PL_in_load_module only has values 0 and 1, so can be a bool instead of int.

1 files changed, 2 insertions, 3 deletions

diff --git a/perlio.c b/perlio.c
index d015b587e2..57a61d92f4 100644
--- a/perlio.c
+++ b/perlio.c
@@ -807,17 +807,16 @@ PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load)
 	    SV * const layer = newSVpvn(name, len);
 	    CV * const cv    = get_cvs("PerlIO::Layer::NoWarnings", 0);
 	    ENTER;
-	    SAVEINT(PL_in_load_module);
+	    SAVEBOOL(PL_in_load_module);
 	    if (cv) {
 		SAVEGENERICSV(PL_warnhook);
 		PL_warnhook = MUTABLE_SV((SvREFCNT_inc_simple_NN(cv)));
 	    }
-	    PL_in_load_module++;
+	    PL_in_load_module = TRUE;
 	    /*
 	     * The two SVs are magically freed by load_module
 	     */
 	    Perl_load_module(aTHX_ 0, pkgsv, NULL, layer, NULL);
-	    PL_in_load_module--;
 	    LEAVE;
 	    return PerlIO_find_layer(aTHX_ name, len, 0);
 	}