math/xlife++: fix build with GCC-based architectures

PR:		238002
Submitted by:	pkubaj

math/xlife++/Makefile

@@ -15,7 +15,7 @@ LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 BROKEN_aarch64=		fails to compile: BlasUtil.h:63:63: no type named 'ReturnType' in 'Eigen::ScalarBinaryOpTraits<__attribute__
 
-USES=		cmake eigen:3 fortran tar:tbz
+USES=		cmake compiler:c++11-lang eigen:3 fortran tar:tbz
 USE_LDCONFIG=	yes
 
 CMAKE_OFF=	XLIFEPP_ENABLE_ARPACK # should be ON, but it fails to build. Reported to their bugs ML.

math/xlife++/files/patch-src_utils_memoryUtils.cpp

@@ -0,0 +1,12 @@
+--- src/utils/memoryUtils.cpp.orig	2019-05-20 17:06:38 UTC
++++ src/utils/memoryUtils.cpp
+@@ -27,8 +27,8 @@ XLiFE++ is an extended library of finite elements writ
+ #include "utils.h"
+ 
+ #ifdef OS_IS_UNIX
+-#include <sys/sysctl.h>
+ #include <sys/types.h>
++#include <sys/sysctl.h>
+ #include <sys/resource.h>
+ #endif
+