Index: head/graphics/nomacs/files/patch-cmake_Unix.cmake
===================================================================
--- head/graphics/nomacs/files/patch-cmake_Unix.cmake	(nonexistent)
+++ head/graphics/nomacs/files/patch-cmake_Unix.cmake	(revision 460286)
@@ -0,0 +1,47 @@
+Sent upstream: https://github.com/nomacs/nomacs/pull/187
+
+From 6617595f409f13f035895f6494a4d8e14047334e Mon Sep 17 00:00:00 2001
+From: Raphael Kubo da Costa <rakuco@FreeBSD.org>
+Date: Mon, 29 Jan 2018 12:01:50 +0100
+Subject: [PATCH] cmake: Stop calling QT5_WRAP_CPP() when building quazip and
+ libqpsd.
+
+cmake/Utils.cmake already sets CMAKE_AUTOMOC to on.
+
+Calling QT5_WRAP_CPP() used to be just redundant, as QUAZIP_MOC_SRC and
+LIBQPSD_MOC_SRC were never actually added as source dependencies in
+MacBuildTarget.cmake and UnixBuildTarget.cmake. In other words, CMake's own
+automoc infrastructure was actually being used and the moc invocations from
+QT5_WRAP_CPP() were not being made at all.
+
+Starting with Qt 5.9.4, calling QT5_WRAP_CPP() disables the AUTOMOC property
+on the macro's input files, which means neither CMake's automoc
+infrastructure not QT5_WRAP_CPP()'s code were being used and we ended up
+with several 'undefined reference to vtable' errors when linking.
+--- cmake/Unix.cmake.orig	2017-03-24 14:47:13 UTC
++++ cmake/Unix.cmake
+@@ -97,7 +97,6 @@ unset(QUAZIP_LIBRARIES CACHE)
+ 
+ unset(QUAZIP_HEADERS CACHE)
+ unset(QUAZIP_SOURCES CACHE)
+-unset(QUAZIP_MOCS CACHE)
+ unset(QT_ROOT CACHE)
+ 
+ if(ENABLE_QUAZIP)
+@@ -116,9 +115,7 @@ if(ENABLE_QUAZIP)
+ 
+     file(GLOB QUAZIP_SOURCES "3rdparty/quazip-0.7/quazip/*.c" "3rdparty/quazip-0.7/quazip/*.cpp")
+     file(GLOB QUAZIP_HEADERS "3rdparty/quazip-0.7/quazip/*.h")
+-    file(GLOB QUAZIP_MOCS "3rdparty/quazip-0.7/quazip/*.h")
+ 
+-    QT5_WRAP_CPP(QUAZIP_MOC_SRC ${QUAZIP_MOCS})
+     add_definitions(-DWITH_QUAZIP)
+   endif(USE_SYSTEM_QUAZIP)
+ endif(ENABLE_QUAZIP)
+@@ -132,6 +129,4 @@ IF(USE_SYSTEM_LIBQPSD)
+ ELSE()
+ 	file(GLOB LIBQPSD_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/libqpsd/*.cpp")
+ 	file(GLOB LIBQPSD_HEADERS "${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/libqpsd/*.h")
+-	file(GLOB LIBQPSD_MOCS "${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/libqpsd/*.h")
+-	QT5_WRAP_CPP(LIBQPSD_MOC_SRC ${LIBQPSD_MOCS})
+ ENDIF(USE_SYSTEM_LIBQPSD)

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