sdk: provide a config symbol for detecting builds within the SDK

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/target/sdk/files/Config.in b/target/sdk/files/Config.in
index 064cb0527bbb0a541a5b102d2c40e7f281296201..0614f31d604d2c228648d2afacae560185b49c92 100644 (file)
--- a/target/sdk/files/Config.in
+++ b/target/sdk/files/Config.in
@@ -18,6 +18,10 @@ menu "Global build settings"
 
 endmenu
 
+config IN_SDK
+       default y
+       bool
+
 config MODULES
        bool
        default y