games/spring: unbreak with boost 1.65

PR:		220762
Submitted by:	Walter Schwarzenfeld <w.schwarzenfeld@utanet.at>
Approved by:	maintainer timeout (3 months)

games/spring/Makefile

@@ -15,7 +15,6 @@ COMMENT=	Project aiming to create a new and versatile RTS Engine
 LICENSE=	GPLv2
 
 BROKEN=		fails to build with boost 1.66, see bug 224124
-BROKEN_FreeBSD_10=	fails to build with boost 1.65, see bug 220762
 
 LIB_DEPENDS=	libfreetype.so:print/freetype2 \
 		libboost_thread.so:devel/boost-libs \

games/spring/files/patch-math

@@ -5,6 +5,16 @@
 +#include <cmath>
  #include <list>
  #include <SDL_events.h>
++++ rts/lib/streflop/SMath.h
+@@ -16,6 +16,8 @@
+ #ifndef STREFLOP_MATH_H
+ #define STREFLOP_MATH_H
+ 
++#include <cmath>
++
+ // just in case, should already be included
+ #include "streflop.h"
+ 
 +++ rts/Sim/Weapons/LaserCannon.cpp	2015-04-07 20:49:52 -0400
 @@ -1,4 +1,6 @@
  /* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */