Follow-up Comment #3, sr #110360 (project autoconf):
As of now AC_CANONICAL_HOST, AC_CANONICAL_BUILD and AC_CANONICAL_TARGET expect
pure triplets. The latest config.sub might return a triplet or a quadruplet
(see the header of config.sub). It appears unlikely that a cpu having a dash
can meet the 3/4-plet nomenclature requirements in any way.
Victor, this *evil* hackery might do the job in your case: Add in
configure.ac (right below AC_CANONICAL_HOST)
# override host_cpu in in special case (having dash)
AS_IF([test "x$host_cpu" = 'xcortex_a53'],[host_cpu=cortex-a53])
AC_SUBST([host_cpu])
and smuggle the artificial triplet 'cortex_a53-<vendor>-<os>' (with _vendor_
and _os_ set appropriately) into autoconf like so
./configure --build=cortex_a53-<vendor>-<os>
@Zack: Not sure if AC_CONONICAL_HOST and cousins should be prepared to be
able to digest also quadruplets config.sub might generate?
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