[2/8] kbuild: fix make incompatibility

From: Greg KH
Date: Tue Aug 24 2010 - 18:49:03 EST


2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------
Content-Length: 1668
Lines: 58

From: Sam Ravnborg <sam@xxxxxxxxxxxx>

commit 31110ebbec8688c6e9597b641101afc94e1c762a upstream.

"Paul Smith" <psmith@xxxxxxx> reported that we would fail
to build with a new check that may be enabled in an
upcoming version of make.

The error was:

Makefile:442: *** mixed implicit and normal rules. Stop.

The problem is that we did stuff like this:

config %config: ...

The solution was simple - the above was split into two with identical
prerequisites and commands.
With only three lines it was not worth to try to avoid the duplication.

Cc: "Paul Smith" <psmith@xxxxxxx>
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Thomas Backlund <tmb@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
Makefile | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

--- a/Makefile
+++ b/Makefile
@@ -440,7 +440,11 @@ ifeq ($(config-targets),1)
include $(srctree)/arch/$(SRCARCH)/Makefile
export KBUILD_DEFCONFIG

-config %config: scripts_basic outputmakefile FORCE
+config: scripts_basic outputmakefile FORCE
+ $(Q)mkdir -p include/linux include/config
+ $(Q)$(MAKE) $(build)=scripts/kconfig $@
+
+%config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux include/config
$(Q)$(MAKE) $(build)=scripts/kconfig $@

@@ -1602,7 +1606,11 @@ endif
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)

# Modules
-/ %/: prepare scripts FORCE
+/: prepare scripts FORCE
+ $(cmd_crmodverdir)
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(build-dir)
+%/: prepare scripts FORCE
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)


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