kbuild: ignore make's built-in rules & variables

kbuild does explicitly specify what to do in all cases, and each time make's built-in rules & variables has been used it has been a bug. So to speed up things and to avoid the hard-to-debug error situations ignore the built-in definitions. If any part of the kernel uses the built-in definitions the build will just stop there and it should be trivial to fix. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

kbuild: ignore make's built-in rules & variables
kbuild does explicitly specify what to do in all cases, and each time make's built-in rules & variables has been used it has been a bug. So to speed up things and to avoid the hard-to-debug error situations ignore the built-in definitions. If any part of the kernel uses the built-in definitions the build will just stop there and it should be trivial to fix. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Sam Ravnborg
1 parent ff5417107b
Showing 1 changed file with 3 additions and 4 deletions Side-by-side Diff
Makefile
@@ -267,10 +267,9 @@
 # We need some generic definitions
 include  $(srctree)/scripts/Kbuild.include
  
-# For maximum performance (+ possibly random breakage, uncomment
-# the following)
-
-#MAKEFLAGS += -rR
+# Do not use make's built-in rules and variables
+# This increases performance and avoid hard-to-debug behaviour
+MAKEFLAGS += -rR
  
 # Make variables (CC, etc...)
...	...	@@ -267,10 +267,9 @@
267	267	# We need some generic definitions
268	268	include $(srctree)/scripts/Kbuild.include
269	269
270		-# For maximum performance (+ possibly random breakage, uncomment
271		-# the following)
272		-
273		-#MAKEFLAGS += -rR
	270	+# Do not use make's built-in rules and variables
	271	+# This increases performance and avoid hard-to-debug behaviour
	272	+MAKEFLAGS += -rR
274	273
275	274	# Make variables (CC, etc...)
276	275