app-shells/zsh/files/4.3.11-subst.patch


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Bugs-Gentoo: https://bugs.gentoo.org/show_bug.cgi?id=352056
--- a/Src/subst.c
+++ b/Src/subst.c
@@ -2814,12 +2814,14 @@
 			zerr("invalid length: %s", check_offset);
 			return NULL;
 		    }
-		    length = mathevali(check_offset);
-		    if (errflag)
-			return NULL;
-		    if (length < (zlong)0) {
-			zerr("invalid length: %s", check_offset);
-			return NULL;
+                    if (check_offset) {
+			length = mathevali(check_offset);
+			if (errflag)
+			    return NULL;
+			if (length < (zlong)0) {
+			    zerr("invalid length: %s", check_offset);
+			    return NULL;
+			}
 		    }
 		}
 		if (horrible_offset_hack) {