diff options
| -rw-r--r-- | CMakeLists.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 15dcf7fa2b..f3c89f1938 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}) |