lib3ds: fix soname, use safe source.

* enable x86_64.

media-libs/lib3ds/patches/lib3ds-2.0.0.patchset

@@ -1,4 +1,4 @@
-From cb0a0e266f99aab2da7b4ca1897adc28cf94e1af Mon Sep 17 00:00:00 2001
+From 49cbf369797ebc3fc09cfe2e885283d6a9ae0636 Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Adri=C3=A1n=20Arroyo=20Calle?=
  <adrian.arroyocalle@gmail.com>
 Date: Fri, 11 Sep 2015 12:18:29 +0000
@@ -15,5 +15,49 @@ index 37cafd7..133252e 100644
  ADD_SUBDIRECTORY(src)
 -ADD_SUBDIRECTORY(examples)
 -- 
-2.2.2
+2.11.0
+
+
+From 81ea9416307264b04d611a83e27570d3dd54a38e Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Wed, 12 Apr 2017 19:01:56 +0200
+Subject: SONAME should be lib3ds instead of liblib3ds.
+
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 133252e..cf7d16e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,5 +1,5 @@
+ CMAKE_MINIMUM_REQUIRED(VERSION 2.6.2)
+-PROJECT(lib3ds)
++PROJECT(3ds)
+ 
+ SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
+ SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index b8f73db..a3118b5 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -2,7 +2,7 @@ IF(MSVC)
+ 	ADD_DEFINITIONS(-DLIB3DS_EXPORTS)
+ ENDIF(MSVC)
+ 
+-ADD_LIBRARY(lib3ds SHARED
++ADD_LIBRARY(3ds SHARED
+     lib3ds.h
+     lib3ds_impl.h
+     lib3ds_atmosphere.c
+@@ -32,6 +32,6 @@ IF(WIN32)
+         DEBUG_POSTFIX "d")
+ ENDIF(WIN32)
+ 
+-SET_TARGET_PROPERTIES(lib3ds
++SET_TARGET_PROPERTIES(3ds
+     PROPERTIES VERSION 2.0)
+-    
+\ No newline at end of file
++    
+-- 
+2.11.0