From 572c9921d4eae8314878aba98bbc58d41c89a6bc Mon Sep 17 00:00:00 2001
From: Paolo Monteverde <paolo.monteverde@gmail.com>
Date: Mon, 24 Jan 2022 16:48:43 +0100
Subject: [PATCH] Fixes PreventInSourceBuilds.cmake to work with
 add_subdirectory

---
 include/PreventInSourceBuilds.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/PreventInSourceBuilds.cmake b/include/PreventInSourceBuilds.cmake
index 7ddda54..be5d0dd 100644
--- a/include/PreventInSourceBuilds.cmake
+++ b/include/PreventInSourceBuilds.cmake
@@ -2,8 +2,8 @@
 # This function will prevent in-source builds
 function(AssureOutOfSourceBuilds)
   # make sure the user doesn't play dirty with symlinks
-  get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
-  get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
+  get_filename_component(srcdir "${CMAKE_CURRENT_SOURCE_DIR}" REALPATH)
+  get_filename_component(bindir "${CMAKE_CURRENT_BINARY_DIR}" REALPATH)
 
   # disallow in-source builds
   if("${srcdir}" STREQUAL "${bindir}")