Patch CMakeLists to avoid using -pie in the build; it's now pushed back

to the linker on LLVM arches (tools/clang/lib/Driver/Tools.cpp r1.13),
and the combination of -pie -shared there was resulting in libwsutil.so
being mis-linked causing build to fail later.

Drop useless USE_GMAKE while there.

net/wireshark/Makefile

@@ -1,6 +1,4 @@
-# $OpenBSD: Makefile,v 1.54 2017/07/27 09:55:45 sthen Exp $
-
-# XXX should add pledge to dumpcap.
+# $OpenBSD: Makefile,v 1.55 2017/08/22 22:39:38 sthen Exp $
 
 BROKEN-alpha =	.got subsegment exceeds 64K (size 101480)
 BROKEN-sparc64 = cc: Internal error: Illegal instruction (program cc1)
@@ -15,9 +13,7 @@ DISTNAME =	wireshark-${WVER}
 PKGNAME-main =	wireshark-${WVER}
 PKGNAME-gtk =	wireshark-gtk-${WVER}
 PKGNAME-text =	tshark-${WVER}
-REVISION-gtk =	0
-REVISION-main =	0
-REVISION-text =	0
+REVISION =	1
 
 SHARED_LIBS +=	wscodecs             0.0      # 0.0
 SHARED_LIBS +=	wsutil               3.0      # 5.0
@@ -30,8 +26,6 @@ HOMEPAGE =	http://www.wireshark.org/
 
 EXTRACT_SUFX =	.tar.bz2
 
-USE_GMAKE =	Yes
-
 # Mostly GPLv2 or later. Some files are less restrictive.
 # tools/pidl is GPLv3 or later. See COPYING.
 PERMIT_PACKAGE_CDROM =	Yes

net/wireshark/patches/patch-CMakeLists_txt

@@ -0,0 +1,26 @@
+$OpenBSD: patch-CMakeLists_txt,v 1.1 2017/08/22 22:39:38 sthen Exp $
+
+Avoid the broken libwsutil.so that gets generated with -pie -shared
+(probably following tools/clang/lib/Driver/Tools.cpp r1.13 "push back
+-pie to the linker if -pie is specified").
+
+Index: CMakeLists.txt
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -612,11 +612,11 @@ set(WIRESHARK_LD_FLAGS
+ # XXX - are there other compilers that don't support -pie?  It's
+ # not as if the only platforms we support are Windows and Linux....
+ #
+-if(NOT CMAKE_VERSION VERSION_LESS "2.8.9")
+-	set(WIRESHARK_LD_FLAGS ${WIRESHARK_LD_FLAGS}
+-		-pie
+-	)
+-endif()
++#if(NOT CMAKE_VERSION VERSION_LESS "2.8.9")
++#	set(WIRESHARK_LD_FLAGS ${WIRESHARK_LD_FLAGS}
++#		-pie
++#	)
++#endif()
+ 
+ include(CheckCLinkerFlag)
+ set(_C 0)