build system: stop moaning about unset integer CONFIGs.

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 79bb4a38e4d24bc255c1921ea0a71b384015e19e..4837f61d96bad3d480955e18e46e8e34b16019d9 100644 (file)
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -222,7 +222,8 @@ int conf_read_simple(const char *name)
                                        sym->user.val = strdup(p);
                                        sym->flags &= ~SYMBOL_NEW;
                                } else {
-                                       conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+                                       if (p[0]) /* bbox */
+                                               conf_warning("symbol value '%s' invalid for %s", p, sym->name);
                                        continue;
                                }
                                break;