From 53eddb881cd3252035b87540d562775dfb93f207 Mon Sep 17 00:00:00 2001
From: John Szakmeister <john@szakmeister.net>
Date: Tue, 11 Oct 2016 18:35:02 -0400
Subject: build: prevent in-tree builds for the time being, as it's not
 supported

---
 cmake/PreventInTreeBuilds.cmake | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 cmake/PreventInTreeBuilds.cmake

(limited to 'cmake/PreventInTreeBuilds.cmake')

diff --git a/cmake/PreventInTreeBuilds.cmake b/cmake/PreventInTreeBuilds.cmake
new file mode 100644
index 0000000000..9c0ce1c0a2
--- /dev/null
+++ b/cmake/PreventInTreeBuilds.cmake
@@ -0,0 +1,23 @@
+function(PreventInTreeBuilds)
+  get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
+  get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
+
+  if("${srcdir}" STREQUAL "${bindir}")
+    message("")
+    message("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
+    message("Neovim doesn't support in-tree builds.  It's recommended that you")
+    message("use a build/ subdirectory:")
+    message("    mkdir build")
+    message("    cd build")
+    message("    cmake <OPTIONS> ..")
+    message("")
+    message("Make sure to cleanup some CMake artifacts from this failed build")
+    message("with:")
+    message("    rm -rf CMakeFiles CMakeCache.txt")
+    message("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
+    message("")
+    message(FATAL_ERROR "Stopping build.")
+  endif()
+endfunction()
+
+PreventInTreeBuilds()
-- 
cgit