From 9fc3416a95abca28cb992e4607232a3287e847a1 Mon Sep 17 00:00:00 2001
From: Francesco Emanuele D'Agostino <fedagostino@gmail.com>
Date: Sun, 15 Jan 2023 00:46:51 +0100
Subject: introducing protection to prevent multiple target declaration for
 uninstall.

---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2151377..5741400 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,7 @@ set (top_srcdir .)
 configure_file (sigc++.pc.in sigc++-${SIGCXX_API_VERSION}.pc @ONLY)
 configure_file (sigc++-uninstalled.pc.in sigc++-${SIGCXX_API_VERSION}-uninstalled.pc @ONLY)
 
+if (NOT TARGET uninstall)
 configure_file(
 	"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
 	"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
@@ -72,7 +73,7 @@ configure_file(
 
 add_custom_target(uninstall
 	COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
-
+endif()
 
 install (FILES
 			"${CMAKE_CURRENT_BINARY_DIR}/sigc++config.h"
-- 
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