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authorOleg Verych <olecom@flower.upol.cz>2006-12-10 02:18:40 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-10 09:55:39 -0800
commit15964864c051b31df7d2f9101fe8cc47854a0ab8 (patch)
tree6b1bd3b46dd279c2162827f1f610a272efe01628 /Makefile
parentbf4735a46a6b8dfc1a951f05683e80374d8baa70 (diff)
[PATCH] kbuild: fix-rR-is-now-default
`make -d help | grep Makefile` shows patterns, where make tries to rebuild included and top makefiles. While `make -rR is now default' commit should fix this, actually, it was just a little janitorial. This fix is aimed to complete cancelling implicit rules. Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Oleg Verych <olecom@flower.upol.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile17
1 files changed, 9 insertions, 8 deletions
diff --git a/Makefile b/Makefile
index aef96259051f..73e825b39a08 100644
--- a/Makefile
+++ b/Makefile
@@ -10,8 +10,11 @@ NAME=Avast! A bilge rat!
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.
-# Do not print "Entering directory ..."
-MAKEFLAGS += --no-print-directory
+# Do not:
+# o use make's built-in rules and variables
+# (this increases performance and avoid hard-to-debug behavour);
+# o print "Entering directory ...";
+MAKEFLAGS += -rR --no-print-directory
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
@@ -271,12 +274,8 @@ export quiet Q KBUILD_VERBOSE
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
-# We need some generic definitions
-include $(srctree)/scripts/Kbuild.include
-
-# Do not use make's built-in rules and variables
-# This increases performance and avoid hard-to-debug behavour
-MAKEFLAGS += -rR
+# We need some generic definitions.
+include $(srctree)/scripts/Kbuild.include
# Make variables (CC, etc...)
@@ -1484,6 +1483,8 @@ endif # skip-makefile
PHONY += FORCE
FORCE:
+# Cancel implicit rules on top Makefile, `-rR' will apply to sub-makes.
+Makefile: ;
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable se we can use it in if_changed and friends.

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