• Ben Gamari's avatar
    configure: Always use AC_LINK_ELSEIF when testing against assembler · 7b090b53
    Ben Gamari authored
    This fixes #16440, where the build system incorrectly concluded that the
    `.subsections_via_symbols` assembler directive was supported on a Linux
    system. This was caused by the fact that gcc was invoked with `-flto`;
    when so-configured gcc does not call the assembler but rather simply
    serialises its AST for compilation during the final link.
    
    This is described in Note [autoconf assembler checks and -flto].
    7b090b53
aclocal.m4 76.6 KB