| commit | c54beb85aa855ce2c817d4f7738748841bf6ad30 | |
| author | Paolo Bonzini <bonzini@gnu.org> | |
| Fri, 4 Nov 2016 01:08:28 +0000 (3 20:08 -0500) | ||
| committer | Eric Blake <eblake@redhat.com> | |
| Wed, 21 Dec 2016 14:32:45 +0000 (21 08:32 -0600) | ||
| tree | 2f4938650c3ecf51bc9c0863af095b85f1729def | treesnapshot (tar.gz zip) |
| parent | 0848232967ea70448d3767f22ff2f7d359e67580 | commitdiff |
autoconf: prefer an unrolled loop for trivial AC_CHECK_FUNCS
An unrolled loop avoids the cost of spawning sed in AS_TR_SH and
AS_TR_CPP. Prefer it if there is nothing in the second and third
argument of AC_CHECK_FUNCS and the first argument is a literal.
* lib/autoconf/functions.m4 (AC_CHECK_FUNCS): Unroll loop if safe.
(_AC_CHECK_FUNCS): Move basic implementation here.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Message-Id: <1477933688-4884-2-git-send-email-bonzini@gnu.org>
[eblake: perform AC_CHECK_FUNCS_ONCE changes separately, use
dnl to reduce generated blank lines]
Signed-off-by: Eric Blake <eblake@redhat.com>
An unrolled loop avoids the cost of spawning sed in AS_TR_SH and
AS_TR_CPP. Prefer it if there is nothing in the second and third
argument of AC_CHECK_FUNCS and the first argument is a literal.
* lib/autoconf/functions.m4 (AC_CHECK_FUNCS): Unroll loop if safe.
(_AC_CHECK_FUNCS): Move basic implementation here.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Message-Id: <1477933688-4884-2-git-send-email-bonzini@gnu.org>
[eblake: perform AC_CHECK_FUNCS_ONCE changes separately, use
dnl to reduce generated blank lines]
Signed-off-by: Eric Blake <eblake@redhat.com>
| lib/autoconf/functions.m4 | diffblobblamehistory |