-5.002> (or I<perl5.005> on a case insensitive
+file system). Stops at the first failure, without
+cleaning the checkout. Use I<--start> to specify the earliest revision to
+test, I<--end> to specify the most recent. Useful for validating a new
+OS/CPU/compiler combination. For example
+
+ ../perl/Porting/bisect.pl --validate -le 'print "Hello from $]"'
+
+If no testcase is specified, the default is to use F<t/TEST> to run
+F<t/base/*.t>
+
+=item *
+
+--check-args
+
+Validate the options and arguments, and exit silently if they are valid.
+
+=item *
+
+--check-shebang
+
+Validate that the test case isn't an executable file with a
+C<#!/usr/bin/perl> line (or similar). As F<bisect-runner.pl> does B<not>
+prepend C<./perl> to the test case, a I<#!> line specifying an external
+F<perl> binary will cause the test case to always run with I<that> F<perl>,
+not the F<perl> built by the bisect runner. Likely this is not what you
+wanted. If your test case is actually a wrapper script to run other
+commands, you should run it with an explicit interpreter, to be clear. For
+example, instead of C<../perl/Porting/bisect.pl ~/test/testcase.pl> you'd
+run C<../perl/Porting/bisect.pl /usr/bin/perl ~/test/testcase.pl>
+
+=item *
+
+--usage
+
+=item *
+
+--help
+
+=item *
+
+-?
+
+Display the usage information and exit.
+
+=back
+
+=cut
+
+die "$0: Can't build $target" if defined $target && !grep {@targets} $target;
$j = "-j$j" if $j =~ /\A\d+\z/;
+if (exists $options{make}) {
+ if (!exists $defines{make}) {
+ $defines{make} = $options{make};
+ }
+} else {
+ $options{make} = 'make';
+}
+
+# Sadly, however hard we try, I don't think that it will be possible to build
+# modules in ext/ on x86_64 Linux before commit e1666bf5602ae794 on 1999/12/29,
+# which updated to MakeMaker 3.7, which changed from using a hard coded ld
+# in the Makefile to $(LD). On x86_64 Linux the "linker" is gcc.
+
+sub open_or_die {
+ my $file = shift;
+ my $mode = @_ ? shift : '<';
+ open my $fh, $mode, $file or croak("Can't open $file: $!");
+ ${*$fh{SCALAR}} = $file;
+ return $fh;
+}
+
+sub close_or_die {
+ my $fh = shift;
+ return if close $fh;
+ croak("Can't close: $!") unless ref $fh eq 'GLOB';
+ croak("Can't close ${*$fh{SCALAR}}: $!");
+}
+
sub extract_from_file {
my ($file, $rx, $default) = @_;
- open my $fh, '<', $file or die "Can't open $file: $!";
+ my $fh = open_or_die($file);
while (<$fh>) {
my @got = $_ =~ $rx;
return wantarray ? @got : $got[0]
return;
}
+sub edit_file {
+ my ($file, $munger) = @_;
+ local $/;
+ my $fh = open_or_die($file);
+ my $orig = <$fh>;
+ die "Can't read $file: $!" unless defined $orig && close $fh;
+ my $new = $munger->($orig);
+ return if $new eq $orig;
+ $fh = open_or_die($file, '>');
+ print $fh $new or die "Can't print to $file: $!";
+ close_or_die($fh);
+}
+
+# AIX supplies a pre-historic patch program, which certainly predates Linux
+# and is probably older than NT. It can't cope with unified diffs. Meanwhile,
+# it's hard enough to get git diff to output context diffs, let alone git show,
+# and nearly all the patches embedded here are unified. So it seems that the
+# path of least resistance is to convert unified diffs to context diffs:
+
+sub process_hunk {
+ my ($from_out, $to_out, $has_from, $has_to, $delete, $add) = @_;
+ ++$$has_from if $delete;
+ ++$$has_to if $add;
+
+ if ($delete && $add) {
+ $$from_out .= "! $_\n" foreach @$delete;
+ $$to_out .= "! $_\n" foreach @$add;
+ } elsif ($delete) {
+ $$from_out .= "- $_\n" foreach @$delete;
+ } elsif ($add) {
+ $$to_out .= "+ $_\n" foreach @$add;
+ }
+}
+
+# This isn't quite general purpose, as it can't cope with
+# '\ No newline at end of file'
+sub ud2cd {
+ my $diff_in = shift;
+ my $diff_out = '';
+
+ # Stuff before the diff
+ while ($diff_in =~ s/\A(?!\*\*\* )(?!--- )([^\n]*\n?)//ms && length $1) {
+ $diff_out .= $1;
+ }
+
+ if (!length $diff_in) {
+ die "That didn't seem to be a diff";
+ }
+
+ if ($diff_in =~ /\A\*\*\* /ms) {
+ warn "Seems to be a context diff already\n";
+ return $diff_out . $diff_in;
+ }
+
+ # Loop for files
+ FILE: while (1) {
+ if ($diff_in =~ s/\A((?:diff |index )[^\n]+\n)//ms) {
+ $diff_out .= $1;
+ next;
+ }
+ if ($diff_in !~ /\A--- /ms) {
+ # Stuff after the diff;
+ return $diff_out . $diff_in;
+ }
+ $diff_in =~ s/\A([^\n]+\n?)//ms;
+ my $line = $1;
+ die "Can't parse '$line'" unless $line =~ s/\A--- /*** /ms;
+ $diff_out .= $line;
+ $diff_in =~ s/\A([^\n]+\n?)//ms;
+ $line = $1;
+ die "Can't parse '$line'" unless $line =~ s/\A\+\+\+ /--- /ms;
+ $diff_out .= $line;
+
+ # Loop for hunks
+ while (1) {
+ next FILE
+ unless $diff_in =~ s/\A\@\@ (-([0-9]+),([0-9]+) \+([0-9]+),([0-9]+)) \@\@[^\n]*\n?//;
+ my ($hunk, $from_start, $from_count, $to_start, $to_count)
+ = ($1, $2, $3, $4, $5);
+ my $from_end = $from_start + $from_count - 1;
+ my $to_end = $to_start + $to_count - 1;
+ my ($from_out, $to_out, $has_from, $has_to, $add, $delete);
+ while (length $diff_in && ($from_count || $to_count)) {
+ die "Confused in $hunk" unless $diff_in =~ s/\A([^\n]*)\n//ms;
+ my $line = $1;
+ $line = ' ' unless length $line;
+ if ($line =~ /^ .*/) {
+ process_hunk(\$from_out, \$to_out, \$has_from, \$has_to,
+ $delete, $add);
+ undef $delete;
+ undef $add;
+ $from_out .= " $line\n";
+ $to_out .= " $line\n";
+ --$from_count;
+ --$to_count;
+ } elsif ($line =~ /^-(.*)/) {
+ push @$delete, $1;
+ --$from_count;
+ } elsif ($line =~ /^\+(.*)/) {
+ push @$add, $1;
+ --$to_count;
+ } else {
+ die "Can't parse '$line' as part of hunk $hunk";
+ }
+ }
+ process_hunk(\$from_out, \$to_out, \$has_from, \$has_to,
+ $delete, $add);
+ die "No lines in hunk $hunk"
+ unless length $from_out || length $to_out;
+ die "No changes in hunk $hunk"
+ unless $has_from || $has_to;
+ $diff_out .= "***************\n";
+ $diff_out .= "*** $from_start,$from_end ****\n";
+ $diff_out .= $from_out if $has_from;
+ $diff_out .= "--- $to_start,$to_end ----\n";
+ $diff_out .= $to_out if $has_to;
+ }
+ }
+}
+
+{
+ my $use_context;
+
+ sub placate_patch_prog {
+ my $patch = shift;
+
+ if (!defined $use_context) {
+ my $version = `patch -v 2>&1`;
+ die "Can't run `patch -v`, \$?=$?, bailing out"
+ unless defined $version;
+ if ($version =~ /Free Software Foundation/) {
+ $use_context = 0;
+ } elsif ($version =~ /Header: patch\.c,v.*\blwall\b/) {
+ # The system patch is older than Linux, and probably older than
+ # Windows NT.
+ $use_context = 1;
+ } else {
+ # Don't know.
+ $use_context = 0;
+ }
+ }
+
+ return $use_context ? ud2cd($patch) : $patch;
+ }
+}
+
+sub apply_patch {
+ my ($patch, $what, $files) = @_;
+ $what = 'patch' unless defined $what;
+ unless (defined $files) {
+ $patch =~ m!^--- a/(\S+)\n\+\+\+ b/\1!sm;
+ $files = " $1";
+ }
+ my $patch_to_use = placate_patch_prog($patch);
+ open my $fh, '|-', 'patch', '-p1' or die "Can't run patch: $!";
+ print $fh $patch_to_use;
+ return if close $fh;
+ print STDERR "Patch is <<'EOPATCH'\n${patch}EOPATCH\n";
+ print STDERR "\nConverted to a context diff <<'EOCONTEXT'\n${patch_to_use}EOCONTEXT\n"
+ if $patch_to_use ne $patch;
+ die "Can't $what$files: $?, $!";
+}
+
+sub apply_commit {
+ my ($commit, @files) = @_;
+ my $patch = `git show $commit @files`;
+ if (!defined $patch) {
+ die "Can't get commit $commit for @files: $?" if @files;
+ die "Can't get commit $commit: $?";
+ }
+ apply_patch($patch, "patch $commit", @files ? " for @files" : '');
+}
+
+sub revert_commit {
+ my ($commit, @files) = @_;
+ my $patch = `git show -R $commit @files`;
+ if (!defined $patch) {
+ die "Can't get revert commit $commit for @files: $?" if @files;
+ die "Can't get revert commit $commit: $?";
+ }
+ apply_patch($patch, "revert $commit", @files ? " for @files" : '');
+}
+
+sub checkout_file {
+ my ($file, $commit) = @_;
+ $commit ||= 'blead';
+ system "git show $commit:$file > $file </dev/null"
+ and die "Could not extract $file at revision $commit";
+}
+
+sub check_shebang {
+ my $file = shift;
+ return unless -e $file;
+ if (!-x $file) {
+ die "$file is not executable.
+system($file, ...) is always going to fail.
+
+Bailing out";
+ }
+ my $fh = open_or_die($file);
+ my $line = <$fh>;
+ return unless $line =~ m{\A#!(/\S+/perl\S*)\s};
+ die "$file will always be run by $1
+It won't be tested by the ./perl we build.
+If you intended to run it with that perl binary, please change your
+test case to
+
+ $1 @ARGV
+
+If you intended to test it with the ./perl we build, please change your
+test case to
+
+ ./perl -Ilib @ARGV
+
+[You may also need to add -- before ./perl to prevent that -Ilib as being
+parsed as an argument to bisect.pl]
+
+Bailing out";
+}
+
sub clean {
- if ($clean) {
+ if ($options{clean}) {
# Needed, because files that are build products in this checked out
# version might be in git in the next desired version.
- system 'git clean -dxf';
+ system 'git clean -dxf </dev/null';
# Needed, because at some revisions the build alters checked out files.
# (eg pod/perlapi.pod). Also undoes any changes to makedepend.SH
- system 'git reset --hard HEAD';
+ system 'git reset --hard HEAD </dev/null';
}
}
clean();
- my $got = ($test_should_pass ? !$ret : $ret) ? 'good' : 'bad';
+ my $got = ($options{'expect-pass'} ? !$ret : $ret) ? 'good' : 'bad';
if ($ret) {
print "$got - $fail $desc\n";
} else {
exit($got eq 'bad');
}
-# Not going to assume that system perl is yet new enough to have autodie
-system 'git clean -dxf' and die;
-
-if ($match) {
- my $matches;
+sub match_and_exit {
+ my ($target, @globs) = @_;
+ my $matches = 0;
my $re = qr/$match/;
- foreach my $file (`git ls-files`) {
- chomp $file;
- open my $fh, '<', $file or die "Can't open $file: $!";
+ my @files;
+
+ if (@globs) {
+ require File::Glob;
+ foreach (sort map { File::Glob::bsd_glob($_)} @globs) {
+ if (!-f $_ || !-r _) {
+ warn "Skipping matching '$_' as it is not a readable file\n";
+ } else {
+ push @files, $_;
+ }
+ }
+ } else {
+ local $/ = "\0";
+ @files = defined $target ? `git ls-files -o -z`: `git ls-files -z`;
+ chomp @files;
+ }
+
+ foreach my $file (@files) {
+ my $fh = open_or_die($file);
while (<$fh>) {
if ($_ =~ $re) {
++$matches;
- $_ .= "\n" unless /\n\z/;
- print "$file: $_";
+ if (tr/\t\r\n -~\200-\377//c) {
+ print "Binary file $file matches\n";
+ } else {
+ $_ .= "\n" unless /\n\z/;
+ print "$file: $_";
+ }
}
}
- close $fh or die "Can't close $file: $!";
+ close_or_die($fh);
}
- report_and_exit(!$matches, 'matches for', 'no matches for', $match);
+ report_and_exit(!$matches,
+ $matches == 1 ? '1 match for' : "$matches matches for",
+ 'no matches for', $match);
+}
+
+# Not going to assume that system perl is yet new enough to have autodie
+system 'git clean -dxf </dev/null' and die;
+
+if (!defined $target) {
+ match_and_exit(undef, @ARGV) if $match;
+ $target = 'test_prep';
+}
+
+skip('no Configure - is this the //depot/perlext/Compiler branch?')
+ unless -f 'Configure';
+
+my $case_insensitive;
+{
+ my ($dev_C, $ino_C) = stat 'Configure';
+ die "Could not stat Configure: $!" unless defined $dev_C;
+ my ($dev_c, $ino_c) = stat 'configure';
+ ++$case_insensitive
+ if defined $dev_c && $dev_C == $dev_c && $ino_C == $ino_c;
}
# This changes to PERL_VERSION in 4d8076ea25903dcb in 1999
qr/^#define\s+(?:PERL_VERSION|PATCHLEVEL)\s+(\d+)\s/,
0);
-# There was a bug in makedepend.SH which was fixed in version 96a8704c.
-# Symptom was './makedepend: 1: Syntax error: Unterminated quoted string'
-# Remove this if you're actually bisecting a problem related to makedepend.SH
-system 'git show blead:makedepend.SH > makedepend.SH' and die;
-
-my @paths = qw(/usr/local/lib64 /lib64 /usr/lib64);
+patch_Configure();
+patch_hints();
# if Encode is not needed for the test, you can speed up the bisect by
# excluding it from the runs with -Dnoextensions=Encode
# ccache is an easy win. Remove it if it causes problems.
-my @ARGS = ('-des', '-Dusedevel', '-Doptimize=-g', '-Dcc=ccache gcc',
- '-Dld=gcc', "-Dlibpth=@paths");
-
# Commit 1cfa4ec74d4933da adds ignore_versioned_solibs to Configure, and sets it
# to true in hints/linux.sh
# On dromedary, from that point on, Configure (by default) fails to find any
last;
}
}
- push @ARGS, "-Dlibs=@libs";
+ $defines{libs} = \@libs unless exists $defines{libs};
+}
+
+$defines{usenm} = undef
+ if $major < 2 && !exists $defines{usenm};
+
+my ($missing, $created_dirs);
+($missing, $created_dirs) = force_manifest()
+ if $options{'force-manifest'};
+
+my @ARGS = '-dEs';
+foreach my $key (sort keys %defines) {
+ my $val = $defines{$key};
+ if (ref $val) {
+ push @ARGS, "-D$key=@$val";
+ } elsif (!defined $val) {
+ push @ARGS, "-U$key";
+ } elsif (!length $val) {
+ push @ARGS, "-D$key";
+ } else {
+ $val = "" if $val eq "\0";
+ push @ARGS, "-D$key=$val";
+ }
}
+push @ARGS, map {"-A$_"} @{$options{A}};
# </dev/null because it seems that some earlier versions of Configure can
# call commands in a way that now has them reading from stdin (and hanging)
my $pid = fork;
die "Can't fork: $!" unless defined $pid;
if (!$pid) {
- # Before dfe9444ca7881e71, Configure would refuse to run if stdin was not a
- # tty. With that commit, the tty requirement was dropped for -de and -dE
- open STDIN, '<', '/dev/null' if $major > 4;
+ open STDIN, '<', '/dev/null';
+ # If a file in MANIFEST is missing, Configure asks if you want to
+ # continue (the default being 'n'). With stdin closed or /dev/null,
+ # it exits immediately and the check for config.sh below will skip.
exec './Configure', @ARGS;
die "Failed to start Configure: $!";
}
waitpid $pid, 0
or die "wait for Configure, pid $pid failed: $!";
-# Skip if something went wrong with Configure
-skip('no config.sh') unless -f 'config.sh';
+patch_SH();
-# Correct makefile for newer GNU gcc
-# Only really needed if you comment out the use of blead's makedepend.SH
-{
- local $^I = "";
- local @ARGV = qw(makefile x2p/makefile);
- while (<>) {
- print unless /<(?:built-in|command|stdin)/;
- }
+if (-f 'config.sh') {
+ # Emulate noextensions if Configure doesn't support it.
+ fake_noextensions()
+ if $major < 10 && $defines{noextensions};
+ system './Configure -S </dev/null' and die;
+}
+
+if ($target =~ /config\.s?h/) {
+ match_and_exit($target, @ARGV) if $match && -f $target;
+ report_and_exit(!-f $target, 'could build', 'could not build', $target)
+ if $options{'test-build'};
+
+ skip("could not build $target") unless -f $target;
+
+ my $ret = system @ARGV;
+ report_and_exit($ret, 'zero exit from', 'non-zero exit from', "@ARGV");
+} elsif (!-f 'config.sh') {
+ # Skip if something went wrong with Configure
+
+ skip('could not build config.sh');
+}
+
+force_manifest_cleanup($missing, $created_dirs)
+ if $missing;
+
+if($options{'force-regen'}
+ && extract_from_file('Makefile', qr/\bregen_headers\b/)) {
+ # regen_headers was added in e50aee73b3d4c555, patch.1m for perl5.001
+ # It's not worth faking it for earlier revisions.
+ system "make regen_headers </dev/null"
+ and die;
}
+patch_C();
+patch_ext();
+
# Parallel build for miniperl is safe
-system "make $j miniperl";
+system "$options{make} $j miniperl </dev/null";
+
+# This is the file we expect make to create
+my $expected_file = $target =~ /^test/ ? 't/perl'
+ : $target eq 'Fcntl' ? "lib/auto/Fcntl/Fcntl.$Config{so}"
+ : $target;
+# This is the target we tell make to build in order to get $expected_file
+my $real_target = $target eq 'Fcntl' ? $expected_file : $target;
if ($target ne 'miniperl') {
# Nearly all parallel build issues fixed by 5.10.0. Untrustworthy before that.
- $j = '' unless $major > 10;
+ $j = '' if $major < 10;
- if ($target eq 'test_prep') {
+ if ($real_target eq 'test_prep') {
if ($major < 8) {
# test-prep was added in 5.004_01, 3e3baf6d63945cb6.
# renamed to test_prep in 2001 in 5fe84fd29acaf55c.
# earlier than that, just make test. It will be fast enough.
- $target = extract_from_file('Makefile.SH', qr/^(test[-_]prep):/,
- 'test');
+ $real_target = extract_from_file('Makefile.SH',
+ qr/^(test[-_]prep):/,
+ 'test');
}
}
- system "make $j $target";
+ system "$options{make} $j $real_target </dev/null";
+}
+
+my $expected_file_found = $expected_file =~ /perl$/
+ ? -x $expected_file : -r $expected_file;
+
+if ($expected_file_found && $expected_file eq 't/perl') {
+ # Check that it isn't actually pointing to ../miniperl, which will happen
+ # if the sanity check ./miniperl -Ilib -MExporter -e '<?>' fails, and
+ # Makefile tries to run minitest.
+
+ # Of course, helpfully sometimes it's called ../perl, other times .././perl
+ # and who knows if that list is exhaustive...
+ my ($dev0, $ino0) = stat 't/perl';
+ my ($dev1, $ino1) = stat 'perl';
+ unless (defined $dev0 && defined $dev1 && $dev0 == $dev1 && $ino0 == $ino1) {
+ undef $expected_file_found;
+ my $link = readlink $expected_file;
+ warn "'t/perl' => '$link', not 'perl'";
+ die "Could not realink t/perl: $!" unless defined $link;
+ }
+}
+
+if ($options{'test-build'}) {
+ report_and_exit(!$expected_file_found, 'could build', 'could not build',
+ $real_target);
+} elsif (!$expected_file_found) {
+ skip("could not build $real_target");
}
-skip("could not build $target")
- if $expected =~ /perl$/ ? !-x $expected : !-r $expected;
+match_and_exit($real_target, @ARGV) if $match;
+
+if (defined $options{'one-liner'}) {
+ my $exe = $target =~ /^(?:perl$|test)/ ? 'perl' : 'miniperl';
+ unshift @ARGV, '-e', $options{'one-liner'};
+ foreach (qw(c l w)) {
+ unshift @ARGV, "-$_" if $options{$_};
+ }
+ unshift @ARGV, "./$exe", '-Ilib';
+}
# This is what we came here to run:
+
+if (exists $Config{ldlibpthname}) {
+ require Cwd;
+ my $varname = $Config{ldlibpthname};
+ my $cwd = Cwd::getcwd();
+ if (defined $ENV{$varname}) {
+ $ENV{$varname} = $cwd . $Config{path_sep} . $ENV{$varname};
+ } else {
+ $ENV{$varname} = $cwd;
+ }
+}
+
my $ret = system @ARGV;
report_and_exit($ret, 'zero exit from', 'non-zero exit from', "@ARGV");
+############################################################################
+#
+# Patching, editing and faking routines only below here.
+#
+############################################################################
+
+sub fake_noextensions {
+ edit_file('config.sh', sub {
+ my @lines = split /\n/, shift;
+ my @ext = split /\s+/, $defines{noextensions};
+ foreach (@lines) {
+ next unless /^extensions=/ || /^dynamic_ext/;
+ foreach my $ext (@ext) {
+ s/\b$ext( )?\b/$1/;
+ }
+ }
+ return join "\n", @lines;
+ });
+}
+
+sub force_manifest {
+ my (@missing, @created_dirs);
+ my $fh = open_or_die('MANIFEST');
+ while (<$fh>) {
+ next unless /^(\S+)/;
+ # -d is special case needed (at least) between 27332437a2ed1941 and
+ # bf3d9ec563d25054^ inclusive, as manifest contains ext/Thread/Thread
+ push @missing, $1
+ unless -f $1 || -d $1;
+ }
+ close_or_die($fh);
+
+ foreach my $pathname (@missing) {
+ my @parts = split '/', $pathname;
+ my $leaf = pop @parts;
+ my $path = '.';
+ while (@parts) {
+ $path .= '/' . shift @parts;
+ next if -d $path;
+ mkdir $path, 0700 or die "Can't create $path: $!";
+ unshift @created_dirs, $path;
+ }
+ $fh = open_or_die($pathname, '>');
+ close_or_die($fh);
+ chmod 0, $pathname or die "Can't chmod 0 $pathname: $!";
+ }
+ return \@missing, \@created_dirs;
+}
+
+sub force_manifest_cleanup {
+ my ($missing, $created_dirs) = @_;
+ # This is probably way too paranoid:
+ my @errors;
+ require Fcntl;
+ foreach my $file (@$missing) {
+ my (undef, undef, $mode, undef, undef, undef, undef, $size)
+ = stat $file;
+ if (!defined $mode) {
+ push @errors, "Added file $file has been deleted by Configure";
+ next;
+ }
+ if (Fcntl::S_IMODE($mode) != 0) {
+ push @errors,
+ sprintf 'Added file %s had mode changed by Configure to %03o',
+ $file, $mode;
+ }
+ if ($size != 0) {
+ push @errors,
+ "Added file $file had sized changed by Configure to $size";
+ }
+ unlink $file or die "Can't unlink $file: $!";
+ }
+ foreach my $dir (@$created_dirs) {
+ rmdir $dir or die "Can't rmdir $dir: $!";
+ }
+ skip("@errors")
+ if @errors;
+}
+
+sub patch_Configure {
+ if ($major < 1) {
+ if (extract_from_file('Configure',
+ qr/^\t\t\*=\*\) echo "\$1" >> \$optdef;;$/)) {
+ # This is " Spaces now allowed in -D command line options.",
+ # part of commit ecfc54246c2a6f42
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 3d3b38d..78ffe16 100755
+--- a/Configure
++++ b/Configure
+@@ -652,7 +777,8 @@ while test $# -gt 0; do
+ echo "$me: use '-U symbol=', not '-D symbol='." >&2
+ echo "$me: ignoring -D $1" >&2
+ ;;
+- *=*) echo "$1" >> $optdef;;
++ *=*) echo "$1" | \
++ sed -e "s/'/'\"'\"'/g" -e "s/=\(.*\)/='\1'/" >> $optdef;;
+ *) echo "$1='define'" >> $optdef;;
+ esac
+ shift
+EOPATCH
+ }
+
+ if (extract_from_file('Configure', qr/^if \$contains 'd_namlen' \$xinc\b/)) {
+ # Configure's original simple "grep" for d_namlen falls foul of the
+ # approach taken by the glibc headers:
+ # #ifdef _DIRENT_HAVE_D_NAMLEN
+ # # define _D_EXACT_NAMLEN(d) ((d)->d_namlen)
+ #
+ # where _DIRENT_HAVE_D_NAMLEN is not defined on Linux.
+ # This is also part of commit ecfc54246c2a6f42
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 3d3b38d..78ffe16 100755
+--- a/Configure
++++ b/Configure
+@@ -3935,7 +4045,8 @@ $rm -f try.c
+
+ : see if the directory entry stores field length
+ echo " "
+-if $contains 'd_namlen' $xinc >/dev/null 2>&1; then
++$cppstdin $cppflags $cppminus < "$xinc" > try.c
++if $contains 'd_namlen' try.c >/dev/null 2>&1; then
+ echo "Good, your directory entry keeps length information in d_namlen." >&4
+ val="$define"
+ else
+EOPATCH
+ }
+ }
+
+ if ($major < 2
+ && !extract_from_file('Configure',
+ qr/Try to guess additional flags to pick up local libraries/)) {
+ my $mips = extract_from_file('Configure',
+ qr!(''\) if (?:\./)?mips; then)!);
+ # This is part of perl-5.001n. It's needed, to add -L/usr/local/lib to
+ # theld flags if libraries are found there. It shifts the code to set up
+ # libpth earlier, and then adds the code to add libpth entries to
+ # ldflags
+ # mips was changed to ./mips in ecfc54246c2a6f42, perl5.000 patch.0g
+ apply_patch(sprintf <<'EOPATCH', $mips);
+diff --git a/Configure b/Configure
+index 53649d5..0635a6e 100755
+--- a/Configure
++++ b/Configure
+@@ -2749,6 +2749,52 @@ EOM
+ ;;
+ esac
+
++: Set private lib path
++case "$plibpth" in
++'') if ./mips; then
++ plibpth="$incpath/usr/lib /usr/local/lib /usr/ccs/lib"
++ fi;;
++esac
++case "$libpth" in
++' ') dlist='';;
++'') dlist="$plibpth $glibpth";;
++*) dlist="$libpth";;
++esac
++
++: Now check and see which directories actually exist, avoiding duplicates
++libpth=''
++for xxx in $dlist
++do
++ if $test -d $xxx; then
++ case " $libpth " in
++ *" $xxx "*) ;;
++ *) libpth="$libpth $xxx";;
++ esac
++ fi
++done
++$cat <<'EOM'
++
++Some systems have incompatible or broken versions of libraries. Among
++the directories listed in the question below, please remove any you
++know not to be holding relevant libraries, and add any that are needed.
++Say "none" for none.
++
++EOM
++case "$libpth" in
++'') dflt='none';;
++*)
++ set X $libpth
++ shift
++ dflt=${1+"$@"}
++ ;;
++esac
++rp="Directories to use for library searches?"
++. ./myread
++case "$ans" in
++none) libpth=' ';;
++*) libpth="$ans";;
++esac
++
+ : flags used in final linking phase
+ case "$ldflags" in
+ '') if ./venix; then
+@@ -2765,6 +2811,23 @@ case "$ldflags" in
+ ;;
+ *) dflt="$ldflags";;
+ esac
++
++: Possible local library directories to search.
++loclibpth="/usr/local/lib /opt/local/lib /usr/gnu/lib"
++loclibpth="$loclibpth /opt/gnu/lib /usr/GNU/lib /opt/GNU/lib"
++
++: Try to guess additional flags to pick up local libraries.
++for thislibdir in $libpth; do
++ case " $loclibpth " in
++ *" $thislibdir "*)
++ case "$dflt " in
++ "-L$thislibdir ") ;;
++ *) dflt="$dflt -L$thislibdir" ;;
++ esac
++ ;;
++ esac
++done
++
+ echo " "
+ rp="Any additional ld flags (NOT including libraries)?"
+ . ./myread
+@@ -2828,52 +2891,6 @@ n) echo "OK, that should do.";;
+ esac
+ $rm -f try try.* core
+
+-: Set private lib path
+-case "$plibpth" in
+-%s
+- plibpth="$incpath/usr/lib /usr/local/lib /usr/ccs/lib"
+- fi;;
+-esac
+-case "$libpth" in
+-' ') dlist='';;
+-'') dlist="$plibpth $glibpth";;
+-*) dlist="$libpth";;
+-esac
+-
+-: Now check and see which directories actually exist, avoiding duplicates
+-libpth=''
+-for xxx in $dlist
+-do
+- if $test -d $xxx; then
+- case " $libpth " in
+- *" $xxx "*) ;;
+- *) libpth="$libpth $xxx";;
+- esac
+- fi
+-done
+-$cat <<'EOM'
+-
+-Some systems have incompatible or broken versions of libraries. Among
+-the directories listed in the question below, please remove any you
+-know not to be holding relevant libraries, and add any that are needed.
+-Say "none" for none.
+-
+-EOM
+-case "$libpth" in
+-'') dflt='none';;
+-*)
+- set X $libpth
+- shift
+- dflt=${1+"$@"}
+- ;;
+-esac
+-rp="Directories to use for library searches?"
+-. ./myread
+-case "$ans" in
+-none) libpth=' ';;
+-*) libpth="$ans";;
+-esac
+-
+ : compute shared library extension
+ case "$so" in
+ '')
+EOPATCH
+ }
+
+ if ($major < 5 && extract_from_file('Configure',
+ qr!if \$cc \$ccflags try\.c -o try >/dev/null 2>&1; then!)) {
+ # Analogous to the more general fix of dfe9444ca7881e71
+ # Without this flags such as -m64 may not be passed to this compile,
+ # which results in a byteorder of '1234' instead of '12345678', which
+ # can then cause crashes.
+
+ if (extract_from_file('Configure', qr/xxx_prompt=y/)) {
+ # 8e07c86ebc651fe9 or later
+ # ("This is my patch patch.1n for perl5.001.")
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 62249dd..c5c384e 100755
+--- a/Configure
++++ b/Configure
+@@ -8247,7 +8247,7 @@ main()
+ }
+ EOCP
+ xxx_prompt=y
+- if $cc $ccflags try.c -o try >/dev/null 2>&1 && ./try > /dev/null; then
++ if $cc $ccflags $ldflags try.c -o try >/dev/null 2>&1 && ./try > /dev/null; then
+ dflt=`./try`
+ case "$dflt" in
+ [1-4][1-4][1-4][1-4]|12345678|87654321)
+EOPATCH
+ } else {
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 53649d5..f1cd64a 100755
+--- a/Configure
++++ b/Configure
+@@ -6362,7 +6362,7 @@ main()
+ printf("\n");
+ }
+ EOCP
+- if $cc $ccflags try.c -o try >/dev/null 2>&1 ; then
++ if $cc $ccflags $ldflags try.c -o try >/dev/null 2>&1 ; then
+ dflt=`./try`
+ case "$dflt" in
+ ????|????????) echo "(The test program ran ok.)";;
+EOPATCH
+ }
+ }
+
+ if ($major < 6 && !extract_from_file('Configure',
+ qr!^\t-A\)$!)) {
+ # This adds the -A option to Configure, which is incredibly useful
+ # Effectively this is commits 02e93a22d20fc9a5, 5f83a3e9d818c3ad,
+ # bde6b06b2c493fef, f7c3111703e46e0c and 2 lines of trailing whitespace
+ # removed by 613d6c3e99b9decc, but applied at slightly different
+ # locations to ensure a clean patch back to 5.000
+ # Note, if considering patching to the intermediate revisions to fix
+ # bugs in -A handling, f7c3111703e46e0c is from 2002, and hence
+ # $major == 8
+
+ # To add to the fun, early patches add -K and -O options, and it's not
+ # trivial to get patch to put the C<. ./posthint.sh> in the right place
+ edit_file('Configure', sub {
+ my $code = shift;
+ $code =~ s/(optstr = ")([^"]+";\s*# getopt-style specification)/$1A:$2/
+ or die "Substitution failed";
+ $code =~ s!^(: who configured the system)!
+touch posthint.sh
+. ./posthint.sh
+
+$1!ms
+ or die "Substitution failed";
+ return $code;
+ });
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 4b55fa6..60c3c64 100755
+--- a/Configure
++++ b/Configure
+@@ -1150,6 +1150,7 @@ set X `for arg in "$@"; do echo "X$arg"; done |
+ eval "set $*"
+ shift
+ rm -f options.awk
++rm -f posthint.sh
+
+ : set up default values
+ fastread=''
+@@ -1172,6 +1173,56 @@ while test $# -gt 0; do
+ case "$1" in
+ -d) shift; fastread=yes;;
+ -e) shift; alldone=cont;;
++ -A)
++ shift
++ xxx=''
++ yyy="$1"
++ zzz=''
++ uuu=undef
++ case "$yyy" in
++ *=*) zzz=`echo "$yyy"|sed 's!=.*!!'`
++ case "$zzz" in
++ *:*) zzz='' ;;
++ *) xxx=append
++ zzz=" "`echo "$yyy"|sed 's!^[^=]*=!!'`
++ yyy=`echo "$yyy"|sed 's!=.*!!'` ;;
++ esac
++ ;;
++ esac
++ case "$xxx" in
++ '') case "$yyy" in
++ *:*) xxx=`echo "$yyy"|sed 's!:.*!!'`
++ yyy=`echo "$yyy"|sed 's!^[^:]*:!!'`
++ zzz=`echo "$yyy"|sed 's!^[^=]*=!!'`
++ yyy=`echo "$yyy"|sed 's!=.*!!'` ;;
++ *) xxx=`echo "$yyy"|sed 's!:.*!!'`
++ yyy=`echo "$yyy"|sed 's!^[^:]*:!!'` ;;
++ esac
++ ;;
++ esac
++ case "$xxx" in
++ append)
++ echo "$yyy=\"\${$yyy}$zzz\"" >> posthint.sh ;;
++ clear)
++ echo "$yyy=''" >> posthint.sh ;;
++ define)
++ case "$zzz" in
++ '') zzz=define ;;
++ esac
++ echo "$yyy='$zzz'" >> posthint.sh ;;
++ eval)
++ echo "eval \"$yyy=$zzz\"" >> posthint.sh ;;
++ prepend)
++ echo "$yyy=\"$zzz\${$yyy}\"" >> posthint.sh ;;
++ undef)
++ case "$zzz" in
++ '') zzz="$uuu" ;;
++ esac
++ echo "$yyy=$zzz" >> posthint.sh ;;
++ *) echo "$me: unknown -A command '$xxx', ignoring -A $1" >&2 ;;
++ esac
++ shift
++ ;;
+ -f)
+ shift
+ cd ..
+EOPATCH
+ }
+
+ if ($major < 8 && $^O eq 'aix') {
+ edit_file('Configure', sub {
+ my $code = shift;
+ # Replicate commit a8c676c69574838b
+ # Whitespace allowed at the ends of /lib/syscalls.exp lines
+ # and half of commit c6912327ae30e6de
+ # AIX syscalls.exp scan: the syscall might be marked 32, 3264, or 64
+ $code =~ s{(\bsed\b.*\bsyscall)(?:\[0-9\]\*)?(\$.*/lib/syscalls\.exp)}
+ {$1 . "[0-9]*[ \t]*" . $2}e;
+ return $code;
+ });
+ }
+
+ if ($major < 8 && !extract_from_file('Configure',
+ qr/^\t\tif test ! -t 0; then$/)) {
+ # Before dfe9444ca7881e71, Configure would refuse to run if stdin was
+ # not a tty. With that commit, the tty requirement was dropped for -de
+ # and -dE
+ # Commit aaeb8e512e8e9e14 dropped the tty requirement for -S
+ # For those older versions, it's probably easiest if we simply remove
+ # the sanity test.
+ edit_file('Configure', sub {
+ my $code = shift;
+ $code =~ s/test ! -t 0/test Perl = rules/;
+ return $code;
+ });
+ }
+
+ if ($major == 8 || $major == 9) {
+ # Fix symbol detection to that of commit 373dfab3839ca168 if it's any
+ # intermediate version 5129fff43c4fe08c or later, as the intermediate
+ # versions don't work correctly on (at least) Sparc Linux.
+ # 5129fff43c4fe08c adds the first mention of mistrustnm.
+ # 373dfab3839ca168 removes the last mention of lc=""
+ edit_file('Configure', sub {
+ my $code = shift;
+ return $code
+ if $code !~ /\btc="";/; # 373dfab3839ca168 or later
+ return $code
+ if $code !~ /\bmistrustnm\b/; # before 5129fff43c4fe08c
+ my $fixed = <<'EOC';
+
+: is a C symbol defined?
+csym='tlook=$1;
+case "$3" in
+-v) tf=libc.tmp; tdc="";;
+-a) tf=libc.tmp; tdc="[]";;
+*) tlook="^$1\$"; tf=libc.list; tdc="()";;
+esac;
+tx=yes;
+case "$reuseval-$4" in
+true-) ;;
+true-*) tx=no; eval "tval=\$$4"; case "$tval" in "") tx=yes;; esac;;
+esac;
+case "$tx" in
+yes)
+ tval=false;
+ if $test "$runnm" = true; then
+ if $contains $tlook $tf >/dev/null 2>&1; then
+ tval=true;
+ elif $test "$mistrustnm" = compile -o "$mistrustnm" = run; then
+ echo "void *(*(p()))$tdc { extern void *$1$tdc; return &$1; } int main() { if(p()) return(0); else return(1); }"> try.c;
+ $cc -o try $optimize $ccflags $ldflags try.c >/dev/null 2>&1 $libs && tval=true;
+ $test "$mistrustnm" = run -a -x try && { $run ./try$_exe >/dev/null 2>&1 || tval=false; };
+ $rm -f try$_exe try.c core core.* try.core;
+ fi;
+ else
+ echo "void *(*(p()))$tdc { extern void *$1$tdc; return &$1; } int main() { if(p()) return(0); else return(1); }"> try.c;
+ $cc -o try $optimize $ccflags $ldflags try.c $libs >/dev/null 2>&1 && tval=true;
+ $rm -f try$_exe try.c;
+ fi;
+ ;;
+*)
+ case "$tval" in
+ $define) tval=true;;
+ *) tval=false;;
+ esac;
+ ;;
+esac;
+eval "$2=$tval"'
+
+EOC
+ $code =~ s/\n: is a C symbol defined\?\n.*?\neval "\$2=\$tval"'\n\n/$fixed/sm
+ or die "substitution failed";
+ return $code;
+ });
+ }
+
+ if ($major < 10
+ && extract_from_file('Configure', qr/^set malloc\.h i_malloc$/)) {
+ # This is commit 01d07975f7ef0e7d, trimmed, with $compile inlined as
+ # prior to bd9b35c97ad661cc Configure had the malloc.h test before the
+ # definition of $compile.
+ apply_patch(<<'EOPATCH');
+diff --git a/Configure b/Configure
+index 3d2e8b9..6ce7766 100755
+--- a/Configure
++++ b/Configure
+@@ -6743,5 +6743,22 @@ set d_dosuid
+
+ : see if this is a malloc.h system
+-set malloc.h i_malloc
+-eval $inhdr
++: we want a real compile instead of Inhdr because some systems have a
++: malloc.h that just gives a compile error saying to use stdlib.h instead
++echo " "
++$cat >try.c <<EOCP
++#include <stdlib.h>
++#include <malloc.h>
++int main () { return 0; }
++EOCP
++set try
++if $cc $optimize $ccflags $ldflags -o try $* try.c $libs > /dev/null 2>&1; then
++ echo "<malloc.h> found." >&4
++ val="$define"
++else
++ echo "<malloc.h> NOT found." >&4
++ val="$undef"
++fi
++$rm -f try.c try
++set i_malloc
++eval $setvar
+
+EOPATCH
+ }
+}
+
+sub patch_hints {
+ if ($^O eq 'freebsd') {
+ # There are rather too many version-specific FreeBSD hints fixes to
+ # patch individually. Also, more than once the FreeBSD hints file has
+ # been written in what turned out to be a rather non-future-proof style,
+ # with case statements treating the most recent version as the
+ # exception, instead of treating previous versions' behaviour explicitly
+ # and changing the default to cater for the current behaviour. (As
+ # strangely, future versions inherit the current behaviour.)
+ checkout_file('hints/freebsd.sh');
+ } elsif ($^O eq 'darwin') {
+ if ($major < 8) {
+ # We can't build on darwin without some of the data in the hints
+ # file. Probably less surprising to use the earliest version of
+ # hints/darwin.sh and then edit in place just below, than use
+ # blead's version, as that would create a discontinuity at
+ # f556e5b971932902 - before it, hints bugs would be "fixed", after
+ # it they'd resurface. This way, we should give the illusion of
+ # monotonic bug fixing.
+ my $faking_it;
+ if (!-f 'hints/darwin.sh') {
+ checkout_file('hints/darwin.sh', 'f556e5b971932902');
+ ++$faking_it;
+ }
+
+ edit_file('hints/darwin.sh', sub {
+ my $code = shift;
+ # Part of commit 8f4f83badb7d1ba9, which mostly undoes
+ # commit 0511a818910f476c.
+ $code =~ s/^cppflags='-traditional-cpp';$/cppflags="\${cppflags} -no-cpp-precomp"/m;
+ # commit 14c11978e9b52e08/803bb6cc74d36a3f
+ # Without this, code in libperl.bundle links against op.o
+ # in preference to opmini.o on the linker command line,
+ # and hence miniperl tries to use File::Glob instead of
+ # csh
+ $code =~ s/^(lddlflags=)/ldflags="\${ldflags} -flat_namespace"\n$1/m;
+ # f556e5b971932902 also patches Makefile.SH with some
+ # special case code to deal with useshrplib for darwin.
+ # Given that post 5.8.0 the darwin hints default was
+ # changed to false, and it would be very complex to splice
+ # in that code in various versions of Makefile.SH back
+ # to 5.002, lets just turn it off.
+ $code =~ s/^useshrplib='true'/useshrplib='false'/m
+ if $faking_it;
+
+ # Part of commit d235852b65d51c44
+ # Don't do this on a case sensitive HFS+ partition, as it
+ # breaks the build for 5.003 and earlier.
+ if ($case_insensitive
+ && $code !~ /^firstmakefile=GNUmakefile/) {
+ $code .= "\nfirstmakefile=GNUmakefile;\n";
+ }
+
+ return $code;
+ });
+ }
+ } elsif ($^O eq 'netbsd') {
+ if ($major < 6) {
+ # These are part of commit 099685bc64c7dbce
+ edit_file('hints/netbsd.sh', sub {
+ my $code = shift;
+ my $fixed = <<'EOC';
+case "$osvers" in
+0.9|0.8*)
+ usedl="$undef"
+ ;;
+*)
+ if [ -f /usr/libexec/ld.elf_so ]; then
+ d_dlopen=$define
+ d_dlerror=$define
+ ccdlflags="-Wl,-E -Wl,-R${PREFIX}/lib $ccdlflags"
+ cccdlflags="-DPIC -fPIC $cccdlflags"
+ lddlflags="--whole-archive -shared $lddlflags"
+ elif [ "`uname -m`" = "pmax" ]; then
+# NetBSD 1.3 and 1.3.1 on pmax shipped an 'old' ld.so, which will not work.
+ d_dlopen=$undef
+ elif [ -f /usr/libexec/ld.so ]; then
+ d_dlopen=$define
+ d_dlerror=$define
+ ccdlflags="-Wl,-R${PREFIX}/lib $ccdlflags"
+# we use -fPIC here because -fpic is *NOT* enough for some of the
+# extensions like Tk on some netbsd platforms (the sparc is one)
+ cccdlflags="-DPIC -fPIC $cccdlflags"
+ lddlflags="-Bforcearchive -Bshareable $lddlflags"
+ else
+ d_dlopen=$undef
+ fi
+ ;;
+esac
+EOC
+ $code =~ s/^case "\$osvers" in\n0\.9\|0\.8.*?^esac\n/$fixed/ms;
+ return $code;
+ });
+ }
+ } elsif ($^O eq 'openbsd') {
+ if ($major < 8) {
+ checkout_file('hints/openbsd.sh', '43051805d53a3e4c')
+ unless -f 'hints/openbsd.sh';
+ my $which = extract_from_file('hints/openbsd.sh',
+ qr/# from (2\.8|3\.1) onwards/,
+ '');
+ if ($which eq '') {
+ my $was = extract_from_file('hints/openbsd.sh',
+ qr/(lddlflags="(?:-Bforcearchive )?-Bshareable)/);
+ # This is commit 154d43cbcf57271c and parts of 5c75dbfa77b0949c
+ # and 29b5585702e5e025
+ apply_patch(sprintf <<'EOPATCH', $was);
+diff --git a/hints/openbsd.sh b/hints/openbsd.sh
+index a7d8bf2..5b79709 100644
+--- a/hints/openbsd.sh
++++ b/hints/openbsd.sh
+@@ -37,7 +37,25 @@ OpenBSD.alpha|OpenBSD.mips|OpenBSD.powerpc|OpenBSD.vax)
+ # we use -fPIC here because -fpic is *NOT* enough for some of the
+ # extensions like Tk on some OpenBSD platforms (ie: sparc)
+ cccdlflags="-DPIC -fPIC $cccdlflags"
+- %s $lddlflags"
++ case "$osvers" in
++ [01].*|2.[0-7]|2.[0-7].*)
++ lddlflags="-Bshareable $lddlflags"
++ ;;
++ 2.[8-9]|3.0)
++ ld=${cc:-cc}
++ lddlflags="-shared -fPIC $lddlflags"
++ ;;
++ *) # from 3.1 onwards
++ ld=${cc:-cc}
++ lddlflags="-shared -fPIC $lddlflags"
++ libswanted=`echo $libswanted | sed 's/ dl / /'`
++ ;;
++ esac
++
++ # We need to force ld to export symbols on ELF platforms.
++ # Without this, dlopen() is crippled.
++ ELF=`${cc:-cc} -dM -E - </dev/null | grep __ELF__`
++ test -n "$ELF" && ldflags="-Wl,-E $ldflags"
+ ;;
+ esac
+
+EOPATCH
+ } elsif ($which eq '2.8') {
+ # This is parts of 5c75dbfa77b0949c and 29b5585702e5e025, and
+ # possibly eb9cd59d45ad2908
+ my $was = extract_from_file('hints/openbsd.sh',
+ qr/lddlflags="(-shared(?: -fPIC)?) \$lddlflags"/);
+
+ apply_patch(sprintf <<'EOPATCH', $was);
+--- a/hints/openbsd.sh 2011-10-21 17:25:20.000000000 +0200
++++ b/hints/openbsd.sh 2011-10-21 16:58:43.000000000 +0200
+@@ -44,11 +44,21 @@
+ [01].*|2.[0-7]|2.[0-7].*)
+ lddlflags="-Bshareable $lddlflags"
+ ;;
+- *) # from 2.8 onwards
++ 2.[8-9]|3.0)
+ ld=${cc:-cc}
+- lddlflags="%s $lddlflags"
++ lddlflags="-shared -fPIC $lddlflags"
++ ;;
++ *) # from 3.1 onwards
++ ld=${cc:-cc}
++ lddlflags="-shared -fPIC $lddlflags"
++ libswanted=`echo $libswanted | sed 's/ dl / /'`
+ ;;
+ esac
++
++ # We need to force ld to export symbols on ELF platforms.
++ # Without this, dlopen() is crippled.
++ ELF=`${cc:-cc} -dM -E - </dev/null | grep __ELF__`
++ test -n "$ELF" && ldflags="-Wl,-E $ldflags"
+ ;;
+ esac
+
+EOPATCH
+ } elsif ($which eq '3.1'
+ && !extract_from_file('hints/openbsd.sh',
+ qr/We need to force ld to export symbols on ELF platforms/)) {
+ # This is part of 29b5585702e5e025
+ apply_patch(<<'EOPATCH');
+diff --git a/hints/openbsd.sh b/hints/openbsd.sh
+index c6b6bc9..4839d04 100644
+--- a/hints/openbsd.sh
++++ b/hints/openbsd.sh
+@@ -54,6 +54,11 @@ alpha-2.[0-8]|mips-*|vax-*|powerpc-2.[0-7]|m88k-*)
+ libswanted=`echo $libswanted | sed 's/ dl / /'`
+ ;;
+ esac
++
++ # We need to force ld to export symbols on ELF platforms.
++ # Without this, dlopen() is crippled.
++ ELF=`${cc:-cc} -dM -E - </dev/null | grep __ELF__`
++ test -n "$ELF" && ldflags="-Wl,-E $ldflags"
+ ;;
+ esac
+
+EOPATCH
+ }
+ }
+ } elsif ($^O eq 'linux') {
+ if ($major < 1) {
+ # sparc linux seems to need the -Dbool=char -DHAS_BOOL part of
+ # perl5.000 patch.0n: [address Configure and build issues]
+ edit_file('hints/linux.sh', sub {
+ my $code = shift;
+ $code =~ s!-I/usr/include/bsd!-Dbool=char -DHAS_BOOL!g;
+ return $code;
+ });
+ }
+
+ if ($major <= 9) {
+ if (`uname -sm` =~ qr/^Linux sparc/) {
+ if (extract_from_file('hints/linux.sh', qr/sparc-linux/)) {
+ # Be sure to use -fPIC not -fpic on Linux/SPARC
+ apply_commit('f6527d0ef0c13ad4');
+ } elsif(!extract_from_file('hints/linux.sh',
+ qr/^sparc-linux\)$/)) {
+ my $fh = open_or_die('hints/linux.sh', '>>');
+ print $fh <<'EOT' or die $!;
+
+case "`uname -m`" in
+sparc*)
+ case "$cccdlflags" in
+ *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;;
+ *) cccdlflags="$cccdlflags -fPIC" ;;
+ esac
+ ;;
+esac
+EOT
+ close_or_die($fh);
+ }
+ }
+ }
+ }
+}
+
+sub patch_SH {
+ # Cwd.xs added in commit 0d2079faa739aaa9. Cwd.pm moved to ext/ 8 years
+ # later in commit 403f501d5b37ebf0
+ if ($major > 0 && <*/Cwd/Cwd.xs>) {
+ if ($major < 10
+ && !extract_from_file('Makefile.SH', qr/^extra_dep=''$/)) {
+ # The Makefile.PL for Unicode::Normalize needs
+ # lib/unicore/CombiningClass.pl. Even without a parallel build, we
+ # need a dependency to ensure that it builds. This is a variant of
+ # commit 9f3ef600c170f61e. Putting this for earlier versions gives
+ # us a spot on which to hang the edits below
+ apply_patch(<<'EOPATCH');
+diff --git a/Makefile.SH b/Makefile.SH
+index f61d0db..6097954 100644
+--- a/Makefile.SH
++++ b/Makefile.SH
+@@ -155,10 +155,20 @@ esac
+
+ : Prepare dependency lists for Makefile.
+ dynamic_list=' '
++extra_dep=''
+ for f in $dynamic_ext; do
+ : the dependency named here will never exist
+ base=`echo "$f" | sed 's/.*\///'`
+- dynamic_list="$dynamic_list lib/auto/$f/$base.$dlext"
++ this_target="lib/auto/$f/$base.$dlext"
++ dynamic_list="$dynamic_list $this_target"
++
++ : Parallel makes reveal that we have some interdependencies
++ case $f in
++ Math/BigInt/FastCalc) extra_dep="$extra_dep
++$this_target: lib/auto/List/Util/Util.$dlext" ;;
++ Unicode/Normalize) extra_dep="$extra_dep
++$this_target: lib/unicore/CombiningClass.pl" ;;
++ esac
+ done
+
+ static_list=' '
+@@ -987,2 +997,9 @@ n_dummy $(nonxs_ext): miniperl$(EXE_EXT) preplibrary $(DYNALOADER) FORCE
+ @$(LDLIBPTH) sh ext/util/make_ext nonxs $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
++!NO!SUBS!
++
++$spitshell >>Makefile <<EOF
++$extra_dep
++EOF
++
++$spitshell >>Makefile <<'!NO!SUBS!'
+
+EOPATCH
+ }
+
+ if ($major == 11) {
+ if (extract_from_file('patchlevel.h',
+ qr/^#include "unpushed\.h"/)) {
+ # I had thought it easier to detect when building one of the 52
+ # commits with the original method of incorporating the git
+ # revision and drop parallel make flags. Commits shown by
+ # git log 46807d8e809cc127^..dcff826f70bf3f64^ ^d4fb0a1f15d1a1c4
+ # However, it's not actually possible to make miniperl for that
+ # configuration as-is, because the file .patchnum is only made
+ # as a side effect of target 'all'
+ # I also don't think that it's "safe" to simply run
+ # make_patchnum.sh before the build. We need the proper
+ # dependency rules in the Makefile to *stop* it being run again
+ # at the wrong time.
+ # This range is important because contains the commit that
+ # merges Schwern's y2038 work.
+ apply_patch(<<'EOPATCH');
+diff --git a/Makefile.SH b/Makefile.SH
+index 9ad8b6f..106e721 100644
+--- a/Makefile.SH
++++ b/Makefile.SH
+@@ -540,9 +544,14 @@ sperl.i: perl.c $(h)
+
+ .PHONY: all translators utilities make_patchnum
+
+-make_patchnum:
++make_patchnum: lib/Config_git.pl
++
++lib/Config_git.pl: make_patchnum.sh
+ sh $(shellflags) make_patchnum.sh
+
++# .patchnum, unpushed.h and lib/Config_git.pl are built by make_patchnum.sh
++unpushed.h .patchnum: lib/Config_git.pl
++
+ # make sure that we recompile perl.c if .patchnum changes
+ perl$(OBJ_EXT): .patchnum unpushed.h
+
+EOPATCH
+ } elsif (-f '.gitignore'
+ && extract_from_file('.gitignore', qr/^\.patchnum$/)) {
+ # 8565263ab8a47cda to 46807d8e809cc127^ inclusive.
+ edit_file('Makefile.SH', sub {
+ my $code = shift;
+ $code =~ s/^make_patchnum:\n/make_patchnum: .patchnum
+
+.sha1: .patchnum
+
+.patchnum: make_patchnum.sh
+/m;
+ return $code;
+ });
+ } elsif (-f 'lib/.gitignore'
+ && extract_from_file('lib/.gitignore',
+ qr!^/Config_git.pl!)
+ && !extract_from_file('Makefile.SH',
+ qr/^uudmap\.h.*:bitcount.h$/)) {
+ # Between commits and dcff826f70bf3f64 and 0f13ebd5d71f8177^
+ edit_file('Makefile.SH', sub {
+ my $code = shift;
+ # Bug introduced by 344af494c35a9f0f
+ # fixed in 0f13ebd5d71f8177
+ $code =~ s{^(pod/perlapi\.pod) (pod/perlintern\.pod): }
+ {$1: $2\n\n$2: }m;
+ # Bug introduced by efa50c51e3301a2c
+ # fixed in 0f13ebd5d71f8177
+ $code =~ s{^(uudmap\.h) (bitcount\.h): }
+ {$1: $2\n\n$2: }m;
+
+ # The rats nest of getting git_version.h correct
+
+ if ($code =~ s{git_version\.h: stock_git_version\.h
+\tcp stock_git_version\.h git_version\.h}
+ {}m) {
+ # before 486cd780047ff224
+
+ # We probably can't build between
+ # 953f6acfa20ec275^ and 8565263ab8a47cda
+ # inclusive, but all commits in that range
+ # relate to getting make_patchnum.sh working,
+ # so it is extremely unlikely to be an
+ # interesting bisect target. They will skip.
+
+ # No, don't spawn a submake if
+ # make_patchnum.sh or make_patchnum.pl fails
+ $code =~ s{\|\| \$\(MAKE\) miniperl.*}
+ {}m;
+ $code =~ s{^\t(sh.*make_patchnum\.sh.*)}
+ {\t-$1}m;
+
+ # Use an external perl to run make_patchnum.pl
+ # because miniperl still depends on
+ # git_version.h
+ $code =~ s{^\t.*make_patchnum\.pl}
+ {\t-$^X make_patchnum.pl}m;
+
+
+ # "Truth in advertising" - running
+ # make_patchnum generates 2 files.
+ $code =~ s{^make_patchnum:.*}{
+make_patchnum: lib/Config_git.pl
+
+git_version.h: lib/Config_git.pl
+
+perlmini\$(OBJ_EXT): git_version.h
+
+lib/Config_git.pl:}m;
+ }
+ # Right, now we've corrected Makefile.SH to
+ # correctly describe how lib/Config_git.pl and
+ # git_version.h are made, we need to fix the rest
+
+ # This emulates commit 2b63e250843b907e
+ # This might duplicate the rule stating that
+ # git_version.h depends on lib/Config_git.pl
+ # This is harmless.
+ $code =~ s{^(?:lib/Config_git\.pl )?git_version\.h: (.* make_patchnum\.pl.*)}
+ {git_version.h: lib/Config_git.pl
+
+lib/Config_git.pl: $1}m;
+
+ # This emulates commits 0f13ebd5d71f8177 and
+ # and a04d4598adc57886. It ensures that
+ # lib/Config_git.pl is built before configpm,
+ # and that configpm is run exactly once.
+ $code =~ s{^(\$\(.*?\) )?(\$\(CONFIGPOD\))(: .*? configpm Porting/Glossary)( lib/Config_git\.pl)?}{
+ # If present, other files depend on $(CONFIGPOD)
+ ($1 ? "$1: $2\n\n" : '')
+ # Then the rule we found
+ . $2 . $3
+ # Add dependency if not there
+ . ($4 ? $4 : ' lib/Config_git.pl')
+ }me;
+
+ return $code;
+ });
+ }
+ }
+
+ if ($major < 14) {
+ # Commits dc0655f797469c47 and d11a62fe01f2ecb2
+ edit_file('Makefile.SH', sub {
+ my $code = shift;
+ foreach my $ext (qw(Encode SDBM_File)) {
+ next if $code =~ /\b$ext\) extra_dep=/s;
+ $code =~ s!(\) extra_dep="\$extra_dep
+\$this_target: .*?" ;;)
+( esac
+)!$1
+ $ext) extra_dep="\$extra_dep
+\$this_target: lib/auto/Cwd/Cwd.\$dlext" ;;
+$2!;
+ }
+ return $code;
+ });
+ }
+ }
+
+ if ($major == 7) {
+ # Remove commits 9fec149bb652b6e9 and 5bab1179608f81d8, which add/amend
+ # rules to automatically run regen scripts that rebuild C headers. These
+ # cause problems because a git checkout doesn't preserve relative file
+ # modification times, hence the regen scripts may fire. This will
+ # obscure whether the repository had the correct generated headers
+ # checked in.
+ # Also, the dependency rules for running the scripts were not correct,
+ # which could cause spurious re-builds on re-running make, and can cause
+ # complete build failures for a parallel make.
+ if (extract_from_file('Makefile.SH',
+ qr/Writing it this way gives make a big hint to always run opcode\.pl before/)) {
+ apply_commit('70c6e6715e8fec53');
+ } elsif (extract_from_file('Makefile.SH',
+ qr/^opcode\.h opnames\.h pp_proto\.h pp\.sym: opcode\.pl$/)) {
+ revert_commit('9fec149bb652b6e9');
+ }
+ }
+
+ if ($^O eq 'aix' && $major >= 11 && $major <= 15
+ && extract_from_file('makedef.pl', qr/^use Config/)) {
+ edit_file('Makefile.SH', sub {
+ # The AIX part of commit e6807d8ab22b761c
+ # It's safe to substitute lib/Config.pm for config.sh
+ # as lib/Config.pm depends on config.sh
+ # If the tree is post e6807d8ab22b761c, the substitution
+ # won't match, which is harmless.
+ my $code = shift;
+ $code =~ s{^(perl\.exp:.* )config\.sh(\b.*)}
+ {$1 . '$(CONFIGPM)' . $2}me;
+ return $code;
+ });
+ }
+
+ # There was a bug in makedepend.SH which was fixed in version 96a8704c.
+ # Symptom was './makedepend: 1: Syntax error: Unterminated quoted string'
+ # Remove this if you're actually bisecting a problem related to
+ # makedepend.SH
+ # If you do this, you may need to add in code to correct the output of older
+ # makedepends, which don't correctly filter newer gcc output such as
+ # <built-in>
+ checkout_file('makedepend.SH');
+
+ if ($major < 4 && -f 'config.sh'
+ && !extract_from_file('config.sh', qr/^trnl=/)) {
+ # This seems to be necessary to avoid makedepend becoming confused,
+ # and hanging on stdin. Seems that the code after
+ # make shlist || ...here... is never run.
+ edit_file('makedepend.SH', sub {
+ my $code = shift;
+ $code =~ s/^trnl='\$trnl'$/trnl='\\n'/m;
+ return $code;
+ });
+ }
+}
+
+sub patch_C {
+ # This is ordered by $major, as it's likely that different platforms may
+ # well want to share code.
+
+ if ($major == 2 && extract_from_file('perl.c', qr/^\tfclose\(e_fp\);$/)) {
+ # need to patch perl.c to avoid calling fclose() twice on e_fp when
+ # using -e
+ # This diff is part of commit ab821d7fdc14a438. The second close was
+ # introduced with perl-5.002, commit a5f75d667838e8e7
+ # Might want a6c477ed8d4864e6 too, for the corresponding change to
+ # pp_ctl.c (likely without this, eval will have "fun")
+ apply_patch(<<'EOPATCH');
+diff --git a/perl.c b/perl.c
+index 03c4d48..3c814a2 100644
+--- a/perl.c
++++ b/perl.c
+@@ -252,6 +252,7 @@ setuid perl scripts securely.\n");
+ #ifndef VMS /* VMS doesn't have environ array */
+ origenviron = environ;
+ #endif
++ e_tmpname = Nullch;
+
+ if (do_undump) {
+
+@@ -405,6 +406,7 @@ setuid perl scripts securely.\n");
+ if (e_fp) {
+ if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp))
+ croak("Can't write to temp file for -e: %s", Strerror(errno));
++ e_fp = Nullfp;
+ argc++,argv--;
+ scriptname = e_tmpname;
+ }
+@@ -470,10 +472,10 @@ setuid perl scripts securely.\n");
+ curcop->cop_line = 0;
+ curstash = defstash;
+ preprocess = FALSE;
+- if (e_fp) {
+- fclose(e_fp);
+- e_fp = Nullfp;
++ if (e_tmpname) {
+ (void)UNLINK(e_tmpname);
++ Safefree(e_tmpname);
++ e_tmpname = Nullch;
+ }
+
+ /* now that script is parsed, we can modify record separator */
+@@ -1369,7 +1371,7 @@ SV *sv;
+ scriptname = xfound;
+ }
+
+- origfilename = savepv(e_fp ? "-e" : scriptname);
++ origfilename = savepv(e_tmpname ? "-e" : scriptname);
+ curcop->cop_filegv = gv_fetchfile(origfilename);
+ if (strEQ(origfilename,"-"))
+ scriptname = "";
+
+EOPATCH
+ }
+
+ if ($major < 3 && $^O eq 'openbsd'
+ && !extract_from_file('pp_sys.c', qr/BSD_GETPGRP/)) {
+ # Part of commit c3293030fd1b7489
+ apply_patch(<<'EOPATCH');
+diff --git a/pp_sys.c b/pp_sys.c
+index 4608a2a..f0c9d1d 100644
+--- a/pp_sys.c
++++ b/pp_sys.c
+@@ -2903,8 +2903,8 @@ PP(pp_getpgrp)
+ pid = 0;
+ else
+ pid = SvIVx(POPs);
+-#ifdef USE_BSDPGRP
+- value = (I32)getpgrp(pid);
++#ifdef BSD_GETPGRP
++ value = (I32)BSD_GETPGRP(pid);
+ #else
+ if (pid != 0)
+ DIE("POSIX getpgrp can't take an argument");
+@@ -2933,8 +2933,8 @@ PP(pp_setpgrp)
+ }
+
+ TAINT_PROPER("setpgrp");
+-#ifdef USE_BSDPGRP
+- SETi( setpgrp(pid, pgrp) >= 0 );
++#ifdef BSD_SETPGRP
++ SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
+ #else
+ if ((pgrp != 0) || (pid != 0)) {
+ DIE("POSIX setpgrp can't take an argument");
+EOPATCH
+ }
+
+ if ($major < 4 && $^O eq 'openbsd') {
+ my $bad;
+ # Need changes from commit a6e633defa583ad5.
+ # Commits c07a80fdfe3926b5 and f82b3d4130164d5f changed the same part
+ # of perl.h
+
+ if (extract_from_file('perl.h',
+ qr/^#ifdef HAS_GETPGRP2$/)) {
+ $bad = <<'EOBAD';
+***************
+*** 57,71 ****
+ #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
+ #define TAINT_ENV() if (tainting) taint_env()
+
+! #ifdef HAS_GETPGRP2
+! # ifndef HAS_GETPGRP
+! # define HAS_GETPGRP
+! # endif
+! #endif
+!
+! #ifdef HAS_SETPGRP2
+! # ifndef HAS_SETPGRP
+! # define HAS_SETPGRP
+! # endif
+ #endif
+
+EOBAD
+ } elsif (extract_from_file('perl.h',
+ qr/Gack, you have one but not both of getpgrp2/)) {
+ $bad = <<'EOBAD';
+***************
+*** 56,76 ****
+ #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
+ #define TAINT_ENV() if (tainting) taint_env()
+
+! #if defined(HAS_GETPGRP2) && defined(HAS_SETPGRP2)
+! # define getpgrp getpgrp2
+! # define setpgrp setpgrp2
+! # ifndef HAS_GETPGRP
+! # define HAS_GETPGRP
+! # endif
+! # ifndef HAS_SETPGRP
+! # define HAS_SETPGRP
+! # endif
+! # ifndef USE_BSDPGRP
+! # define USE_BSDPGRP
+! # endif
+! #else
+! # if defined(HAS_GETPGRP2) || defined(HAS_SETPGRP2)
+! #include "Gack, you have one but not both of getpgrp2() and setpgrp2()."
+! # endif
+ #endif
+
+EOBAD
+ } elsif (extract_from_file('perl.h',
+ qr/^#ifdef USE_BSDPGRP$/)) {
+ $bad = <<'EOBAD'
+***************
+*** 91,116 ****
+ #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
+ #define TAINT_ENV() if (tainting) taint_env()
+
+! #ifdef USE_BSDPGRP
+! # ifdef HAS_GETPGRP
+! # define BSD_GETPGRP(pid) getpgrp((pid))
+! # endif
+! # ifdef HAS_SETPGRP
+! # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
+! # endif
+! #else
+! # ifdef HAS_GETPGRP2
+! # define BSD_GETPGRP(pid) getpgrp2((pid))
+! # ifndef HAS_GETPGRP
+! # define HAS_GETPGRP
+! # endif
+! # endif
+! # ifdef HAS_SETPGRP2
+! # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
+! # ifndef HAS_SETPGRP
+! # define HAS_SETPGRP
+! # endif
+! # endif
+ #endif
+
+ #ifndef _TYPES_ /* If types.h defines this it's easy. */
+EOBAD
+ }
+ if ($bad) {
+ apply_patch(<<"EOPATCH");
+*** a/perl.h 2011-10-21 09:46:12.000000000 +0200
+--- b/perl.h 2011-10-21 09:46:12.000000000 +0200
+$bad--- 91,144 ----
+ #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
+ #define TAINT_ENV() if (tainting) taint_env()
+
+! /* XXX All process group stuff is handled in pp_sys.c. Should these
+! defines move there? If so, I could simplify this a lot. --AD 9/96.
+! */
+! /* Process group stuff changed from traditional BSD to POSIX.
+! perlfunc.pod documents the traditional BSD-style syntax, so we'll
+! try to preserve that, if possible.
+! */
+! #ifdef HAS_SETPGID
+! # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
+! #else
+! # if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
+! # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
+! # else
+! # ifdef HAS_SETPGRP2 /* DG/UX */
+! # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
+! # endif
+! # endif
+! #endif
+! #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
+! # define HAS_SETPGRP /* Well, effectively it does . . . */
+! #endif
+!
+! /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
+! our life easier :-) so we'll try it.
+! */
+! #ifdef HAS_GETPGID
+! # define BSD_GETPGRP(pid) getpgid((pid))
+! #else
+! # if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
+! # define BSD_GETPGRP(pid) getpgrp((pid))
+! # else
+! # ifdef HAS_GETPGRP2 /* DG/UX */
+! # define BSD_GETPGRP(pid) getpgrp2((pid))
+! # endif
+! # endif
+! #endif
+! #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
+! # define HAS_GETPGRP /* Well, effectively it does . . . */
+! #endif
+!
+! /* These are not exact synonyms, since setpgrp() and getpgrp() may
+! have different behaviors, but perl.h used to define USE_BSDPGRP
+! (prior to 5.003_05) so some extension might depend on it.
+! */
+! #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
+! # ifndef USE_BSDPGRP
+! # define USE_BSDPGRP
+! # endif
+ #endif
+
+ #ifndef _TYPES_ /* If types.h defines this it's easy. */
+EOPATCH
+ }
+ }
+
+ if ($major == 4 && extract_from_file('scope.c', qr/\(SV\*\)SSPOPINT/)) {
+ # [PATCH] 5.004_04 +MAINT_TRIAL_1 broken when sizeof(int) != sizeof(void)
+ # Fixes a bug introduced in 161b7d1635bc830b
+ apply_commit('9002cb76ec83ef7f');
+ }
+
+ if ($major == 4 && extract_from_file('av.c', qr/AvARRAY\(av\) = 0;/)) {
+ # Fixes a bug introduced in 1393e20655efb4bc
+ apply_commit('e1c148c28bf3335b', 'av.c');
+ }
+
+ if ($major == 4) {
+ my $rest = extract_from_file('perl.c', qr/delimcpy(.*)/);
+ if (defined $rest and $rest !~ /,$/) {
+ # delimcpy added in fc36a67e8855d031, perl.c refactored to use it.
+ # bug introduced in 2a92aaa05aa1acbf, fixed in 8490252049bf42d3
+ # code then moved to util.c in commit 491527d0220de34e
+ apply_patch(<<'EOPATCH');
+diff --git a/perl.c b/perl.c
+index 4eb69e3..54bbb00 100644
+--- a/perl.c
++++ b/perl.c
+@@ -1735,7 +1735,7 @@ SV *sv;
+ if (len < sizeof tokenbuf)
+ tokenbuf[len] = '\0';
+ #else /* ! (atarist || DOSISH) */
+- s = delimcpy(tokenbuf, tokenbuf + sizeof tokenbuf, s, bufend
++ s = delimcpy(tokenbuf, tokenbuf + sizeof tokenbuf, s, bufend,
+ ':',
+ &len);
+ #endif /* ! (atarist || DOSISH) */
+EOPATCH
+ }
+ }
+
+ if ($major == 4 && $^O eq 'linux') {
+ # Whilst this is fixed properly in f0784f6a4c3e45e1 which provides the
+ # Configure probe, it's easier to back out the problematic changes made
+ # in these previous commits:
+ if (extract_from_file('doio.c',
+ qr!^/\* XXX REALLY need metaconfig test \*/$!)) {
+ revert_commit('4682965a1447ea44', 'doio.c');
+ }
+ if (my $token = extract_from_file('doio.c',
+ qr!^#if (defined\(__sun(?:__)?\)) && defined\(__svr4__\) /\* XXX Need metaconfig test \*/$!)) {
+ my $patch = `git show -R 9b599b2a63d2324d doio.c`;
+ $patch =~ s/defined\(__sun__\)/$token/g;
+ apply_patch($patch);
+ }
+ if (extract_from_file('doio.c',
+ qr!^/\* linux \(and Solaris2\?\) uses :$!)) {
+ revert_commit('8490252049bf42d3', 'doio.c');
+ }
+ if (extract_from_file('doio.c',
+ qr/^ unsemds.buf = &semds;$/)) {
+ revert_commit('8e591e46b4c6543e');
+ }
+ if (extract_from_file('doio.c',
+ qr!^#ifdef __linux__ /\* XXX Need metaconfig test \*/$!)) {
+ # Reverts part of commit 3e3baf6d63945cb6
+ apply_patch(<<'EOPATCH');
+diff --git b/doio.c a/doio.c
+index 62b7de9..0d57425 100644
+--- b/doio.c
++++ a/doio.c
+@@ -1333,9 +1331,6 @@ SV **sp;
+ char *a;
+ I32 id, n, cmd, infosize, getinfo;
+ I32 ret = -1;
+-#ifdef __linux__ /* XXX Need metaconfig test */
+- union semun unsemds;
+-#endif
+
+ id = SvIVx(*++mark);
+ n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
+@@ -1364,29 +1359,11 @@ SV **sp;
+ infosize = sizeof(struct semid_ds);
+ else if (cmd == GETALL || cmd == SETALL)
+ {
+-#ifdef __linux__ /* XXX Need metaconfig test */
+-/* linux uses :
+- int semctl (int semid, int semnun, int cmd, union semun arg)
+-
+- union semun {
+- int val;
+- struct semid_ds *buf;
+- ushort *array;
+- };
+-*/
+- union semun semds;
+- if (semctl(id, 0, IPC_STAT, semds) == -1)
+-#else
+ struct semid_ds semds;
+ if (semctl(id, 0, IPC_STAT, &semds) == -1)
+-#endif
+ return -1;
+ getinfo = (cmd == GETALL);
+-#ifdef __linux__ /* XXX Need metaconfig test */
+- infosize = semds.buf->sem_nsems * sizeof(short);
+-#else
+ infosize = semds.sem_nsems * sizeof(short);
+-#endif
+ /* "short" is technically wrong but much more portable
+ than guessing about u_?short(_t)? */
+ }
+@@ -1429,12 +1406,7 @@ SV **sp;
+ #endif
+ #ifdef HAS_SEM
+ case OP_SEMCTL:
+-#ifdef __linux__ /* XXX Need metaconfig test */
+- unsemds.buf = (struct semid_ds *)a;
+- ret = semctl(id, n, cmd, unsemds);
+-#else
+ ret = semctl(id, n, cmd, (struct semid_ds *)a);
+-#endif
+ break;
+ #endif
+ #ifdef HAS_SHM
+EOPATCH
+ }
+ # Incorrect prototype added as part of 8ac853655d9b7447, fixed as part
+ # of commit dc45a647708b6c54, with at least one intermediate
+ # modification. Correct prototype for gethostbyaddr has socklen_t
+ # second. Linux has uint32_t first for getnetbyaddr.
+ # Easiest just to remove, instead of attempting more complex patching.
+ # Something similar may be needed on other platforms.
+ edit_file('pp_sys.c', sub {
+ my $code = shift;
+ $code =~ s/^ struct hostent \*(?:PerlSock_)?gethostbyaddr\([^)]+\);$//m;
+ $code =~ s/^ struct netent \*getnetbyaddr\([^)]+\);$//m;
+ return $code;
+ });
+ }
+
+ if ($major < 5 && $^O eq 'aix'
+ && !extract_from_file('pp_sys.c',
+ qr/defined\(HOST_NOT_FOUND\) && !defined\(h_errno\)/)) {
+ # part of commit dc45a647708b6c54
+ # Andy Dougherty's configuration patches (Config_63-01 up to 04).
+ apply_patch(<<'EOPATCH')
+diff --git a/pp_sys.c b/pp_sys.c
+index c2fcb6f..efa39fb 100644
+--- a/pp_sys.c
++++ b/pp_sys.c
+@@ -54,7 +54,7 @@ extern "C" int syscall(unsigned long,...);
+ #endif
+ #endif
+
+-#ifdef HOST_NOT_FOUND
++#if defined(HOST_NOT_FOUND) && !defined(h_errno)
+ extern int h_errno;
+ #endif
+
+EOPATCH
+ }
+
+ if ($major == 5
+ && `git rev-parse HEAD` eq "22c35a8c2392967a5ba6b5370695be464bd7012c\n") {
+ # Commit 22c35a8c2392967a is significant,
+ # "phase 1 of somewhat major rearrangement of PERL_OBJECT stuff"
+ # but doesn't build due to 2 simple errors. blead in this broken state
+ # was merged to the cfgperl branch, and then these were immediately
+ # corrected there. cfgperl (with the fixes) was merged back to blead.
+ # The resultant rather twisty maze of commits looks like this:
+
+=begin comment
+
+* | | commit 137225782c183172f360c827424b9b9f8adbef0e
+|\ \ \ Merge: 22c35a8 2a8ee23
+| |/ / Author: Gurusamy Sarathy <gsar@cpan.org>
+| | | Date: Fri Oct 30 17:38:36 1998 +0000
+| | |
+| | | integrate cfgperl tweaks into mainline
+| | |
+| | | p4raw-id: //depot/perl@2144
+| | |
+| * | commit 2a8ee23279873759693fa83eca279355db2b665c
+| | | Author: Jarkko Hietaniemi <jhi@iki.fi>
+| | | Date: Fri Oct 30 13:27:39 1998 +0000
+| | |
+| | | There can be multiple yacc/bison errors.
+| | |
+| | | p4raw-id: //depot/cfgperl@2143
+| | |
+| * | commit 93fb2ac393172fc3e2c14edb20b718309198abbc
+| | | Author: Jarkko Hietaniemi <jhi@iki.fi>
+| | | Date: Fri Oct 30 13:18:43 1998 +0000
+| | |
+| | | README.posix-bc update.
+| | |
+| | | p4raw-id: //depot/cfgperl@2142
+| | |
+| * | commit 4ec43091e8e6657cb260b5e563df30aaa154effe
+| | | Author: Jarkko Hietaniemi <jhi@iki.fi>
+| | | Date: Fri Oct 30 09:12:59 1998 +0000
+| | |
+| | | #2133 fallout.
+| | |
+| | | p4raw-id: //depot/cfgperl@2141
+| | |
+| * | commit 134ca994cfefe0f613d43505a885e4fc2100b05c
+| |\ \ Merge: 7093112 22c35a8
+| |/ / Author: Jarkko Hietaniemi <jhi@iki.fi>
+|/| | Date: Fri Oct 30 08:43:18 1998 +0000
+| | |
+| | | Integrate from mainperl.
+| | |
+| | | p4raw-id: //depot/cfgperl@2140
+| | |
+* | | commit 22c35a8c2392967a5ba6b5370695be464bd7012c
+| | | Author: Gurusamy Sarathy <gsar@cpan.org>
+| | | Date: Fri Oct 30 02:51:39 1998 +0000
+| | |
+| | | phase 1 of somewhat major rearrangement of PERL_OBJECT stuff
+| | | (objpp.h is gone, embed.pl now does some of that); objXSUB.h
+| | | should soon be automated also; the global variables that
+| | | escaped the PL_foo conversion are now reined in; renamed
+| | | MAGIC in regcomp.h to REG_MAGIC to avoid collision with the
+| | | type of same name; duplicated lists of pp_things in various
+| | | places is now gone; result has only been tested on win32
+| | |
+| | | p4raw-id: //depot/perl@2133
+
+=end comment
+
+=cut
+
+ # and completely confuses git bisect (and at least me), causing it to
+ # the bisect run to confidently return the wrong answer, an unrelated
+ # commit on the cfgperl branch.
+
+ apply_commit('4ec43091e8e6657c');
+ }
+
+ if ($major == 5
+ && extract_from_file('pp_sys.c', qr/PERL_EFF_ACCESS_R_OK/)
+ && !extract_from_file('pp_sys.c', qr/XXX Configure test needed for eaccess/)) {
+ # Between 5ff3f7a4e03a6b10 and c955f1177b2e311d^
+ # This is the meat of commit c955f1177b2e311d (without the other
+ # indenting changes that would cause a conflict).
+ # Without this 538 revisions won't build on (at least) Linux
+ apply_patch(<<'EOPATCH');
+diff --git a/pp_sys.c b/pp_sys.c
+index d60c8dc..867dee4 100644
+--- a/pp_sys.c
++++ b/pp_sys.c
+@@ -198,9 +198,18 @@ static char zero_but_true[ZBTLEN + 1] = "0 but true";
+ # if defined(I_SYS_SECURITY)
+ # include <sys/security.h>
+ # endif
+-# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
+-# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
+-# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
++ /* XXX Configure test needed for eaccess */
++# ifdef ACC_SELF
++ /* HP SecureWare */
++# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
++# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
++# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
++# else
++ /* SCO */
++# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
++# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
++# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
++# endif
+ #endif
+
+ #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
+EOPATCH
+ }
+
+ if ($major == 5
+ && extract_from_file('mg.c', qr/If we're still on top of the stack, pop us off/)
+ && !extract_from_file('mg.c', qr/PL_savestack_ix -= popval/)) {
+ # Fix up commit 455ece5e082708b1:
+ # SSNEW() API for allocating memory on the savestack
+ # Message-Id: <tqemtae338.fsf@puma.genscan.com>
+ # Subject: [PATCH 5.005_51] (was: why SAVEDESTRUCTOR()...)
+ apply_commit('3c8a44569607336e', 'mg.c');
+ }
+
+ if ($major == 5) {
+ if (extract_from_file('doop.c', qr/croak\(no_modify\);/)
+ && extract_from_file('doop.c', qr/croak\(PL_no_modify\);/)) {
+ # Whilst the log suggests that this would only fix 5 commits, in
+ # practice this area of history is a complete tarpit, and git bisect
+ # gets very confused by the skips in the middle of the back and
+ # forth merging between //depot/perl and //depot/cfgperl
+ apply_commit('6393042b638dafd3');
+ }
+
+ # One error "fixed" with another:
+ if (extract_from_file('pp_ctl.c',
+ qr/\Qstatic void *docatch_body _((void *o));\E/)) {
+ apply_commit('5b51e982882955fe');
+ }
+ # Which is then fixed by this:
+ if (extract_from_file('pp_ctl.c',
+ qr/\Qstatic void *docatch_body _((valist\E/)) {
+ apply_commit('47aa779ee4c1a50e');
+ }
+
+ if (extract_from_file('thrdvar.h', qr/PERLVARI\(Tprotect/)
+ && !extract_from_file('embedvar.h', qr/PL_protect/)) {
+ # Commit 312caa8e97f1c7ee didn't update embedvar.h
+ apply_commit('e0284a306d2de082', 'embedvar.h');
+ }
+ }
+
+ if ($major == 5
+ && extract_from_file('sv.c',
+ qr/PerlDir_close\(IoDIRP\((?:\(IO\*\))?sv\)\);/)
+ && !(extract_from_file('toke.c',
+ qr/\QIoDIRP(FILTER_DATA(AvFILLp(PL_rsfp_filters))) = NULL\E/)
+ || extract_from_file('toke.c',
+ qr/\QIoDIRP(datasv) = (DIR*)NULL;\E/))) {
+ # Commit 93578b34124e8a3b, //depot/perl@3298
+ # close directory handles properly when localized,
+ # tweaked slightly by commit 1236053a2c722e2b,
+ # add test case for change#3298
+ #
+ # The fix is the last part of:
+ #
+ # various fixes for clean build and test on win32; configpm broken,
+ # needed to open myconfig.SH rather than myconfig; sundry adjustments
+ # to bytecode stuff; tweaks to DYNAMIC_ENV_FETCH code to make it
+ # work under win32; getenv_sv() changed to getenv_len() since SVs
+ # aren't visible in the lower echelons; remove bogus exports from
+ # config.sym; PERL_OBJECT-ness for C++ exception support; null out
+ # IoDIRP in filter_del() or sv_free() will attempt to close it
+ #
+ # The changed code is modified subsequently by commit e0c198038146b7a4
+ apply_commit('a6c403648ecd5cc7', 'toke.c');
+ }
+
+ if ($major < 6 && $^O eq 'netbsd'
+ && !extract_from_file('unixish.h',
+ qr/defined\(NSIG\).*defined\(__NetBSD__\)/)) {
+ apply_patch(<<'EOPATCH')
+diff --git a/unixish.h b/unixish.h
+index 2a6cbcd..eab2de1 100644
+--- a/unixish.h
++++ b/unixish.h
+@@ -89,7 +89,7 @@
+ */
+ /* #define ALTERNATE_SHEBANG "#!" / **/
+
+-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
++#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) || defined(__NetBSD__)
+ # include <signal.h>
+ #endif
+
+EOPATCH
+ }
+
+ if (($major >= 7 || $major <= 9) && $^O eq 'openbsd'
+ && `uname -m` eq "sparc64\n"
+ # added in 2000 by commit cb434fcc98ac25f5:
+ && extract_from_file('regexec.c',
+ qr!/\* No need to save/restore up to this paren \*/!)
+ # re-indented in 2006 by commit 95b2444054382532:
+ && extract_from_file('regexec.c', qr/^\t\tCURCUR cc;$/)) {
+ # Need to work around a bug in (at least) OpenBSD's 4.6's sparc64 #
+ # compiler ["gcc (GCC) 3.3.5 (propolice)"]. Between commits
+ # 3ec562b0bffb8b8b (2002) and 1a4fad37125bac3e^ (2005) the darling thing
+ # fails to compile any code for the statement cc.oldcc = PL_regcc;
+ #
+ # If you refactor the code to "fix" that, or force the issue using set
+ # in the debugger, the stack smashing detection code fires on return
+ # from S_regmatch(). Turns out that the compiler doesn't allocate any
+ # (or at least enough) space for cc.
+ #
+ # Restore the "uninitialised" value for cc before function exit, and the
+ # stack smashing code is placated. "Fix" 3ec562b0bffb8b8b (which
+ # changes the size of auto variables used elsewhere in S_regmatch), and
+ # the crash is visible back to bc517b45fdfb539b (which also changes
+ # buffer sizes). "Unfix" 1a4fad37125bac3e and the crash is visible until
+ # 5b47454deb66294b. Problem goes away if you compile with -O, or hack
+ # the code as below.
+ #
+ # Hence this turns out to be a bug in (old) gcc. Not a security bug we
+ # still need to fix.
+ apply_patch(<<'EOPATCH');
+diff --git a/regexec.c b/regexec.c
+index 900b491..6251a0b 100644
+--- a/regexec.c
++++ b/regexec.c
+@@ -2958,7 +2958,11 @@ S_regmatch(pTHX_ regnode *prog)
+ I,I
+ *******************************************************************/
+ case CURLYX: {
+- CURCUR cc;
++ union {
++ CURCUR hack_cc;
++ char hack_buff[sizeof(CURCUR) + 1];
++ } hack;
++#define cc hack.hack_cc
+ CHECKPOINT cp = PL_savestack_ix;
+ /* No need to save/restore up to this paren */
+ I32 parenfloor = scan->flags;
+@@ -2983,6 +2987,7 @@ S_regmatch(pTHX_ regnode *prog)
+ n = regmatch(PREVOPER(next)); /* start on the WHILEM */
+ regcpblow(cp);
+ PL_regcc = cc.oldcc;
++#undef cc
+ saySAME(n);
+ }
+ /* NOT REACHED */
+EOPATCH
+}
+
+ if ($major < 8 && $^O eq 'openbsd'
+ && !extract_from_file('perl.h', qr/include <unistd\.h>/)) {
+ # This is part of commit 3f270f98f9305540, applied at a slightly
+ # different location in perl.h, where the context is stable back to
+ # 5.000
+ apply_patch(<<'EOPATCH');
+diff --git a/perl.h b/perl.h
+index 9418b52..b8b1a7c 100644
+--- a/perl.h
++++ b/perl.h
+@@ -496,6 +496,10 @@ register struct op *Perl_op asm(stringify(OP_IN_REGISTER));
+ # include <sys/param.h>
+ #endif
+
++/* If this causes problems, set i_unistd=undef in the hint file. */
++#ifdef I_UNISTD
++# include <unistd.h>
++#endif
+
+ /* Use all the "standard" definitions? */
+ #if defined(STANDARD_C) && defined(I_STDLIB)
+EOPATCH
+ }
+}
+
+sub patch_ext {
+ if (-f 'ext/POSIX/Makefile.PL'
+ && extract_from_file('ext/POSIX/Makefile.PL',
+ qr/Explicitly avoid including/)) {
+ # commit 6695a346c41138df, which effectively reverts 170888cff5e2ffb7
+
+ # PERL5LIB is populated by make_ext.pl with paths to the modules we need
+ # to run, don't override this with "../../lib" since that may not have
+ # been populated yet in a parallel build.
+ apply_commit('6695a346c41138df');
+ }
+
+ if (-f 'ext/Hash/Util/Makefile.PL'
+ && extract_from_file('ext/Hash/Util/Makefile.PL',
+ qr/\bDIR\b.*'FieldHash'/)) {
+ # ext/Hash/Util/Makefile.PL should not recurse to FieldHash's Makefile.PL
+ # *nix, VMS and Win32 all know how to (and have to) call the latter directly.
+ # As is, targets in ext/Hash/Util/FieldHash get called twice, which may result
+ # in race conditions, and certainly messes up make clean; make distclean;
+ apply_commit('550428fe486b1888');
+ }
+
+ if ($major < 8 && $^O eq 'darwin' && !-f 'ext/DynaLoader/dl_dyld.xs') {
+ checkout_file('ext/DynaLoader/dl_dyld.xs', 'f556e5b971932902');
+ apply_patch(<<'EOPATCH');
+diff -u a/ext/DynaLoader/dl_dyld.xs~ a/ext/DynaLoader/dl_dyld.xs
+--- a/ext/DynaLoader/dl_dyld.xs~ 2011-10-11 21:41:27.000000000 +0100
++++ b/ext/DynaLoader/dl_dyld.xs 2011-10-11 21:42:20.000000000 +0100
+@@ -41,6 +41,35 @@
+ #include "perl.h"
+ #include "XSUB.h"
+
++#ifndef pTHX
++# define pTHX void
++# define pTHX_
++#endif
++#ifndef aTHX
++# define aTHX
++# define aTHX_
++#endif
++#ifndef dTHX
++# define dTHXa(a) extern int Perl___notused(void)
++# define dTHX extern int Perl___notused(void)
++#endif
++
++#ifndef Perl_form_nocontext
++# define Perl_form_nocontext form
++#endif
++
++#ifndef Perl_warn_nocontext
++# define Perl_warn_nocontext warn
++#endif
++
++#ifndef PTR2IV
++# define PTR2IV(p) (IV)(p)
++#endif
++
++#ifndef get_av
++# define get_av perl_get_av
++#endif
++
+ #define DL_LOADONCEONLY
+
+ #include "dlutils.c" /* SaveError() etc */
+@@ -185,7 +191,7 @@
+ CODE:
+ DLDEBUG(1,PerlIO_printf(Perl_debug_log, "dl_load_file(%s,%x):\n", filename,flags));
+ if (flags & 0x01)
+- Perl_warn(aTHX_ "Can't make loaded symbols global on this platform while loading %s",filename);
++ Perl_warn_nocontext("Can't make loaded symbols global on this platform while loading %s",filename);
+ RETVAL = dlopen(filename, mode) ;
+ DLDEBUG(2,PerlIO_printf(Perl_debug_log, " libref=%x\n", RETVAL));
+ ST(0) = sv_newmortal() ;
+EOPATCH
+ if ($major < 4 && !extract_from_file('util.c', qr/^form/m)) {
+ apply_patch(<<'EOPATCH');
+diff -u a/ext/DynaLoader/dl_dyld.xs~ a/ext/DynaLoader/dl_dyld.xs
+--- a/ext/DynaLoader/dl_dyld.xs~ 2011-10-11 21:56:25.000000000 +0100
++++ b/ext/DynaLoader/dl_dyld.xs 2011-10-11 22:00:00.000000000 +0100
+@@ -60,6 +60,18 @@
+ # define get_av perl_get_av
+ #endif
+
++static char *
++form(char *pat, ...)
++{
++ char *retval;
++ va_list args;
++ va_start(args, pat);
++ vasprintf(&retval, pat, &args);
++ va_end(args);
++ SAVEFREEPV(retval);
++ return retval;
++}
++
+ #define DL_LOADONCEONLY
+
+ #include "dlutils.c" /* SaveError() etc */
+EOPATCH
+ }
+ }
+
+ if ($major < 10) {
+ if (!extract_from_file('ext/DB_File/DB_File.xs',
+ qr!^#else /\* Berkeley DB Version > 2 \*/$!)) {
+ # This DB_File.xs is really too old to patch up.
+ # Skip DB_File, unless we're invoked with an explicit -Unoextensions
+ if (!exists $defines{noextensions}) {
+ $defines{noextensions} = 'DB_File';
+ } elsif (defined $defines{noextensions}) {
+ $defines{noextensions} .= ' DB_File';
+ }
+ } elsif (!extract_from_file('ext/DB_File/DB_File.xs',
+ qr/^#ifdef AT_LEAST_DB_4_1$/)) {
+ # This line is changed by commit 3245f0580c13b3ab
+ my $line = extract_from_file('ext/DB_File/DB_File.xs',
+ qr/^( status = \(?RETVAL->dbp->open\)?\(RETVAL->dbp, name, NULL, RETVAL->type, $)/);
+ apply_patch(<<"EOPATCH");
+diff --git a/ext/DB_File/DB_File.xs b/ext/DB_File/DB_File.xs
+index 489ba96..fba8ded 100644
+--- a/ext/DB_File/DB_File.xs
++++ b/ext/DB_File/DB_File.xs
+\@\@ -183,4 +187,8 \@\@
+ #endif
+
++#if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1)
++# define AT_LEAST_DB_4_1
++#endif
++
+ /* map version 2 features & constants onto their version 1 equivalent */
+
+\@\@ -1334,7 +1419,12 \@\@ SV * sv ;
+ #endif
+
++#ifdef AT_LEAST_DB_4_1
++ status = (RETVAL->dbp->open)(RETVAL->dbp, NULL, name, NULL, RETVAL->type,
++ Flags, mode) ;
++#else
+ $line
+ Flags, mode) ;
++#endif
+ /* printf("open returned %d %s\\n", status, db_strerror(status)) ; */
+
+EOPATCH
+ }
+ }
+
+ if ($major < 10 and -f 'ext/IPC/SysV/SysV.xs') {
+ edit_file('ext/IPC/SysV/SysV.xs', sub {
+ my $xs = shift;
+ my $fixed = <<'EOFIX';
+
+#include <sys/types.h>
+#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
+#ifndef HAS_SEM
+# include <sys/ipc.h>
+#endif
+# ifdef HAS_MSG
+# include <sys/msg.h>
+# endif
+# ifdef HAS_SHM
+# if defined(PERL_SCO) || defined(PERL_ISC)
+# include <sys/sysmacros.h> /* SHMLBA */
+# endif
+# include <sys/shm.h>
+# ifndef HAS_SHMAT_PROTOTYPE
+ extern Shmat_t shmat (int, char *, int);
+# endif
+# if defined(HAS_SYSCONF) && defined(_SC_PAGESIZE)
+# undef SHMLBA /* not static: determined at boot time */
+# define SHMLBA sysconf(_SC_PAGESIZE)
+# elif defined(HAS_GETPAGESIZE)
+# undef SHMLBA /* not static: determined at boot time */
+# define SHMLBA getpagesize()
+# endif
+# endif
+#endif
+EOFIX
+ $xs =~ s!
+#include <sys/types\.h>
+.*
+(#ifdef newCONSTSUB|/\* Required)!$fixed$1!ms;
+ return $xs;
+ });
+ }
+}
+
# Local variables:
# cperl-indent-level: 4
# indent-tabs-mode: nil
https://perl5.git.perl.org / perl5.git / blobdiff