On Dec 20, 2016, at 7:00 AM, Matt Wette <matt.wette@gmail.com> wrote:

On Dec 7, 2016, at 11:55 AM, Andy Wingo <wingo@pobox.com> wrote:

We are pleased to announce GNU Guile release 2.1.5.

Guile 2.1.5 is the fifth pre-release in what will eventually become the
2.2 release series. We encourage you to test this release and provide
feedback to guile-devel@gnu.org.

With the patch below I can get through all the tests on my Mac (macOS 10.12.2) if I use default flags (i.e., -g -O2) and gcc-4.9 (now verifying also w/ gcc-6.2). The patch is a hack to get around an apparent optimization that thinks the sine of -0.0 is +0.0.

Matt

--- libguile/numbers.c-orig     2016-11-21 13:56:23.000000000 -0800

+++ libguile/numbers.c  2016-12-20 14:43:58.000000000 -0800

@@ -9099,6 +9099,9 @@

 #undef FUNC_NAME

SCM

+#ifdef __APPLE__

+__attribute__((optimize("O0")))

+#endif

 scm_c_make_polar (double mag, double ang)

{

   double s, c;