From 533ea14136b54564c003033c740076c602ef25d1 Mon Sep 17 00:00:00 2001
From: Andrew Janke <andrew@apjanke.net>
Date: Wed, 14 Feb 2018 01:45:47 -0500
Subject: [PATCH] =?UTF-8?q?Pull=20in=20FindUUID.cmake=20from=20FreeRDP,=20?=
 =?UTF-8?q?to=20avoid=20detecting=20uuid.h=20under=20/System/=E2=80=A6/Ker?=
 =?UTF-8?q?nel.framework=20on=20macOS?=
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This fixes a build problem due to apparent bad `sys/ucontext.h` headers in Kernel.framework.
---
 modules/FindUUID.cmake | 130 ++++++++++++++++++++++++++++++++++++-----
 1 file changed, 114 insertions(+), 16 deletions(-)

diff --git a/modules/FindUUID.cmake b/modules/FindUUID.cmake
index a71cf69f4..43846f6a1 100644
--- a/modules/FindUUID.cmake
+++ b/modules/FindUUID.cmake
@@ -1,21 +1,119 @@
-# Base Io build system
-# Written by Jeremy Tregunna <jeremy.tregunna@me.com>
+# - Try to find UUID
+# Once done this will define
 #
-# Find libuuid
+# UUID_FOUND - system has UUID
+# UUID_INCLUDE_DIRS - the UUID include directory
+# UUID_LIBRARIES - Link these to use UUID
+# UUID_DEFINITIONS - Compiler switches required for using UUID
+#
+# Copyright (c) 2006 Andreas Schneider <mail@cynapses.org>
+#
+# Redistribution and use is allowed according to the terms of the New
+# BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (UUID_LIBRARIES AND UUID_INCLUDE_DIRS)
+	# in cache already
+	set(UUID_FOUND TRUE)
+else (UUID_LIBRARIES AND UUID_INCLUDE_DIRS)
+	find_path(UUID_INCLUDE_DIR
+		NAMES
+			uuid.h
+		PATH_SUFFIXES
+			uuid
+		HINTS
+			${UUID_DIR}/include
+			$ENV{UUID_DIR}/include
+			$ENV{UUID_DIR}
+			${DELTA3D_EXT_DIR}/inc
+			$ENV{DELTA_ROOT}/ext/inc
+			$ENV{DELTA_ROOT}
+		PATHS
+			~/Library/Frameworks
+			/Library/Frameworks
+			/usr/local/include
+			/usr/include
+			/usr/include/gdal
+			/sw/include # Fink
+			/opt/local/include # DarwinPorts
+			/opt/csw/include # Blastwave
+			/opt/include
+			[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/include
+			/usr/freeware/include
+	)
+
+	find_library(UUID_LIBRARY
+		NAMES
+			uuid ossp-uuid
+		HINTS
+			${UUID_DIR}/lib
+			$ENV{UUID_DIR}/lib
+			$ENV{UUID_DIR}
+			${DELTA3D_EXT_DIR}/lib
+			$ENV{DELTA_ROOT}/ext/lib
+			$ENV{DELTA_ROOT}
+			$ENV{OSG_ROOT}/lib
+		PATHS
+			~/Library/Frameworks
+			/Library/Frameworks
+			/usr/local/lib
+			/usr/lib
+			/sw/lib
+			/opt/local/lib
+			/opt/csw/lib
+			/opt/lib
+			/usr/freeware/lib64
+	)
+
+	find_library(UUID_LIBRARY_DEBUG
+		NAMES
+			uuidd 
+		HINTS
+			${UUID_DIR}/lib
+			$ENV{UUID_DIR}/lib
+			$ENV{UUID_DIR}
+			${DELTA3D_EXT_DIR}/lib
+			$ENV{DELTA_ROOT}/ext/lib
+			$ENV{DELTA_ROOT}
+			$ENV{OSG_ROOT}/lib
+		PATHS
+			~/Library/Frameworks
+			/Library/Frameworks
+			/usr/local/lib
+			/usr/lib
+			/sw/lib
+			/opt/local/lib
+			/opt/csw/lib
+			/opt/lib
+			/usr/freeware/lib64
+	)
+	
+	if (NOT UUID_LIBRARY AND BSD)
+		set(UUID_LIBRARY "")
+	endif(NOT UUID_LIBRARY AND BSD)
+
+	set(UUID_INCLUDE_DIRS ${UUID_INCLUDE_DIR})
+	set(UUID_LIBRARIES ${UUID_LIBRARY})
 
-FIND_PATH(UUID_INCLUDE_DIR uuid/uuid.h)
-FIND_LIBRARY(UUID_LIBRARY NAMES uuid PATH)
+	if (UUID_INCLUDE_DIRS)
+		if (BSD OR UUID_LIBRARIES)
+			set(UUID_FOUND TRUE)
+		endif (BSD OR UUID_LIBRARIES)
+	endif (UUID_INCLUDE_DIRS)
 
-IF(NOT UUID_LIBRARY)
-	SET(UUID_LIBRARY "")
-ENDIF(NOT UUID_LIBRARY)
+	if (UUID_FOUND)
+		if (NOT UUID_FIND_QUIETLY)
+			message(STATUS "Found UUID: ${UUID_LIBRARIES}")
+		endif (NOT UUID_FIND_QUIETLY)
+	else (UUID_FOUND)
+		if (UUID_FIND_REQUIRED)
+			message(FATAL_ERROR "Could not find UUID")
+		endif (UUID_FIND_REQUIRED)
+	endif (UUID_FOUND)
 
-IF(UUID_INCLUDE_DIR)
-	SET(UUID_FOUND TRUE)
-ENDIF(UUID_INCLUDE_DIR)
+	# show the UUID_INCLUDE_DIRS and UUID_LIBRARIES variables only in the advanced view
+	mark_as_advanced(UUID_INCLUDE_DIRS UUID_LIBRARIES)
 
-IF(NOT UUID_FOUND)
-	IF(UUID_FIND_REQUIRED)
-		MESSAGE(FATAL_ERROR "Could not find UUID")
-	ENDIF(UUID_FIND_REQUIRED)
-ENDIF(NOT UUID_FOUND)
+endif (UUID_LIBRARIES AND UUID_INCLUDE_DIRS)
\ No newline at end of file