Initialise SHLVL when shell is first started

1 files changed, 4 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 97c9589cc..e885e2ce5 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13605,6 +13605,10 @@ init(void)
                         pw = xgetpwuid(getuid());
                         setup_environment(pw->pw_shell,
                                                 SETUP_ENV_CHANGEENV|SETUP_ENV_NO_CHDIR, pw);
+
+#if ENABLE_ASH_BASH_COMPAT
+                        setvareq("SHLVL=0", VEXPORT|VTEXTFIXED);
+#endif
                 }
 #endif
                 for (envp = environ; envp && *envp; envp++) {