From 6326a0d5090110c334a3a554bfb10b37a6fe4709 Mon Sep 17 00:00:00 2001 From: Oscar Fuentes Date: Fri, 14 Nov 2008 03:43:18 +0000 Subject: [PATCH] CMake: Disallow in-source builds except when building with the Visual Studio IDE. CMake would overwrite the makefiles distributed with LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59292 91177308-0d34-0410-b5e6-96231b3b80d8 --- CMakeLists.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 15dcf7fa2bf..f3c89f1938f 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -5,6 +5,15 @@ set(PACKAGE_NAME llvm) set(PACKAGE_VERSION svn) set(PACKAGE_BUGREPORT "llvmbugs@cs.uiuc.edu") +if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE ) + message(FATAL_ERROR "In-source builds are not allowed. +CMake would overwrite the makefiles distributed with LLVM. +Please create a directory and run cmake from there, passing the path +to this source directory as the last argument. +This process created the file `CMakeCache.txt' and the directory `CMakeFiles'. +Please delete them.") +endif() + include(FindPerl) set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}) -- 2.34.1