X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=utils%2Fh2ph.PL;h=9082e143619a445304952a33cf7c5305e143f709;hb=9df548ee6c72d2540cc8aac7e738eff1202a7278;hp=7c36f21079b675a354a11bba63badd665dece6aa;hpb=4a8e146e38ec2045f1f817a7cb578e1b1f80f39f;p=p5sagit%2Fp5-mst-13.2.git diff --git a/utils/h2ph.PL b/utils/h2ph.PL index 7c36f21..9082e14 100644 --- a/utils/h2ph.PL +++ b/utils/h2ph.PL @@ -1,7 +1,8 @@ #!/usr/local/bin/perl use Config; -use File::Basename qw(&basename &dirname); +use File::Basename qw(basename dirname); +use Cwd; # List explicitly here the variables you want Configure to # generate. Metaconfig only looks for shell variables, so you @@ -13,6 +14,7 @@ use File::Basename qw(&basename &dirname); # This forces PL files to create target in same directory as PL file. # This is so that make depend always knows where to find PL derivatives. +$origdir = cwd; chdir dirname($0); $file = basename($0, '.PL'); $file .= '.com' if $^O eq 'VMS'; @@ -34,66 +36,80 @@ $Config{startperl} print OUT <<'!NO!SUBS!'; +use strict; + use Config; use File::Path qw(mkpath); +use Getopt::Std; + +getopts('Dd:rlhaQ'); +use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q); +die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a); +my @inc_dirs = inc_dirs() if $opt_a; my $Exit = 0; -my $Dest_dir = (@ARGV && $ARGV[0] =~ s/^-d//) - ? shift || shift - : $Config{installsitearch}; +my $Dest_dir = $opt_d || $Config{installsitearch}; die "Destination directory $Dest_dir doesn't exist or isn't a directory\n" unless -d $Dest_dir; -@isatype = split(' ',<-"); - } - else { + } else { ($outfile = $file) =~ s/\.h$/.ph/ || next; - print "$file -> $outfile\n"; + print "$file -> $outfile\n" unless $opt_Q; if ($file =~ m|^(.*)/|) { $dir = $1; mkpath "$Dest_dir/$dir"; } + + if ($opt_a) { # automagic mode: locate header file in @inc_dirs + foreach (@inc_dirs) { + chdir $_; + last if -f $file; + } + } + open(IN,"$file") || (($Exit = 1),(warn "Can't open $file: $!\n"),next); open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n"; } - while () { - chop; - while (/\\$/) { - chop; - $_ .= ; - chop; - } - if (s:/\*:\200:g) { - s:\*/:\201:g; - s/\200[^\201]*\201//g; # delete single line comments - if (s/\200.*//) { # begin multi-line comment? - $_ .= '/*'; - $_ .= ; - redo; - } - } - if (s/^#\s*//) { + + print OUT "require '_h2ph_pre.ph';\n\n"; + while (defined (local $_ = next_line())) { + if (s/^\s*\#\s*//) { if (s/^define\s+(\w+)//) { $name = $1; $new = ''; @@ -103,7 +119,7 @@ foreach $file (@ARGV) { my $proto = '() '; if ($args ne '') { $proto = ''; - foreach $arg (split(/,\s*/,$args)) { + foreach my $arg (split(/,\s*/,$args)) { $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; $curargs{$arg} = 1; } @@ -112,94 +128,184 @@ foreach $file (@ARGV) { } s/^\s+//; expr(); - $new =~ s/(["\\])/\\$1/g; + $new =~ s/(["\\])/\\$1/g; #"]); + $new = reindent($new); + $args = reindent($args); if ($t ne '') { - $new =~ s/(['\\])/\\$1/g; - print OUT $t, - "eval 'sub $name $proto\{\n$t ${args}eval \"$new\";\n$t}' unless defined(\&$name);\n"; - } - else { - print OUT "unless defined(\&$name) {\nsub $name $proto\{\n ${args}eval \"$new\";\n}\n}\n"; + $new =~ s/(['\\])/\\$1/g; #']); + if ($opt_h) { + print OUT $t, + "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; + $eval_index++; + } else { + print OUT $t, + "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; + } + } else { + print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n"; } %curargs = (); - } - else { + } else { s/^\s+//; expr(); $new = 1 if $new eq ''; + $new = reindent($new); + $args = reindent($args); if ($t ne '') { - $new =~ s/(['\\])/\\$1/g; - print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n"; - } - else { - print OUT $t,"unless(defined(\&$name)) {\nsub $name () {",$new,";}\n}\n"; + $new =~ s/(['\\])/\\$1/g; #']); + + if ($opt_h) { + print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n"; + $eval_index++; + } else { + print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n"; + } + } else { + # Shunt around such directives as `#define FOO FOO': + next if " \&$name" eq $new; + + print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n"; } } - } - elsif (/^include\s*<(.*)>/) { - ($incl = $1) =~ s/\.h$/.ph/; + } elsif (/^(include|import)\s*[<"](.*)[>"]/) { + ($incl = $2) =~ s/\.h$/.ph/; print OUT $t,"require '$incl';\n"; - } - elsif (/^ifdef\s+(\w+)/) { - print OUT $t,"if (defined &$1) {\n"; + } elsif(/^include_next\s*[<"](.*)[>"]/) { + ($incl = $1) =~ s/\.h$/.ph/; + print OUT ($t, + "eval {\n"); + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + print OUT ($t, + "my(\%INCD) = map { \$INC{\$_} => 1 } ", + "(grep { \$_ eq \"$incl\" } keys(\%INC));\n"); + print OUT ($t, + "my(\@REM) = map { \"\$_/$incl\" } ", + "(grep { not exists(\$INCD{\"\$_/$incl\"})", + "and -f \"\$_/$incl\" } \@INC);\n"); + print OUT ($t, + "require \"\$REM[0]\" if \@REM;\n"); + $tab -= 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + print OUT ($t, + "};\n"); + print OUT ($t, + "warn(\$\@) if \$\@;\n"); + } elsif (/^ifdef\s+(\w+)/) { + print OUT $t,"if(defined(&$1)) {\n"; $tab += 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - } - elsif (/^ifndef\s+(\w+)/) { - print OUT $t,"if (!defined &$1) {\n"; + } elsif (/^ifndef\s+(\w+)/) { + print OUT $t,"unless(defined(&$1)) {\n"; $tab += 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - } - elsif (s/^if\s+//) { + } elsif (s/^if\s+//) { $new = ''; $inif = 1; expr(); $inif = 0; - print OUT $t,"if ($new) {\n"; + print OUT $t,"if($new) {\n"; $tab += 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - } - elsif (s/^elif\s+//) { + } elsif (s/^elif\s+//) { $new = ''; $inif = 1; expr(); $inif = 0; $tab -= 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - print OUT $t,"}\n${t}elsif ($new) {\n"; + print OUT $t,"}\n elsif($new) {\n"; $tab += 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - } - elsif (/^else/) { + } elsif (/^else/) { $tab -= 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - print OUT $t,"}\n${t}else {\n"; + print OUT $t,"} else {\n"; $tab += 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); - } - elsif (/^endif/) { + } elsif (/^endif/) { $tab -= 4; $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); print OUT $t,"}\n"; + } elsif(/^undef\s+(\w+)/) { + print OUT $t, "undef(&$1) if defined(&$1);\n"; + } elsif(/^error\s+(".*")/) { + print OUT $t, "die($1);\n"; + } elsif(/^error\s+(.*)/) { + print OUT $t, "die(\"", quotemeta($1), "\");\n"; + } elsif(/^warning\s+(.*)/) { + print OUT $t, "warn(\"", quotemeta($1), "\");\n"; + } elsif(/^ident\s+(.*)/) { + print OUT $t, "# $1\n"; + } + } elsif(/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { + until(/\{[^}]*\}.*;/ || /;/) { + last unless defined ($next = ); + chomp $next; + # drop "#define FOO FOO" in enums + $next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//; + $_ .= $next; + print OUT "# $next\n" if $opt_D; + } + s/#\s*if.*?#\s*endif//g; # drop #ifdefs + s@/\*.*?\*/@@g; + s/\s+/ /g; + next unless /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/; + (my $enum_subs = $3) =~ s/\s//g; + my @enum_subs = split(/,/, $enum_subs); + my $enum_val = -1; + foreach my $enum (@enum_subs) { + my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/; + $enum_value =~ s/^=//; + $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1); + if ($opt_h) { + print OUT ($t, + "eval(\"\\n#line $eval_index $outfile\\n", + "sub $enum_name () \{ $enum_val; \}\") ", + "unless defined(\&$enum_name);\n"); + ++ $eval_index; + } else { + print OUT ($t, + "eval(\"sub $enum_name () \{ $enum_val; \}\") ", + "unless defined(\&$enum_name);\n"); + } } } } print OUT "1;\n"; + + $Is_converted{$file} = 1; + queue_includes_from($file) if ($opt_a); } exit $Exit; + +sub reindent($) { + my($text) = shift; + $text =~ s/\n/\n /g; + $text =~ s/ /\t/g; + $text; +} + + sub expr { + my $joined_args; + if(keys(%curargs)) { + $joined_args = join('|', keys(%curargs)); + } while ($_ ne '') { + s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator + s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of s/^(\s+)// && do {$new .= ' '; next;}; - s/^(0x[0-9a-fA-F]+)// && do {$new .= $1; next;}; - s/^(\d+)[LlUu]*// && do {$new .= $1; next;}; + s/^(0X[0-9A-F]+)[UL]*//i && do {$new .= lc($1); next;}; + s/^(-?\d+\.\d+E[-+]\d+)F?//i && do {$new .= $1; next;}; + s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;}; s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; s/^'((\\"|[^"])*)'// && do { if ($curargs{$1}) { $new .= "ord('\$$1')"; - } - else { + } else { $new .= "ord('$1')"; } next; @@ -229,48 +335,63 @@ sub expr { substr($_, 0, $index - 1) =~ s/\*//g; next; }; + # Eliminate typedefs + /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do { + foreach (split /\s+/, $1) { # Make sure all the words are types, + last unless ($isatype{$_} or $_ eq 'struct'); + } + s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them. + }; + # struct/union member, including arrays: + s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do { + my $id = $1; + $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g; + $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args); + while($id =~ /\[\s*([^\$\&\d\]]+)\]/) { + my($index) = $1; + $index =~ s/\s//g; + if(exists($curargs{$index})) { + $index = "\$$index"; + } else { + $index = "&$index"; + } + $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/; + } + $new .= " (\$$id)"; + }; s/^([_a-zA-Z]\w*)// && do { - $id = $1; + my $id = $1; if ($id eq 'struct') { s/^\s+(\w+)//; $id .= ' ' . $1; $isatype{$id} = 1; - } - elsif ($id eq 'unsigned' || $id eq 'long') { - s/^\s+(\w+)//; - $id .= ' ' . $1; + } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) { + while (s/^\s+(\w+)//) { $id .= ' ' . $1; } $isatype{$id} = 1; } if ($curargs{$id}) { - $new .= '$' . $id; - } - elsif ($id eq 'defined') { + $new .= "\$$id"; + $new .= '->' if /^[\[\{]/; + } elsif ($id eq 'defined') { $new .= 'defined'; - } - elsif (/^\(/) { - s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat + } elsif (/^\s*\(/) { + s/^\s*\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat $new .= " &$id"; - } - elsif ($isatype{$id}) { + } elsif ($isatype{$id}) { if ($new =~ /{\s*$/) { $new .= "'$id'"; - } - elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { + } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { $new =~ s/\(\s*$//; s/^[\s*]*\)//; - } - else { + } else { $new .= q(').$id.q('); } - } - else { + } else { if ($inif && $new !~ /defined\s*\($/) { $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)'; - } - elsif (/^\[/) { - $new .= ' $' . $id; - } - else { + } elsif (/^\[/) { + $new .= " \$$id"; + } else { $new .= ' &' . $id; } } @@ -279,6 +400,256 @@ sub expr { s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; } } + + +sub next_line +{ + my ($in, $out); + my $pre_sub_tri_graphs = 1; + + READ: while (not eof IN) { + $in .= ; + chomp $in; + next unless length $in; + + while (length $in) { + if ($pre_sub_tri_graphs) { + # Preprocess all tri-graphs + # including things stuck in quoted string constants. + $in =~ s/\?\?=/#/g; # | ??=| #| + $in =~ s/\?\?\!/|/g; # | ??!| || + $in =~ s/\?\?'/^/g; # | ??'| ^| + $in =~ s/\?\?\(/[/g; # | ??(| [| + $in =~ s/\?\?\)/]/g; # | ??)| ]| + $in =~ s/\?\?\-/~/g; # | ??-| ~| + $in =~ s/\?\?\//\\/g; # | ??/| \| + $in =~ s/\?\?/}/g; # | ??>| }| + } + if ($in =~ s/\\$//) { # \-newline + $out .= ' '; + next READ; + } elsif ($in =~ s/^([^"'\\\/]+)//) { # Passthrough + $out .= $1; + } elsif ($in =~ s/^(\\.)//) { # \... + $out .= $1; + } elsif ($in =~ s/^('(\\.|[^'\\])*')//) { # '... + $out .= $1; + } elsif ($in =~ s/^("(\\.|[^"\\])*")//) { # "... + $out .= $1; + } elsif ($in =~ s/^\/\/.*//) { # //... + last READ; + } elsif ($in =~ m/^\/\*/) { # /*... + # C comment removal adapted from perlfaq6: + if ($in =~ s/^\/\*[^*]*\*+([^\/*][^*]*\*+)*\///) { + $out .= ' '; + } else { # Incomplete /* */ + next READ; + } + } elsif ($in =~ s/^(\/)//) { # /... + $out .= $1; + } elsif ($in =~ s/^([^\'\"\\\/]+)//) { + $out .= $1; + } else { + die "Cannot parse:\n$in\n"; + } + } + + last READ; + } + + return $out; +} + + +# Handle recursive subdirectories without getting a grotesquely big stack. +# Could this be implemented using File::Find? +sub next_file +{ + my $file; + + while (@ARGV) { + $file = shift @ARGV; + + if ($file eq '-' or -f $file or -l $file) { + return $file; + } elsif (-d $file) { + if ($opt_r) { + expand_glob($file); + } else { + print STDERR "Skipping directory `$file'\n"; + } + } elsif ($opt_a) { + return $file; + } else { + print STDERR "Skipping `$file': not a file or directory\n"; + } + } + + return undef; +} + + +# Put all the files in $directory into @ARGV for processing. +sub expand_glob +{ + my ($directory) = @_; + + $directory =~ s:/$::; + + opendir DIR, $directory; + foreach (readdir DIR) { + next if ($_ eq '.' or $_ eq '..'); + + # expand_glob() is going to be called until $ARGV[0] isn't a + # directory; so push directories, and unshift everything else. + if (-d "$directory/$_") { push @ARGV, "$directory/$_" } + else { unshift @ARGV, "$directory/$_" } + } + closedir DIR; +} + + +# Given $file, a symbolic link to a directory in the C include directory, +# make an equivalent symbolic link in $Dest_dir, if we can figure out how. +# Otherwise, just duplicate the file or directory. +sub link_if_possible +{ + my ($dirlink) = @_; + my $target = eval 'readlink($dirlink)'; + + if ($target =~ m:^\.\./: or $target =~ m:^/:) { + # The target of a parent or absolute link could leave the $Dest_dir + # hierarchy, so let's put all of the contents of $dirlink (actually, + # the contents of $target) into @ARGV; as a side effect down the + # line, $dirlink will get created as an _actual_ directory. + expand_glob($dirlink); + } else { + if (-l "$Dest_dir/$dirlink") { + unlink "$Dest_dir/$dirlink" or + print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n"; + } + + if (eval 'symlink($target, "$Dest_dir/$dirlink")') { + print "Linking $target -> $Dest_dir/$dirlink\n"; + + # Make sure that the link _links_ to something: + if (! -e "$Dest_dir/$target") { + mkpath("$Dest_dir/$target", 0755) or + print STDERR "Could not create $Dest_dir/$target/\n"; + } + } else { + print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n"; + } + } +} + + +# Push all #included files in $file onto our stack, except for STDIN +# and files we've already processed. +sub queue_includes_from +{ + my ($file) = @_; + my $line; + + return if ($file eq "-"); + + open HEADER, $file or return; + while (defined($line =
)) { + while (/\\$/) { # Handle continuation lines + chop $line; + $line .=
; + } + + if ($line =~ /^#\s*include\s+<(.*?)>/) { + push(@ARGV, $1) unless $Is_converted{$1}; + } + } + close HEADER; +} + + +# Determine include directories; $Config{usrinc} should be enough for (all +# non-GCC?) C compilers, but gcc uses an additional include directory. +sub inc_dirs +{ + my $from_gcc = `$Config{cc} -v 2>&1`; + $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s; + + length($from_gcc) ? ($from_gcc, $Config{usrinc}) : ($Config{usrinc}); +} + + +# Create "_h2ph_pre.ph", if it doesn't exist or was built by a different +# version of h2ph. +sub build_preamble_if_necessary +{ + # Increment $VERSION every time this function is modified: + my $VERSION = 2; + my $preamble = "$Dest_dir/_h2ph_pre.ph"; + + # Can we skip building the preamble file? + if (-r $preamble) { + # Extract version number from first line of preamble: + open PREAMBLE, $preamble or die "Cannot open $preamble: $!"; + my $line = ; + $line =~ /(\b\d+\b)/; + close PREAMBLE or die "Cannot close $preamble: $!"; + + # Don't build preamble if a compatible preamble exists: + return if $1 == $VERSION; + } + + my (%define) = _extract_cc_defines(); + + open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!"; + print PREAMBLE "# This file was created by h2ph version $VERSION\n"; + + foreach (sort keys %define) { + if ($opt_D) { + print PREAMBLE "# $_=$define{$_}\n"; + } + + if ($define{$_} =~ /^(\d+)U?L{0,2}$/i) { + print PREAMBLE + "unless (defined &$_) { sub $_() { $1 } }\n\n"; + } elsif ($define{$_} =~ /^\w+$/) { + print PREAMBLE + "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n"; + } else { + print PREAMBLE + "unless (defined &$_) { sub $_() { \"", + quotemeta($define{$_}), "\" } }\n\n"; + } + } + close PREAMBLE or die "Cannot close $preamble: $!"; +} + + +# %Config contains information on macros that are pre-defined by the +# system's compiler. We need this information to make the .ph files +# function with perl as the .h files do with cc. +sub _extract_cc_defines +{ + my %define; + my $allsymbols = join " ", + @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'}; + + # Split compiler pre-definitions into `key=value' pairs: + foreach (split /\s+/, $allsymbols) { + /(.+?)=(.+)/ and $define{$1} = $2; + + if ($opt_D) { + print STDERR "$_: $1 -> $2\n"; + } + } + + return %define; +} + + +1; + ############################################################################## __END__ @@ -288,7 +659,7 @@ h2ph - convert .h C header files to .ph Perl header files =head1 SYNOPSIS -B +B =head1 DESCRIPTION @@ -299,12 +670,68 @@ It is most easily run while in /usr/include: cd /usr/include; h2ph * sys/* +or + + cd /usr/include; h2ph -r -l . + The output files are placed in the hierarchy rooted at Perl's architecture dependent library directory. You can specify a different hierarchy with a B<-d> switch. If run with no arguments, filters standard input to standard output. +=head1 OPTIONS + +=over 4 + +=item -d destination_dir + +Put the resulting B<.ph> files beneath B, instead of +beneath the default Perl library location (C<$Config{'installsitsearch'}>). + +=item -r + +Run recursively; if any of B are directories, then run I +on all files in those directories (and their subdirectories, etc.). B<-r> +and B<-a> are mutually exclusive. + +=item -a + +Run automagically; convert B, as well as any B<.h> files +which they include. This option will search for B<.h> files in all +directories which your C compiler ordinarily uses. B<-a> and B<-r> are +mutually exclusive. + +=item -l + +Symbolic links will be replicated in the destination directory. If B<-l> +is not specified, then links are skipped over. + +=item -h + +Put ``hints'' in the .ph files which will help in locating problems with +I. In those cases when you B a B<.ph> file containing syntax +errors, instead of the cryptic + + [ some error condition ] at (eval mmm) line nnn + +you will see the slightly more helpful + + [ some error condition ] at filename.ph line nnn + +However, the B<.ph> files almost double in size when built using B<-h>. + +=item -D + +Include the code from the B<.h> file as a comment in the B<.ph> file. +This is primarily used for debugging I. + +=item -Q + +``Quiet'' mode; don't print out the names of the files being converted. + +=back + =head1 ENVIRONMENT No environment variables are used. @@ -339,6 +766,22 @@ that it can translate. It's only intended as a rough tool. You may need to dicker with the files produced. +You have to run this program by hand; it's not run as part of the Perl +installation. + +Doesn't handle complicated expressions built piecemeal, a la: + + enum { + FIRST_VALUE, + SECOND_VALUE, + #ifdef ABC + THIRD_VALUE + #endif + }; + +Doesn't necessarily locate all of your C compiler's internally-defined +symbols. + =cut !NO!SUBS! @@ -346,3 +789,4 @@ You may need to dicker with the files produced. close OUT or die "Can't close $file: $!"; chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; +chdir $origdir;