From 17717859ac2d8b1e194615fa46e66d57f6d1dfd5 Mon Sep 17 00:00:00 2001
From: Tessil <tessil@gmx.com>
Date: Fri, 2 Dec 2022 10:20:42 +0000
Subject: [PATCH] Disable CMake install rule if robin_map is used as subproject

---
 CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b964dc4..b837b08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,8 +28,13 @@ endif()
 
 
 
+set(IS_SUBPROJECT TRUE)
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+  set(IS_SUBPROJECT FALSE)
+endif()
+
 # Installation (only compatible with CMake version >= 3.3)
-if(${CMAKE_VERSION} VERSION_GREATER "3.2")
+if(NOT IS_SUBPROJECT AND ${CMAKE_VERSION} VERSION_GREATER "3.2")
     include(CMakePackageConfigHelpers)
 
     ## Install include directory and potential natvis file