Set CMP0048 policy before project() to silence warnings (#750)
If this policy isn't set, CMake emits a large warning when project() is
called from a cmake subdirectory.
This came up when the benchmark library was added to the LLVM build, and
it was reported in https://llvm.org/PR38874. This patch was the fix I
applied locally to fix the issue, and I wanted to send it upstream.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 310c7ee..76e5fc5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,7 @@
cmake_minimum_required (VERSION 2.8.12)
-project (benchmark)
-
foreach(p
+ CMP0048 # OK to clear PROJECT_VERSION on project()
CMP0054 # CMake 3.1
CMP0056 # export EXE_LINKER_FLAGS to try_run
CMP0057 # Support no if() IN_LIST operator
@@ -12,6 +11,8 @@
endif()
endforeach()
+project (benchmark)
+
option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." ON)
option(BENCHMARK_ENABLE_EXCEPTIONS "Enable the use of exceptions in the benchmark library." ON)
option(BENCHMARK_ENABLE_LTO "Enable link time optimisation of the benchmark library." OFF)
