[PATCH v2 10/16] environment: stub out environment API for PBL

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

To optimize out calls to undefined functions in PBL at compile-time
instead of link time, let's define stubs for the functions that
are referenced in obj-pbl-y files, but inside function sections
that are ultimately unreferenced.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 include/environment.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/environment.h b/include/environment.h
index 8b143c16b7ad..bd863ad3f425 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -29,7 +29,7 @@ struct env_context *get_current_context(void);
 char *var_val(struct variable_d *);
 char *var_name(struct variable_d *);
 
-#ifdef CONFIG_ENVIRONMENT_VARIABLES
+#if IS_ENABLED(CONFIG_ENVIRONMENT_VARIABLES) && IN_PROPER
 const char *getenv(const char *);
 int setenv(const char *, const char *);
 int pr_setenv(const char *, const char *fmt, ...)  __attribute__ ((format(__printf__, 2, 3)));
-- 
2.39.5