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CMakeLists.txt
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# =======================================================================
# WARNING WARNING WARNING WARNING WARNING WARNING
# =======================================================================
# Remember to put on SAFETY GOGGLES before looking at this file. You
# are most certainly not expected to read or understand any of it.
# =======================================================================
#
# This CMake file is responsible for compiling dependency libraries and
# setting up suitable compiler flags for various platforms. You do not
# need to read or change anything in this file; see CMakeLists.txt in
# the main Nori folder instead.
include(CheckCXXCompilerFlag)
if(NOT IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/openexr/OpenEXR")
message(FATAL_ERROR "The Nori dependencies are missing! "
"You probably did not clone the project with --recursive. It is possible to recover "
"by calling \"git submodule update --init --recursive\"")
endif()
# Set a default build configuration (Release)
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to 'Release' as none was specified.")
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
"MinSizeRel" "RelWithDebInfo")
endif()
string(TOUPPER "${CMAKE_BUILD_TYPE}" U_CMAKE_BUILD_TYPE)
# Enable folders for projects in Visual Studio
if (CMAKE_GENERATOR MATCHES "Visual Studio")
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
endif()
if (APPLE)
set(CMAKE_MACOSX_RPATH ON)
endif()
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
CHECK_CXX_COMPILER_FLAG("-std=c++11" HAS_CPP11_FLAG)
if (HAS_CPP14_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
elseif (HAS_CPP11_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
else()
message(FATAL_ERROR "Unsupported compiler -- Nori requires C++11 support!")
endif()
# Prefer libc++ in conjunction with Clang
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
CHECK_CXX_COMPILER_FLAG("-stdlib=libc++" HAS_LIBCPP)
if (HAS_LIBCPP)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -D_LIBCPP_VERSION")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -stdlib=libc++")
message(STATUS "Nori: using libc++.")
else()
message(WARNING "libc++ is recommended in conjunction with clang. Please insteall the libc++ development headers, provided e.g. by the packages 'libc++-dev' and 'libc++abi-dev' on Debian/Ubuntu.")
endif()
endif()
# Enable link time optimization and set the default symbol
# visibility to hidden (very important to obtain small binaries)
if (NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
# Default symbol visibility
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
endif()
# Disable specific GCC 7 warnings
if (CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations -Wno-misleading-indentation -Wformat-truncation=0 -Wno-int-in-bool-context -Wimplicit-fallthrough=0")
endif()
endif()
# Sanitize build environment for static build with C++11
if (MSVC)
# Disable annoying secure CRT warnings
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D_CRT_SECURE_NO_WARNINGS")
# We'll select the TBB library ourselves
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D__TBB_NO_IMPLICIT_LINKAGE")
# Parallel build on MSVC (all targets)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:SSE2")
# Disable Eigen vectorization for Windows 32 bit builds (issues with unaligned access segfaults)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DEIGEN_DONT_ALIGN")
endif()
# Static build
set(CompilerFlags
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
foreach(CompilerFlag ${CompilerFlags})
string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")
endforeach()
endif()
if (WIN32)
# Build zlib (only on Windows)
set(ZLIB_BUILD_STATIC_LIBS ON CACHE BOOL " " FORCE)
set(ZLIB_BUILD_SHARED_LIBS OFF CACHE BOOL " " FORCE)
add_subdirectory(zlib)
set(ZLIB_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/zlib" CACHE PATH " " FORCE)
if (CMAKE_GENERATOR STREQUAL "Ninja")
set(ZLIB_LIBRARY "${CMAKE_CURRENT_BINARY_DIR}/zlib/zlibstatic.lib" CACHE FILEPATH " " FORCE)
else()
set(ZLIB_LIBRARY "${CMAKE_CURRENT_BINARY_DIR}/zlib/$<CONFIGURATION>/zlibstatic.lib" CACHE FILEPATH " " FORCE)
endif()
set_property(TARGET zlibstatic PROPERTY FOLDER "dependencies")
include_directories(${ZLIB_INCLUDE_DIR} "${CMAKE_CURRENT_BINARY_DIR}/zlib")
endif()
# Build OpenER
set(ILMBASE_BUILD_SHARED_LIBS OFF CACHE BOOL " " FORCE)
set(OPENEXR_BUILD_SHARED_LIBS OFF CACHE BOOL " " FORCE)
set(ILMBASE_NAMESPACE_VERSIONING OFF CACHE BOOL " " FORCE)
set(OPENEXR_NAMESPACE_VERSIONING OFF CACHE BOOL " " FORCE)
add_subdirectory(openexr)
set_property(TARGET IexMath eLut toFloat b44ExpLogTable dwaLookups IlmThread Half Iex Imath IlmImf PROPERTY FOLDER "dependencies")
# Build Thread Building Blocks (main shared libraries only)
set(TBB_BUILD_SHARED OFF CACHE BOOL " " FORCE)
set(TBB_BUILD_STATIC ON CACHE BOOL " " FORCE)
set(TBB_BUILD_TBBMALLOC OFF CACHE BOOL " " FORCE)
set(TBB_BUILD_TBBMALLOC_PROXY OFF CACHE BOOL " " FORCE)
set(TBB_BUILD_TESTS OFF CACHE BOOL " " FORCE)
add_subdirectory(tbb)
set_property(TARGET tbb_static tbb_def_files PROPERTY FOLDER "dependencies")
if (APPLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DGL_SILENCE_DEPRECATION=1")
endif()
# Build NanoGUI
# Use OpenGL backend for UI. In the future, this can be removed to use Metal on MacOS
set(NANOGUI_BACKEND "OpenGL" CACHE BOOL " " FORCE)
set(NANOGUI_BUILD_EXAMPLES OFF CACHE BOOL " " FORCE)
set(NANOGUI_BUILD_SHARED OFF CACHE BOOL " " FORCE)
set(NANOGUI_BUILD_PYTHON OFF CACHE BOOL " " FORCE)
add_subdirectory(nanogui)
set_property(TARGET glfw glfw_objects nanogui PROPERTY FOLDER "dependencies")
# Build the pugixml parser
add_library(pugixml STATIC pugixml/src/pugixml.cpp)
set_property(TARGET pugixml PROPERTY
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/pugixml")
set_property(TARGET pugixml PROPERTY FOLDER "dependencies")
set(OPENEXR_INCLUDE_DIRS
${CMAKE_CURRENT_SOURCE_DIR}/openexr/IlmBase/Imath
${CMAKE_CURRENT_SOURCE_DIR}/openexr/IlmBase/Iex
${CMAKE_CURRENT_SOURCE_DIR}/openexr/IlmBase/Half
${CMAKE_CURRENT_SOURCE_DIR}/openexr/OpenEXR/IlmImf
${CMAKE_CURRENT_BINARY_DIR}/openexr/OpenEXR/config
${CMAKE_CURRENT_BINARY_DIR}/openexr/IlmBase/config)
set(PCG32_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/pcg32)
set(TFM_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/tinyformat)
set(HYPOTHESIS_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/hypothesis)
set(GLFW_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/nanogui/ext/glfw/include)
set(GLEW_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/nanogui/ext/glew/include)
set(NANOVG_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/nanogui/ext/nanovg/src)
set(STB_IMAGE_WRITE_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/nanogui/ext/nanovg/example)
set(NANOGUI_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/nanogui/include)
set(EIGEN_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/eigen)
set(TBB_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/tbb/include)
set(FILESYSTEM_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/filesystem)
set(PUGIXML_INCLUDE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/pugixml/src)
# Compile remainder of the codebase with compiler warnings turned on
if(MSVC)
if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
endif()
elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
# Re-enable disabled warnings
# if(CMAKE_CXX_FLAGS MATCHES "-Wno-[^ ]+")
# string(REGEX REPLACE "-Wno-[^ ]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
# endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-unused-parameter")
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-gnu-anonymous-struct -Wno-c99-extensions -Wno-nested-anon-types -Wno-deprecated-register")
endif()
endif()
set(CompilerFlags
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_RELWITHDEBINFO COMPILE_DEFINITIONS U_CMAKE_BUILD_TYPE
CMAKE_MACOSX_RPATH
OPENEXR_INCLUDE_DIRS PCG32_INCLUDE_DIR TFM_INCLUDE_DIR
HYPOTHESIS_INCLUDE_DIR GLFW_INCLUDE_DIR GLEW_INCLUDE_DIR
NANOVG_INCLUDE_DIR NANOGUI_EXTRA_INCS NANOGUI_EXTRA_DEFS
NANOGUI_EXTRA_LIBS NANOGUI_INCLUDE_DIR EIGEN_INCLUDE_DIR
STB_IMAGE_WRITE_INCLUDE_DIR TBB_INCLUDE_DIR
FILESYSTEM_INCLUDE_DIR PUGIXML_INCLUDE_DIR
)
foreach(CompilerFlag ${CompilerFlags})
set(${CompilerFlag} "${${CompilerFlag}}" PARENT_SCOPE)
endforeach()