From a4338ca124a8ed3979bae6cc14ee47e79468c7d7 Mon Sep 17 00:00:00 2001
From: Matthew Albrecht <mattparks5855@gmail.com>
Date: Fri, 20 Sep 2019 15:15:11 -0500
Subject: Check for existing uninstall target before creating.

---
 CMakeLists.txt | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 66ac3b0..e198f7c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -357,10 +357,12 @@ if(NOT MSVC)
 		DESTINATION ${CMAKE_INSTALL_LIBDIR})
 endif()
 
-configure_file(
-	"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
-	"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
-	IMMEDIATE @ONLY)
+if(NOT TARGET uninstall)
+	configure_file(
+		"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+		"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+		IMMEDIATE @ONLY)
 
-add_custom_target(uninstall
-	COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+	add_custom_target(uninstall
+		COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+endif()
-- 
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