Index: multimedia/assimp/Makefile
===================================================================
--- multimedia/assimp/Makefile
+++ multimedia/assimp/Makefile
@@ -2,7 +2,7 @@
 
 PORTNAME=	assimp
 DISTVERSIONPREFIX=	v
-DISTVERSION=	4.0.1
+DISTVERSION=	4.1.0
 CATEGORIES=	multimedia
 
 MAINTAINER=	yuri@FreeBSD.org
@@ -19,16 +19,11 @@
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
-# CMAKE_ARGS instructs cmake to skip runtime path removal during install
-CMAKE_ARGS+=	-DCMAKE_SKIP_RPATH:BOOL=ON -DASSIMP_BUILD_TESTS:BOOL=OFF
+CMAKE_OFF=	ASSIMP_BUILD_TESTS
 
-PLIST_SUB=	SHLIB_VER=${DISTVERSION}
+PLIST_SUB=	SHL3=${DISTVERSION} VER2=${DISTVERSION:R} SHL1=${DISTVERSION:R:R}
 
-.include <bsd.port.pre.mk>
+post-install: # rm the third-party lib installed by mistake: https://github.com/assimp/assimp/issues/1650
+	@${RM} ${STAGEDIR}${PREFIX}/lib/libIrrXML.a
 
-.if ${CHOSEN_COMPILER_TYPE} == gcc
-# GCC C++11 support is broken on FreeBSD (see PR 193528 for details)
-CXXFLAGS+=	-D_GLIBCXX_USE_C99
-.endif
-
-.include <bsd.port.post.mk>
+.include <bsd.port.mk>
Index: multimedia/assimp/distinfo
===================================================================
--- multimedia/assimp/distinfo
+++ multimedia/assimp/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1509810769
-SHA256 (assimp-assimp-v4.0.1_GH0.tar.gz) = 60080d8ab4daaab309f65b3cffd99f19eb1af8d05623fff469b9b652818e286e
-SIZE (assimp-assimp-v4.0.1_GH0.tar.gz) = 44625148
+TIMESTAMP = 1513844771
+SHA256 (assimp-assimp-v4.1.0_GH0.tar.gz) = 3520b1e9793b93a2ca3b797199e16f40d61762617e072f2d525fad70f9678a71
+SIZE (assimp-assimp-v4.1.0_GH0.tar.gz) = 45417293
Index: multimedia/assimp/files/patch-code_D3MFOpcPackage.cpp
===================================================================
--- multimedia/assimp/files/patch-code_D3MFOpcPackage.cpp
+++ multimedia/assimp/files/patch-code_D3MFOpcPackage.cpp
@@ -1,11 +1,10 @@
---- code/D3MFOpcPackage.cpp.orig	2017-07-18 17:03:26 UTC
+--- code/D3MFOpcPackage.cpp.orig	2017-12-11 13:22:45 UTC
 +++ code/D3MFOpcPackage.cpp
-@@ -55,6 +55,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY O
+@@ -55,6 +55,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ #include <map>
  #include <algorithm>
  #include <cassert>
- 
 +#include <stdlib.h>
-+
  #include <contrib/unzip/unzip.h>
+ #include "3MFXmlTags.h"
  
- namespace Assimp {
Index: multimedia/assimp/files/patch-code_Q3BSPZipArchive.cpp
===================================================================
--- /dev/null
+++ multimedia/assimp/files/patch-code_Q3BSPZipArchive.cpp
@@ -0,0 +1,10 @@
+--- code/Q3BSPZipArchive.cpp.orig	2018-02-07 19:36:57 UTC
++++ code/Q3BSPZipArchive.cpp
+@@ -43,6 +43,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ 
+ #include "Q3BSPZipArchive.h"
+ #include <cassert>
++#include <stdlib.h>
+ #include <assimp/ai_assert.h>
+ 
+ namespace Assimp {
Index: multimedia/assimp/pkg-plist
===================================================================
--- multimedia/assimp/pkg-plist
+++ multimedia/assimp/pkg-plist
@@ -5,6 +5,7 @@
 include/assimp/DefaultIOStream.h
 include/assimp/DefaultIOSystem.h
 include/assimp/DefaultLogger.hpp
+include/assimp/Defines.h
 include/assimp/Exporter.hpp
 include/assimp/IOStream.hpp
 include/assimp/IOSystem.hpp
@@ -45,9 +46,9 @@
 include/assimp/vector3.h
 include/assimp/vector3.inl
 include/assimp/version.h
-lib/cmake/assimp-4.0/assimp-config-version.cmake
-lib/cmake/assimp-4.0/assimp-config.cmake
+lib/cmake/assimp-%%VER2%%/assimp-config-version.cmake
+lib/cmake/assimp-%%VER2%%/assimp-config.cmake
 lib/libassimp.so
-lib/libassimp.so.4
-lib/libassimp.so.%%SHLIB_VER%%
+lib/libassimp.so.%%SHL1%%
+lib/libassimp.so.%%SHL3%%
 libdata/pkgconfig/assimp.pc