Hi Mark, On Thu, Nov 21, 2024 at 6:34 PM Mark Wielaard <m...@klomp.org> wrote: > > We were using a somewhat odd mix of gnu99 with a fallback atomics.h so > we could build with gcc 4.7. Lets requires a compiler that can do at > least C11 and has a stdatomic.h. So we can build against any C > standard >= C11 (including C17 and C23). That means GCC 4.9+. > GCC 4.9 was released in 2014. > > The lowest compiler version we check in the buildbots is currently > GCC 8.3.0 (Debian old old stable, released in 2018). > > Also update the minimum autoconf version to 2.69. We would really like > 2.70+ so we don't need the gnulib gnu11.m4. But 2.69 still seems in > use on various stable systems. autoconf 2.70 was released end of 2020, > autoconf 2.69 in 2012. > > * configure.ac (AC_PACKAGE_URL): Removed workaround for > autoconf < 2.64. > (AC_PREREQ): Update from 2.63 to 2.69. > (AC_PROG_CC): Test for ac_cv_prog_cc_c11. > (AC_CACHE_CHECK for stdatomic.h > * config/eu.am (AM_CFLAGS): Remove -std=gnu99. > * lib/Makefile.am (noinst_HEADERS): Remove atomics.h and > stdatomic-fbsd.h. > * lib/atomics.h: Removed. > * lib/stdatomic-fbsd.h: Removed. > * lib/dynamicsizehash_concurrent.h: Include stdatomic.h. > * libdw/libdw_alloc.c: Likewise. > * m4/.gitignore: Add !/std-gnu11.m4. > * m4/std-gnu11.m4: New file from gnulib to provide AC_PROG_CC > from autoconf 2.70. > > Signed-off-by: Mark Wielaard <m...@klomp.org>
LGTM. Aaron
