From 2b13de80bf01013b290ffc942841d436861da20c Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Wed, 16 Oct 2019 01:38:21 +0300
Subject: [PATCH] wscript: check if tgmath actually compiles, should fix
 building under freebsd

---
 wscript | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/wscript b/wscript
index c9a2b495..17acda78 100644
--- a/wscript
+++ b/wscript
@@ -233,7 +233,10 @@ def configure(conf):
 
 	# check if we can use C99 tgmath
 	if conf.check_cc(header_name='tgmath.h', mandatory=False):
-		conf.define('HAVE_TGMATH_H', 1)
+		if conf.check_cc(fragment='''#include<tgmath.h>
+				int main(void){ return (int)sin(2.0f); }''',
+			msg='Checking if tgmath.h is usable', mandatory=False):
+			conf.define('HAVE_TGMATH_H', 1)
 
 	conf.env.DEDICATED     = conf.options.DEDICATED
 	# we don't need game launcher on dedicated