From 2b790e1b5acad827da04391baf812f4c3e8002de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Janiszewski?= <janisozaur@gmail.com>
Date: Sun, 27 Mar 2016 23:29:45 +0200
Subject: [PATCH] Add guard to prevent from building in-source

---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6fd2bdbabf..fdda8c70c4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,10 @@ set (ORCT2_RESOURCE_DIR ${CMAKE_INSTALL_PREFIX}/share/${PROJECT}/)
 
 project(${PROJECT})
 
+if (CMAKE_BINARY_DIR STREQUAL CMAKE_SOURCE_DIR)
+	message(FATAL_ERROR "Building in-source is not supported! Create a build dir and remove ${CMAKE_SOURCE_DIR}/CMakeCache.txt")
+endif()
+
 add_definitions(-DORCT2_RESOURCE_DIR="${ORCT2_RESOURCE_DIR}")
 add_definitions(-DHAVE_CONFIG_H)
 add_definitions(-DCURL_STATICLIB)