Both __ILP32__ and __x86_64__ need to be defined for a system to
be considered x32. Without this, my 32-bit Debian VM on a
64-bit kernel would fail after upgrading to Perl 5.32.1 on
Debian 11 (bullseye).
---
lib/PublicInbox/Syscall.pm | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/PublicInbox/Syscall.pm b/lib/PublicInbox/Syscall.pm
index cecb1247..530ee93b 100644
--- a/lib/PublicInbox/Syscall.pm
+++ b/lib/PublicInbox/Syscall.pm
@@ -87,7 +87,9 @@ if ($^O eq "linux") {
# if we're running on an x86_64 kernel, but a 32-bit process,
# we need to use the x32 or i386 syscall numbers.
if ($machine eq 'x86_64') {
- $machine = $Config{cppsymbols} =~ /\b__ILP32__=1\b/ ? 'x32' : 'i386'
+ my $s = $Config{cppsymbols};
+ $machine = ($s =~ /\b__ILP32__=1\b/ && $s =~ /\b__x86_64__=1\b/) ?
+ 'x32' : 'i386'
} elsif ($machine eq 'mips64') { # similarly for mips64 vs mips
$machine = 'mips';
}
