From 39b4a8e67e5804265340a9c2ffd85afe8c7114eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Guilloux?= <glx22@users.noreply.github.com>
Date: Tue, 6 Apr 2021 13:54:27 +0200
Subject: [PATCH] Change: [CMake] Improve 'In-source build' error message
 (#8955)

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 17ed2df8c7..63a0ce2fe8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ endif()
 project(${BINARY_NAME})
 
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
-    message(FATAL_ERROR "In-source builds not allowed. Please run \"cmake ..\" from the bin directory")
+    message(FATAL_ERROR "In-source builds not allowed. Please run \"cmake ..\" from the build directory. You may need to delete \"${CMAKE_SOURCE_DIR}/CMakeCache.txt\" first.")
 endif()
 
 # Debug mode by default.