Summary:
The main CMake file don't have a project() call. In this case, cmake will run a dummy project(Project ) at the very beginning. Even before cmake_minimum_required. And a series of compiler detections will be triggered.
This is problematic if we depends on some policy to be set. E.g. CMP0056. try_compile will fail before we have a chance to do anything.
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D65362
llvm-svn: 367273
# If we are not building as part of LLVM, build LLDB as a standalone project,
# using LLVM as an external library.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+ project(lldb)
include(LLDBStandalone)
endif()
-project(lldb)
-
option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)
find_package(LLVM REQUIRED CONFIG HINTS "${LLVM_DIR}" NO_CMAKE_FIND_ROOT_PATH)