devel/py-bullet3: Use system zlib instead of a bundled one to fix SEGV due to a conflict

Reported by:	Henrik Gulbrandsen <henrik@gulbra.net> (via e-mail)

devel/py-bullet3/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	bullet3
 DISTVERSION=	3.08
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 

devel/py-bullet3/files/patch-setup.py

@@ -0,0 +1,35 @@
+- use system zlib because of SEGV: https://github.com/bulletphysics/bullet3/issues/3280
+
+--- setup.py.orig	2021-02-22 06:17:11 UTC
++++ setup.py
+@@ -160,21 +160,6 @@ sources = ["examples/pybullet/pybullet.c"]\
+ +["examples/ThirdPartyLibs/minizip/ioapi.c"]\
+ +["examples/ThirdPartyLibs/minizip/unzip.c"]\
+ +["examples/ThirdPartyLibs/minizip/zip.c"]\
+-+["examples/ThirdPartyLibs/zlib/adler32.c"]\
+-+["examples/ThirdPartyLibs/zlib/compress.c"]\
+-+["examples/ThirdPartyLibs/zlib/crc32.c"]\
+-+["examples/ThirdPartyLibs/zlib/deflate.c"]\
+-+["examples/ThirdPartyLibs/zlib/gzclose.c"]\
+-+["examples/ThirdPartyLibs/zlib/gzlib.c"]\
+-+["examples/ThirdPartyLibs/zlib/gzread.c"]\
+-+["examples/ThirdPartyLibs/zlib/gzwrite.c"]\
+-+["examples/ThirdPartyLibs/zlib/infback.c"]\
+-+["examples/ThirdPartyLibs/zlib/inffast.c"]\
+-+["examples/ThirdPartyLibs/zlib/inflate.c"]\
+-+["examples/ThirdPartyLibs/zlib/inftrees.c"]\
+-+["examples/ThirdPartyLibs/zlib/trees.c"]\
+-+["examples/ThirdPartyLibs/zlib/uncompr.c"]\
+-+["examples/ThirdPartyLibs/zlib/zutil.c"]\
+ +["examples/Importers/ImportColladaDemo/LoadMeshFromCollada.cpp"]\
+ +["examples/Importers/ImportObjDemo/LoadMeshFromObj.cpp"]\
+ +["examples/Importers/ImportObjDemo/Wavefront2GLInstanceGraphicsShape.cpp"]\
+@@ -438,7 +423,7 @@ elif _platform == "darwin":
+   +["examples/OpenGLWindow/MacOpenGLWindowObjC.m"]
+ else:
+   print("bsd!")
+-  libraries = ['GL', 'GLEW', 'pthread']
++  libraries = ['GL', 'GLEW', 'pthread', 'z']
+   os.environ['LDFLAGS'] = '-L/usr/X11R6/lib'
+   CXX_FLAGS += '-D_BSD '
+   CXX_FLAGS += '-I/usr/X11R6/include '