--- busybox-1.22.1/shell/ash.c | |
+++ busybox-1.22.1-ash/shell/ash.c | |
@@ -13014,7 +13014,7 @@ init(void) | |
setvar2("PPID", utoa(getppid())); | |
#if ENABLE_ASH_BASH_COMPAT | |
p = lookupvar("SHLVL"); | |
- setvar2("SHLVL", utoa(p ? atoi(p) + 1 : 1)); | |
+ setvar("SHLVL", utoa((p ? atoi(p) : 0) + 1), VEXPORT); | |
#endif | |
p = lookupvar("PWD"); | |
if (p) { |