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414f21a6b3
With binpkgs, CFLAGS and LDFLAGS will come from the builder environment and may not be compatible with an old glibc on the system before a new one is merged. In the case reported to me by Kerin, an old glibc was installed w/o DT_RELR support, and LDFLAGS on the binhost builder had -Wl,-z,pack-relative-relocs, so the built test binary (which would run against the system's old glibc) couldn't be executed, meaning the "syscall test" failed. Set CFLAGS to just -O2 and blank LDFLAGS to avoid this. It did also wrongly diagnose the failure because the function both compiles + runs and the error message can't distinguish between those. If we fail to build it, things are likely fine, there's only a problem if we fail to run it. I haven't addressed that here. Bug: https://bugs.gentoo.org/324685 Signed-off-by: Sam James <sam@gentoo.org>