CMakeLists.txt

# Copyright 2018, OpenCensus Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

cmake_minimum_required(VERSION 3.5)

# Use ccache if it's present.
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM)
  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE_PROGRAM}")
endif()

project(opencensus-cpp VERSION 0.3.0 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

option(BUILD_SHARED_LIBS "Build shared libraries" OFF)

IF(MSVC)
    add_definitions(-DNOMINMAX)
ENDIF()

if(CMAKE_BUILD_TYPE STREQUAL "Release")
    option(INSTALL_HEADERS "Install header files" ON)
else()
    option(INSTALL_HEADERS "Install header files" OFF)
endif()

list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)

find_package(googletest REQUIRED) 
find_package(abseil REQUIRED)

include(CTest) # Defines option BUILD_TESTING.
enable_testing()

include(OpenCensusHelpers)

# OpenCensus code.
add_subdirectory(opencensus)

# Example code only if testing is enabled.
if(BUILD_TESTING)
  add_subdirectory(examples)
endif()

install(
    EXPORT opencensus-targets
    FILE opencensus-config.cmake
    NAMESPACE opencensus::
    DESTINATION share/opencensus
)