change#4705 breaks code that interpolates $], so leave string value

of $] as it was for compatibility (and perhaps introduce $^V or similar
for the utf8 representation, maybe?)

p4raw-link: @4705 on //depot/utfperl: a7cb1f9979dd83ab32266dc555f72f0939829c3f

p4raw-id: //depot/perl@4742

diff --git a/configpm b/configpm
index f57ef0b..8c53dbb 100755 (executable)
--- a/configpm
+++ b/configpm
@@ -17,7 +17,7 @@ my $glossary = $ARGV[1] || 'Porting/Glossary';
 
 
 open CONFIG, ">$config_pm" or die "Can't open $config_pm: $!\n";
-$myver = 0+$];
+$myver = $];
 
 print CONFIG <<'ENDOFBEG_NOQ', <<"ENDOFBEG";
 package Config;
@@ -39,7 +39,7 @@ sub import {
 
 ENDOFBEG_NOQ
 \$] == $myver
-  or die "Perl lib version ($myver) doesn't match executable version (" . 0+\$] . ")";
+  or die "Perl lib version ($myver) doesn't match executable version (\$])";
 
 # This file was created by configpm when Perl was built. Any changes
 # made to this file will be lost the next time perl is built.

diff --git a/gv.c b/gv.c
index e2c6349..30d8f1e 100644 (file)
--- a/gv.c
+++ b/gv.c
@@ -812,8 +812,11 @@ Perl_gv_fetchpv(pTHX_ const char *nambeg, I32 add, I32 sv_type)
     case ']':
        if (len == 1) {
            SV *sv = GvSV(gv);
-           GvSV(gv) = SvREFCNT_inc(PL_patchlevel);
-           SvREFCNT_dec(sv);
+           (void)SvUPGRADE(sv, SVt_PVNV);
+           SvNVX(sv) = SvNVX(PL_patchlevel);
+           SvNOK_on(sv);
+           (void)SvPV_nolen(sv);
+           SvREADONLY_on(sv);
        }
        break;
     }