Integrate change #10739 from maintperl:

C<eval "/x$\r\n/x"> fails to compile correctly 

p4raw-link: @10739 on //depot/maint-5.6/perl: a3d864e88a38f4417518c9eac1d0058e2537efe7

p4raw-id: //depot/perl@10742
p4raw-integrated: from //depot/maint-5.6/perl@10741 'merge in'
	t/op/pat.t (@9675..) toke.c (@10158..)

2 files changed, 20 insertions, 2 deletions

diff --git a/t/op/pat.t b/t/op/pat.t
index c59e31f87f..942e6e65f9 100755
--- a/t/op/pat.t
+++ b/t/op/pat.t
@@ -6,7 +6,7 @@
 
 $| = 1;
 
-print "1..630\n";
+print "1..632\n";
 
 BEGIN {
     chdir 't' if -d 't';
@@ -1765,3 +1765,21 @@ EOT
     print "ok 630\n";
 }
 
+$_ = "foo";
+
+eval <<"EOT"; die if $@;
+  /f
+   o\r
+   o
+   \$
+  /x && print "ok 631\n";
+EOT
+
+eval <<"EOT"; die if $@;
+  /f
+   o
+   o
+   \$\r
+  /x && print "ok 632\n";
+EOT
+
diff --git a/toke.c b/toke.c
index fca0f73bb8..34e2fd4306 100644
--- a/toke.c
+++ b/toke.c
@@ -1374,7 +1374,7 @@ S_scan_const(pTHX_ char *start)
 	else if (*s == '$') {
 	    if (!PL_lex_inpat)	/* not a regexp, so $ must be var */
 		break;
-	    if (s + 1 < send && !strchr("()| \n\t", s[1]))
+	    if (s + 1 < send && !strchr("()| \r\n\t", s[1]))
 		break;		/* in regexp, $ might be tail anchor */
 	}