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authorPaul Smith <psmith@gnu.org>2006-03-06 01:14:10 +0300
committerSam Ravnborg <sam@mars.ravnborg.org>2006-03-06 02:09:51 +0300
commit4f1933620f57145212cdbb1ac6ce099eeeb21c5a (patch)
treec083cce1f0acedd92be2ac6eb5e6c49ebd84ac46 /arch/sh
parent7b75b13cda8bd21e8636ea985f76e1ce5bd1a470 (diff)
downloadlinux-4f1933620f57145212cdbb1ac6ce099eeeb21c5a.tar.xz
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 <psmith@gnu.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 08c9515c4806..c72e17a96eed 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -172,7 +172,7 @@ include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/MARKER
archprepare: maketools include/asm-sh/.cpu include/asm-sh/.mach
-.PHONY: maketools FORCE
+PHONY += maketools FORCE
maketools: include/linux/version.h FORCE
$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h