From cfe1f1db9eb272bae411761782eff22e67802109 Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Mon, 10 Jun 2019 16:50:58 -0500
Subject: [PATCH] Fix build on FreeBSD 12.0 with stock Clang

`isspace()` is in `ctype.h`.
---
 src/tinyexpr.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tinyexpr.cpp b/src/tinyexpr.cpp
index 73ed61b77..884c30f6e 100644
--- a/src/tinyexpr.cpp
+++ b/src/tinyexpr.cpp
@@ -24,6 +24,7 @@
 
 // This version has been altered and ported to C++ for inclusion in fish.
 #include "tinyexpr.h"
+#include <ctype.h>
 #include <limits.h>
 #include <math.h>
 #include <stdio.h>