Export PL_curinterp symbol for MULTIPLICITY without USE_ITHREADS

This is necessary for XS extensions that define PERL_CORE.  In that
situation PERL_GET_CONTEXT will resolve to PL_curinterp, which is
normally not exported (extensions call Perl_Gcurinterp_ptr() to get a
pointer to PL_curinterp instead). With USE_ITHREADS defined
PERL_GET_CONTEXT will expand to Perl_get_context() even inside the
core because the context needs to be fetched from threadlocal storage.

diff --git a/makedef.pl b/makedef.pl
index 858c1eb..b4d76ea 100644 (file)
--- a/makedef.pl
+++ b/makedef.pl
@@ -1223,6 +1223,10 @@ if ($define{'MULTIPLICITY'}) {
        my $glob = readvar($f, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
        emit_symbols $glob;
     }
+    unless ($define{'USE_ITHREADS'}) {
+       # XXX needed for XS extensions that define PERL_CORE
+       emit_symbol("PL_curinterp");
+    }
     # XXX AIX seems to want the perlvars.h symbols, for some reason
     if ($PLATFORM eq 'aix' or $PLATFORM eq 'os2') {    # OS/2 needs PL_thr_key
        my $glob = readvar($perlvars_h);