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Postings from February 2003
Philip Newton <Philip.Newton@gmx.net> wrote:
:On Sun, 16 Feb 2003 06:30:06 -0800, hv@crypt.org (Hv) wrote:
:> +++ perl/embed.h Sun Feb 16 05:08:52 2003
[...]
:> @@ -1003,6 +1003,8 @@
:> #define sv_free Perl_sv_free
:> #ifdef PERL_CORE
:> +#endif
:> +#ifdef PERL_CORE
:> #define sv_free_arenas Perl_sv_free_arenas
[...]
:I presume having "#ifdef PERL_CORE / #endif" with nothing in between
:(twice) makes some sort of strange sense to someone, but the purpose
:eludes me. Can someone enlighten me, please?
1. This file is generated from embed.fnc. This fragment comes from:
Apd |void |sv_free |SV* sv
po |void |sv_free2 |SV* sv
pd |void |sv_free_arenas
2. The #ifdef is wrapped separately around each function definition
that isn't marked 'A'. But 'o' then suppresses the function alias.
I've applied the patch below as #18734 to suppress the #ifdef block
in this case, but we could also consider wrapping the normal alias
definition in a comment to make the derivation clearer.
Hugo
--- embed.pl.old Mon Feb 17 11:12:27 2003
+++ embed.pl Mon Feb 17 11:10:34 2003
@@ -344,7 +344,7 @@
$ret .= hide($func,"Perl_$func");
}
}
- unless ($flags =~ /A/) {
+ if ($ret ne '' && $flags !~ /A/) {
if ($flags =~ /E/) {
$ret = "#if defined(PERL_CORE) || defined(PERL_EXT)\n$ret#endif\n";
} else {