One minor problem I just discovered with the now-released diffutils 3.8,
a problem that was caused by my recent Gnulib changes, is that building
diffutils on RHEL 8.4 results in diagnostics like the following:
In file included from dirname.c:25:
xalloc.h:133:3: warning: 'malloc (rpl_free)' attribute ignored on
functions declared 'inline' [-Wattributes]
133 | _GL_ATTRIBUTE_ALLOC_SIZE ((1, 2)) _GL_ATTRIBUTE_RETURNS_NONNULL;
| ^~~~~~~~~~~~~~~~~~~~~~~~
These diagnostics are annoying but otherwise harmless. I just now
installed a Gnulib patch to fix this, here:
https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=9b69ffb766a2f6c0a06ad4b71040209534fde094
