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SubjectCompiling with old gcc breaks when CONFIG_RETPOLINE is off
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Just tried 4.20-rc5 on an old K6-2 PC with gcc 5.3.1, got an error about non-retpoline compiler,
turned CONFIG_RETPOLINE off and retried.

To my surprise, compilation still breaks with
arch/x86/Makefile:224: *** You are building kernel with non-retpoline compiler, please update your compiler.. Stop.

As I read the Makefile, it should error only when CONFIG_RETPOLINE is enabled, but it still breaks.

$ grep -r CONFIG_RETPOLINE .config
# CONFIG_RETPOLINE is not set

$ grep -r CONFIG_RETPOLINE include/
include/generated/autoconf.h:#define CONFIG_RETPOLINE 1
include/config/auto.conf:CONFIG_RETPOLINE=y

So the headers have not been updated yet, maybe?

--
Meelis Roos <mroos@linux.ee>

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