Recent kernel versions need toolchain in order to properly configure
kernel, for example to set CC_HAS_ASM_GOTO config symbol, so missing
toolchain leads to the following error while running `make
kernel_oldconfig` on ath79 target with 4.19 kernel in the clean tree:
init/Kconfig:17: syntax error
init/Kconfig:16: invalid option
./scripts/clang-version.sh: line 15: mips-openwrt-linux-musl-gcc: command not found
./scripts/gcc-plugin.sh: line 11: mips-openwrt-linux-musl-gcc: command not found
net/sched/Kconfig:44: warning: menuconfig statement without prompt
make[4]: *** [scripts/kconfig/Makefile:69: oldconfig] Error 1
So in order to support this new kernel versions, this patch adds
toolchain as a hard dependency to the kernel_*config targets.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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