* [email protected] <[email protected]> [120309 14:54]:
> Hi,
>
> I am trying to compile a linux-kernel for an embedded system.
> There is an (older) build environment.
> The kernel is based on a 2.4er linux kernel.
> When doing a
> make menuconfig
> I get:
>
> make menuconfig
> Makefile:441: *** mixed implicit and normal rules. Stop.
> [1] 8814 exit 2 make menuconfig
>
> The according part of the makefile is:
>
> include $(srctree)/arch/$(ARCH)/Makefile
> export KBUILD_DEFCONFIG
>
> 441 config %config: scripts_basic outputmakefile FORCE
> $(Q)mkdir -p include/linux
> $(Q)$(MAKE) $(build)=scripts/kconfig $@
> $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
>
>
>
> I marked the according line with its number.
>
> Unfortunately I am not familiar with makefiles...
>
> I am using the make of the gentoo system, which is
> GNU make 3.82...
>
> What is wrong here?
>
> Thank you very much in advance for any help!
> Best regards,
> mcc
>
>
Hi Meino,
Unfortunately GNU Make changed the rules on Makefiles (or decided to
enforce a rule that wasn't previously enforced, I don't know which) and
the kernel Makefiles were caught out by it.
The later kernels have the changes made that are necessary but if you're
building an older kernel with a newer make then you'll run into this
problem.
You can look at newer kernel source to find the changes necessary.
In the case above, the imlicit rule is the %config target and the normal
rule is the config target.
You can just separate those into two separate rules with the same
recipes.
For example:
config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux
$(Q)$(MAKE) $(build)=scripts/kconfig $@
$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
%config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux
$(Q)$(MAKE) $(build)=scripts/kconfig $@
$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
Regards,
Todd
