kbuild: Fix build with binutils <= 2.19
The D option of ar is only available in newer versions.
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 5d145bb..40e082b 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -955,6 +955,11 @@
used when linking modules. This is often a linker script.
From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
+ KBUILD_ARFLAGS Options for $(AR) when creating archives
+
+ $(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
+ mode) if this option is supported by $(AR).
+
--- 6.2 Add prerequisites to archprepare:
The archprepare: rule is used to list prerequisites that need to be
