> r266136 broke the ada build on alpha-linux-gnu, filed as PR88191. I didn't > find this patch posted to gcc-patches.
Thanks for the heads up. This is this change: [Ada] Update signal constants for GNU/Linux Add the signal SIGSYS and mark the glibc reserved real-time signals (32-34) as reserved rather than not maskable. 2018-11-14 Patrick Bernardi <berna...@adacore.com> gcc/ada/ * libgnarl/a-intnam__linux.ads: Add SIGSYS. * libgnarl/s-linux__alpha.ads, libgnarl/s-linux__android.ads, libgnarl/s-linux__hppa.ads, libgnarl/s-linux__mips.ads, libgnarl/s-linux__riscv.ads, libgnarl/s-linux__sparc.ads, libgnarl/s-linux__x32.ads: Rename SIGLTHRRES, SIGLTHRCAN and SIGLTHRDBG to SIG32, SIG33 and SIG34 as their names are implementation specific. * libgnarl/s-osinte__linux.ads, libgnarl/s-linux.ads: Add SIGSYS. Move SIG32, SIG33 and SIG34 from the unmasked list to the reserved list. Pat, can you have a look? Matthias, can you suggest a suitable change since we don't have access to an alpha-linux setup?