Check for the wrong triplet from config.guess and override it with
the --build option on the configure command line. Then i386 assembly
autodetection will work.
These Ubuntu versions (and as of writing, also Debian unstable)
ship config.guess version 2022-01-09 which contains a bug that
was fixed in version 2022-05-08. It results in a wrong configure
triplet when using CC="gcc -m32" to build i386 binaries.
Upstream fix:
https://git.savannah.gnu.org/cgit/config.git/commit/?id=f56a7140386d08a531bcfd444d632b28c61a6329
More information:
https://mail.gnu.org/archive/html/config-patches/2022-05/msg00003.html
(cherry picked from commit 1bf83cded2955282fe1a868f08c83d4e5d6dca4a)
CC from environment is used to initialize CMAKE_C_COMPILER so
setting CMAKE_C_COMPILER explicitly isn't needed.
The syntax in ci_build.bash was broken in case one wished to put
spaces in CC.
(cherry picked from commit 0c1e6d900bac127464fb30a854776e1810ab5f16)
hw.ncpu counts all CPUs including inactive ones. hw.activecpu counts
only the active CPUs.
(cherry picked from commit 97f0ee0f1f903f4e7c4ea23e9b89d687025d2992)
We discussed the name and it's less cognitive load to just call it '.bash'
so you don't have an immediate question about if bashisms are OK.
(cherry picked from commit 73f629e321b74f68c9954728fa4f19261afccf46)
