cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

set(OPENMP_LLVM_TOOLS_DIR "" CACHE PATH "Path to LLVM tools for testing")

add_subdirectory(runtime)

# Currently libomptarget cannot be compiled on Windows or MacOS X.
# Since the device plugins are only supported on Linux anyway,
# there is no point in trying to compile libomptarget on other OSes.
if (NOT (WIN32 OR ${CMAKE_SYSTEM_NAME} MATCHES "Darwin"))
  add_subdirectory(libomptarget)
endif()

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

set(OPENMP_LLVM_TOOLS_DIR "" CACHE PATH "Path to LLVM tools for testing")

add_subdirectory(runtime)


# The tests currently don't pass if the generic ELF plugin is built.
# TODO: Fix the tests and enable libomptarget by default on supported
#       architectures and platforms.
set(ENABLE_LIBOMPTARGET OFF)
# Currently libomptarget cannot be compiled on Windows or MacOS X.
# Since the device plugins are only supported on Linux anyway,
# there is no point in trying to compile libomptarget on other OSes.
if (WIN32 OR ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  set(ENABLE_LIBOMPTARGET OFF)
endif()

option(OPENMP_ENABLE_LIBOMPTARGET "Enable building libomptarget for offloading."
       ${ENABLE_LIBOMPTARGET})
if (OPENMP_ENABLE_LIBOMPTARGET)
  add_subdirectory(libomptarget)
endif()

Disable building libomptarget and add CMake switch
[CMake] Disable building libomptarget and add CMake switch

Introduce OPENMP_ENABLE_LIBOMPTARGET which defaults to OFF at the moment.

libomptarget is not yet ready for prime time:
 - Offloading to NVIDIA GPUs is not completed yet (compiler, device RTL)
 - The generic ELF plugin for offloading to the host (meant for testing)
   uses a single instance of the OpenMP runtime (libomp). That is why
   omp_is_initial_device() returns 1 which makes the tests fail.
Because of these reasons, we want to disable building (and testing!)
for release 5.0.

See https://bugs.llvm.org/show_bug.cgi?id=33859

Differential Revision: https://reviews.llvm.org/D35719

git-svn-id: f99161ee8ccfe2101cbe1bdda2220bce2ed25485@309115 91177308-0d34-0410-b5e6-96231b3b80d8
