X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=build%2FMakefile;h=11c9c6ec622f7ada91842460be81ac2ff46e649b;hb=a594ec4212c0ef4a619a3a3f932b30d0a700b96d;hp=d13bbb70adc7cae05ece1be8d59727d20dc030c5;hpb=7b16772ac5bd3a3e0b5c7c52d96f261be9b22263;p=fs%2Flustre-release.git

diff --git a/build/Makefile b/build/Makefile
index d13bbb7..11c9c6e 100644
--- a/build/Makefile
+++ b/build/Makefile
@@ -1,5 +1,5 @@
 #
-# There are three ways this Makefile can be called:
+# There are four ways this Makefile can be called:
 #
 # 
 # 1.  As a subdirectory from the toplevel, for automake
@@ -10,6 +10,8 @@
 # 3.  At configure time, as the toplevel module dir for building
 #     kernel tests
 #
+# 4.  At configure time, to determine the kernel's idea of $(ARCH)
+#
 
 ifeq ($(PATCHLEVEL),)
 
@@ -22,7 +24,7 @@ else
 
 # case #2
 # Note that this comes from make -C $LINUX -f $LUSTRE/build/Makefile
-# So the include Makefile includes $LINUX/Makefile, not this file
+# so "include Makefile" below includes $LINUX/Makefile, not this file
 include $(LUSTRE_LINUX_CONFIG)
 include Makefile
 
@@ -47,3 +49,8 @@ include $(TOPDIR)/Rules.make
 endif
 
 endif # PATCHLEVEL
+
+# case 4
+
+echoarch:
+	echo $(ARCH) >$(ARCHFILE)