cmake_minimum_required(VERSION 2.8.11)
set( CMAKE_VERBOSE_MAKEFILE on )

project(VOXELSKELETON C CXX)

# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc and ui automatically when needed.
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)

#QT5 scripts are not included by default in cmake, so we have to find them manually
SET(QT_MODULE_PATH $ENV{QT_MODULE_PATH})
message(QT_MODULE_PATH ${QT_MODULE_PATH})

# Prepend cmake modules from source directory to the cmake module path
# This way we can overwrite existing modules.
set(CUSTOM_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules")
list(INSERT CMAKE_MODULE_PATH 0 ${CUSTOM_MODULE_PATH}
"${QT_MODULE_PATH}")

#Set subproject paths
SET(VOXELSKELETONLIB_LIBRARY_PATH ${CMAKE_CURRENT_SOURCE_DIR}/SkeletonLib)

include("${CUSTOM_MODULE_PATH}/Prepend.cmake")

#CMAKE doesn't define a default build type
if (NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE "Release")
endif()
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")

#Necessary to circumvent a cmake bug under windows.
if (MSVC)
	set(CMAKE_PREFIX_PATH $ENV{CMAKE_PREFIX_PATH} )
	set(CMAKE_LIBRARY_PATH $ENV{CMAKE_LIBRARY_PATH} )
	set(CMAKE_INCLUDE_PATH $ENV{CMAKE_INCLUDE_PATH} )
	
	MESSAGE(CMAKE_PREFIX_PATH : ${CMAKE_PREFIX_PATH})
	MESSAGE(CMAKE_LIBRARY_PATH : ${CMAKE_LIBRARY_PATH})
	MESSAGE(CMAKE_INCLUDE_PATH : ${CMAKE_INCLUDE_PATH})
endif()

#Setting compiler flags
############

if (MSVC)
  #MSVC compiler flags
  #Mark 32 bit executables large address aware so they can 
  #use > 2GB address space
  IF(CMAKE_SIZEOF_VOID_P MATCHES 4)
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /LARGEADDRESSAWARE")
  ENDIF(CMAKE_SIZEOF_VOID_P MATCHES 4)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /fp:fast")
elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -stdlib=libc++")
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread -Wall -Wno-deprecated-declarations")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -std=gnu++14 -Wall -Wno-deprecated-declarations")

  #fixing both release and debug flags
  set(CMAKE_CXX_FLAGS_DEBUG "-g")
  set(CMAKE_C_FLAGS_DEBUG "-g")

  set(CMAKE_CXX_FLAGS_RELEASE "-march=native  -O3 -ffast-math")
  set(CMAKE_C_FLAGS_RELEASE "-march=native  -O3 -ffast-math")
endif()

#Add OpenMP support, should work on all platforms
find_package(OpenMP)
if(OPENMP_FOUND)
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
endif()

add_subdirectory("SkeletonLib")
add_subdirectory("SkeletonTest")
add_subdirectory("src")
add_subdirectory("doc")


# installing the resource files
if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
  set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}" CACHE PATH "default install path" FORCE )
endif()

install(DIRECTORY ${CMAKE_SOURCE_DIR}/VoxelSkeleton
  DESTINATION .
)