From ffc4e59bfce83d0377a47c7bf58d5a25907c37b9 Mon Sep 17 00:00:00 2001
From: Jose Luis Blanco Claraco <joseluisblancoc@gmail.com>
Date: Fri, 5 Feb 2021 02:24:40 +0100
Subject: [PATCH] Avoid target collision if gtsam used as submodule

---
 cmake/HandleUninstall.cmake | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/cmake/HandleUninstall.cmake b/cmake/HandleUninstall.cmake
index 1859b0273..dccb1905e 100644
--- a/cmake/HandleUninstall.cmake
+++ b/cmake/HandleUninstall.cmake
@@ -6,5 +6,11 @@ configure_file(
   "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
   IMMEDIATE @ONLY)
 
-add_custom_target(uninstall
-  "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+if (NOT TARGET uninstall) # avoid duplicating this target
+  add_custom_target(uninstall
+    "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+else()
+    add_custom_target(uninstall_gtsam
+      "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+    add_dependencies(uninstall uninstall_gtsam)
+endif()