| commit | 04b272336d8f4842d752449427ebef608dfcaca3 | [log] [tgz] |
|---|---|---|
| author | Mark Dickinson <dickinsm@gmail.com> | Sun Jan 04 12:29:36 2009 +0000 |
| committer | Mark Dickinson <dickinsm@gmail.com> | Sun Jan 04 12:29:36 2009 +0000 |
| tree | 52a5448d9c9435d6c1edfba8c0235153a76c18f5 | |
| parent | d81780b8b0de6f0a191335da1ca1a040626bf97e [diff] |
Add autoconf test to detect x87-style double rounding, as described in issue #2937. This information can be helpful for diagnosing platform- specific problems in math and cmath. The result of the test also serves as a fairly reliable indicator of whether the x87 floating-point instructions (as opposed to SSE2) are in use on Intel x86/x86_64 systems.