From 62a8d400ce448f1ab8557735c65526068783f7be Mon Sep 17 00:00:00 2001
From: Bruce Mitchener <bruce.mitchener@gmail.com>
Date: Thu, 14 Jan 2021 00:52:53 +0700
Subject: [PATCH] Use sig_atomic_t for FP_error when using FP exceptions.
 (#220)

`sig_atomic_t` is usually `int`, but is the typedef that one
should use for flags written to from a signal handler.
---
 inc/medleyfp.h | 3 ++-
 src/timer.c    | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/inc/medleyfp.h b/inc/medleyfp.h
index e2d162f..295e912 100644
--- a/inc/medleyfp.h
+++ b/inc/medleyfp.h
@@ -27,7 +27,8 @@
     --------------------------------------------------  */
 
 #ifdef FLTINT
-volatile extern int  FP_error;
+#include <signal.h>
+extern volatile sig_atomic_t FP_error;
 
 /*  Note that a compiler may very likely move code around the arithmetic
     operation, causing this test (set by an interrupt handler) to be
diff --git a/src/timer.c b/src/timer.c
index d1bdd5a..2592f51 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -644,7 +644,7 @@ void int_unblock() {
 /************************************************************************/
 
 /* The global used to signal floating-point errors */
-volatile int FP_error = 0;
+volatile sig_atomic_t FP_error = 0;
 
 void int_fp_service(int sig, siginfo_t *info, void *context)
 {