|author||Paul Smith <firstname.lastname@example.org>||2006-03-05 17:14:10 -0500|
|committer||Sam Ravnborg <email@example.com>||2006-03-06 00:09:51 +0100|
kbuild: change kbuild to not rely on incorrect GNU make behavior
The kbuild system takes advantage of an incorrect behavior in GNU make. Once this behavior is fixed, all files in the kernel rebuild every time, even if nothing has changed. This patch ensures kbuild works with both the incorrect and correct behaviors of GNU make. For more details on the incorrect behavior, see: http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html Changes in this patch: - Keep all targets that are to be marked .PHONY in a variable, PHONY. - Add .PHONY: $(PHONY) to mark them properly. - Remove any $(PHONY) files from the $? list when determining whether targets are up-to-date or not. Signed-off-by: Paul Smith <firstname.lastname@example.org> Signed-off-by: Sam Ravnborg <email@example.com>
Diffstat (limited to 'arch/arm/boot/Makefile')
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index a174d63395e..ec9c400c7f8 100644
@@ -1,6 +1,9 @@
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies.
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
@@ -73,7 +76,7 @@ $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
@echo ' Kernel: $@ is ready'
-.PHONY: initrd FORCE
+PHONY += initrd FORCE
@test "$(INITRD_PHYS)" != "" || \
(echo This machine does not support INITRD; exit -1)