use Pod::Usage;
use Getopt::Std;
+use Config;
$Getopt::Std::STANDARD_HELP_VERSION = 1;
my $trysource = "try.c";
my $tryout = "try.i";
-getopts('fF:ekvI:', \my %opt) or pod2usage();
+getopts('fF:ekvI:X', \my %opt) or pod2usage();
my($expr, @headers) = @ARGV ? splice @ARGV : "-";
while (<$fh>) {
push @ARGV, $1 if m!^([^/]+\.h)\t!;
}
+ push @ARGV, 'config.h' if -f 'config.h';
}
my $header;
}
die "$macro not found\n" unless defined $header;
+if ($^O =~ /MSWin(32|64)/) {
+ # The Win32 (and Win64) build process expects to be run from
+ # bleadperl/Win32
+ chdir "Win32"
+ or die "Couldn't chdir to win32: $!";
+};
+
open my $out, '>', $trysource or die "Can't open $trysource: $!";
my $sentinel = "$macro expands to";
+# These two are included from perl.h, and perl.h sometimes redefines their
+# macros. So no need to include them.
+my %done_header = ('embed.h' => 1, 'embedvar.h' => 1);
+
+sub do_header {
+ my $header = shift;
+ return if $done_header{$header}++;
+ print $out qq{#include "$header"\n};
+}
+
+print $out <<'EOF' if $opt{X};
+/* Need to do this like this, as cflags.sh sets it for us come what may. */
+#undef PERL_CORE
+
+EOF
+
+do_header('EXTERN.h');
+do_header('perl.h');
+do_header($header);
+do_header('XSUB.h') if $opt{X};
+
print $out <<"EOF";
-#include "EXTERN.h"
-#include "perl.h"
-#include "$header"
#line 4 "$sentinel"
$macro$args
EOF
close $out or die "Can't close $trysource: $!";
-print "doing: make $tryout\n" if $opt{v};
-system "make $tryout" and die;
+print "doing: $Config{make} $tryout\n" if $opt{v};
+my $cmd = "$Config{make} $tryout";
+system( $cmd ) == 0
+ or die "Couldn't launch [$cmd]: $! / $?";
# if user wants 'indent' formatting ..
my $out_fh;
$out_fh = \*STDOUT;
}
-open my $fh, '<', $tryout or die "Can't open $tryout: $!";
+{
+ open my $fh, '<', $tryout or die "Can't open $tryout: $!";
-while (<$fh>) {
- print $out_fh $_ if /$sentinel/o .. 1;
-}
+ while (<$fh>) {
+ print $out_fh $_ if /$sentinel/o .. 1;
+ }
+};
unless ($opt{k}) {
foreach($trysource, $tryout) {
- die "Can't unlink $_" unless unlink $_;
+ die "Can't unlink $_: $!" unless unlink $_;
}
}
=head1 SYNOPSIS
- expand-macro.pl [options] [ < macro-name | macro-expression | - > [headers] ]
+ expand-macro.pl [options]
+ [ < macro-name | macro-expression | - > [headers] ]
options:
-f use 'indent' to format output
-F <tool> use <tool> to format output (instead of -f)
- -e erase try.[ic] instead of failing when they're present (errdetect)
+ -e erase try.[ic] instead of failing when they're present
+ (errdetect)
-k keep them after generating (for handy inspection)
-v verbose
-I <indent-opts> passed into indent
+ -X include "XSUB.h" (and undefine PERL_CORE)
=cut