From a3eebf1ba34b940a5a004f4a63b57bc9dc80150d Mon Sep 17 00:00:00 2001
From: Marius Gerbershagen <marius.gerbershagen@gmail.com>
Date: Wed, 26 Feb 2020 19:39:11 +0100
Subject: [PATCH] Revert "ieee-fp: remove _fpreset from si_trap_fpe"

This reverts commit bd9c590810a33d2843467fcefbb4f7d82784b8b6.
Apparently, _fpreset is not just equivalent to feclearexcept and really
needed when doing a longjmp out of a signal handler. On top of that, with
MSVC 2019, I now observe segmentation faults without _fpreset, but not with
_fpreset in si_trap_fpe!
---
 src/c/unixint.d | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/c/unixint.d b/src/c/unixint.d
index db45a92d6..5b1af53e4 100644
--- a/src/c/unixint.d
+++ b/src/c/unixint.d
@@ -1236,6 +1236,9 @@ si_trap_fpe(cl_object condition, cl_object flag)
 # ifdef HAVE_FENV_H
         feclearexcept(all);
 # endif
+# if defined(ECL_MS_WINDOWS_HOST)
+        _fpreset();
+# endif
 # ifdef HAVE_FEENABLEEXCEPT
         fedisableexcept(all & ~bits);
         feenableexcept(all & bits);