[PATCH] Common cpuid wrappers, use SYS_cpuid when available
Andreas Schwab
schwab@suse.de
Wed Mar 9 08:17:00 GMT 2016
Piotr Henryk Dabrowski <ultr@ultr.pl> writes:
> +# SYS_cpuid syscall
> +libc_cv_sys_cpuid=no
> +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86 kernel with
> SYS_cpuid support" >&5 +$as_echo_n "checking for x86 kernel with SYS_cpuid
> support... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> +/* end confdefs.h. */
> +
> + #if (defined(__i386__) || defined(__x86_64__)) && defined(__linux__)
> + #include <sys/syscall.h>
You cannot use the host libc to check for features.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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