https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91833
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Kyrylo Tkachov <ktkac...@gcc.gnu.org>: https://gcc.gnu.org/g:c15ff4d0803ffd02fdb9147e82e8881f3620e848 commit r9-8436-gc15ff4d0803ffd02fdb9147e82e8881f3620e848 Author: Kyrylo Tkachov <kyrylo.tkac...@arm.com> Date: Wed Apr 1 12:13:39 2020 +0100 aarch64: Configure for sys/auxv.h in libgcc for lse-init.c 2020-04-01 Kyrylo Tkachov <kyrylo.tkac...@arm.com> Backport from mainline 2019-09-25 Richard Henderson <richard.hender...@linaro.org> PR target/91833 * config/aarch64/lse-init.c: Include auto-target.h. Disable initialization if !HAVE_SYS_AUXV_H. * configure.ac (AC_CHECK_HEADERS): Add sys/auxv.h. * config.in, configure: Rebuild.