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-rw-r--r--scripts/config/README4
-rw-r--r--scripts/config/symbol.c5
2 files changed, 9 insertions, 0 deletions
diff --git a/scripts/config/README b/scripts/config/README
index ac5f094ff2..81243e8016 100644
--- a/scripts/config/README
+++ b/scripts/config/README
@@ -16,6 +16,10 @@ OpenWrt Buildroot:
- reverted an upstream change that avoids writing symbols that are not
visible to .config, which breaks OpenWrt busybox's '.config' generation
logic.
+ - add a compilation option (-DWARN_RECURSIVE_DEP) to treat recursive deps
+ as a warning, avoiding a complete build failure because of unrelated or
+ minor recursive deps, or making a scrict check before commiting a change
+ that may cause one.
- use pre-built *.lex.c *.tab.[ch] files by default, to avoid depending on
flex & bison. Rebuild/remove these files only if running make with
BUILD_SHIPPED_FILES defined
diff --git a/scripts/config/symbol.c b/scripts/config/symbol.c
index b1dd9be29d..5c6f540314 100644
--- a/scripts/config/symbol.c
+++ b/scripts/config/symbol.c
@@ -1250,6 +1250,11 @@ struct symbol *sym_check_deps(struct symbol *sym)
sym->flags &= ~SYMBOL_CHECK;
}
+#ifdef WARN_RECURSIVE_DEP
+ if (sym2 && sym2 == sym)
+ sym2 = NULL;
+#endif
+
return sym2;
}