Since 2014, you can't successfully build kernels with GNU Make version
3.80. Example errors:
$ git describe
v4.11
$ make --version | head -1
GNU Make 3.80
$ make defconfig
HOSTCC scripts/basic/fixdep
scripts/Makefile.host:135: *** missing separator. Stop.
make: *** [defconfig] Error 2
$ make ARCH=arm64 help
arch/arm64/Makefile:43: *** unterminated call to function `warning': missing `)'. Stop.
$ make help >/dev/null
./Documentation/Makefile.sphinx:25: Extraneous text after `else' directive
./Documentation/Makefile.sphinx:31: *** only one `else' per conditional. Stop.
make: *** [help] Error 2
The first breakage was introduced by commit
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.. | ||
1.Intro.rst | ||
2.Process.rst | ||
3.Early-stage.rst | ||
4.Coding.rst | ||
5.Posting.rst | ||
6.Followthrough.rst | ||
7.AdvancedTopics.rst | ||
8.Conclusion.rst | ||
adding-syscalls.rst | ||
applying-patches.rst | ||
changes.rst | ||
code-of-conflict.rst | ||
coding-style.rst | ||
conf.py | ||
development-process.rst | ||
email-clients.rst | ||
howto.rst | ||
index.rst | ||
kernel-docs.rst | ||
magic-number.rst | ||
management-style.rst | ||
stable-api-nonsense.rst | ||
stable-kernel-rules.rst | ||
submit-checklist.rst | ||
submitting-drivers.rst | ||
submitting-patches.rst | ||
volatile-considered-harmful.rst |