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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.20)
project(periodic_heat)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_BUILD_TYPE Release)
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -fno-math-errno -ffinite-math-only")
find_package(OpenMP REQUIRED)
find_package(PkgConfig REQUIRED)
find_package(VTK REQUIRED COMPONENTS IOImage IOXML)
# FFTW3 CMake is broken (https://github.com/FFTW/fftw3/issues/130), need pkg-config
pkg_check_modules(FFTW IMPORTED_TARGET REQUIRED fftw3)
# pkg-config is missing the fftw3_threads library
find_library(FFTW_DOUBLE_THREADS_LIB NAMES "fftw3_threads" PATHS ${PKG_FFTW_LIBRARY_DIRS} REQUIRED)
include_directories(PkgConfig::FFTW)
add_executable(solver_sine src/solver_sine.cc)
add_executable(solver_step src/solver_step.cc)
target_link_libraries(solver_sine PRIVATE OpenMP::OpenMP_CXX ${VTK_LIBRARIES} PkgConfig::FFTW)
target_link_libraries(solver_step PRIVATE OpenMP::OpenMP_CXX ${VTK_LIBRARIES} PkgConfig::FFTW ${FFTW_DOUBLE_THREADS_LIB})
vtk_module_autoinit(TARGETS solver_sine solver_step MODULES ${VTK_LIBRARIES})