[PATCH] spawn: reinstate directory existence check

[Eric Wong]

We must not attempt to use Inline::C unless a user requests
it (by creating the directory) or running lei.
---
 lib/PublicInbox/Spawn.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/Spawn.pm b/lib/PublicInbox/Spawn.pm
index ec256698..265638fe 100644
--- a/lib/PublicInbox/Spawn.pm
+++ b/lib/PublicInbox/Spawn.pm
@@ -287,6 +287,7 @@ ALL_LIBC
                        $ENV{XDG_CACHE_HOME} //
                        ( ($ENV{HOME} // '/nonexistent').'/.cache' )
                ).'/public-inbox/inline-c';
+       undef $all_libc unless -d $inline_dir;
        if (defined $all_libc) {
                local $ENV{PERL_INLINE_DIRECTORY} = $inline_dir;
                use autodie;