1cmake_minimum_required(VERSION 3.1) 2 3# https://github.com/libigl/libigl/issues/751 4# http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20160425/351643.html 5if(APPLE) 6 if(NOT CMAKE_LIBTOOL) 7 find_program(CMAKE_LIBTOOL NAMES libtool) 8 endif() 9 if(CMAKE_LIBTOOL) 10 set(CMAKE_LIBTOOL ${CMAKE_LIBTOOL} CACHE PATH "libtool executable") 11 message(STATUS "Found libtool - ${CMAKE_LIBTOOL}") 12 get_property(languages GLOBAL PROPERTY ENABLED_LANGUAGES) 13 foreach(lang ${languages}) 14 # Added -c 15 set(CMAKE_${lang}_CREATE_STATIC_LIBRARY 16 "${CMAKE_LIBTOOL} -c -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") 17 endforeach() 18 endif() 19endif() 20 21### Available options ### 22option(LIBIGL_USE_STATIC_LIBRARY "Use libigl as static library" OFF) 23option(LIBIGL_WITH_CGAL "Use CGAL" OFF) 24option(LIBIGL_WITH_COMISO "Use CoMiso" OFF) 25option(LIBIGL_WITH_CORK "Use Cork" OFF) 26option(LIBIGL_WITH_EMBREE "Use Embree" OFF) 27option(LIBIGL_WITH_MATLAB "Use Matlab" OFF) 28option(LIBIGL_WITH_MOSEK "Use MOSEK" OFF) 29option(LIBIGL_WITH_OPENGL "Use OpenGL" OFF) 30option(LIBIGL_WITH_OPENGL_GLFW "Use GLFW" OFF) 31option(LIBIGL_WITH_OPENGL_GLFW_IMGUI "Use ImGui" OFF) 32option(LIBIGL_WITH_PNG "Use PNG" OFF) 33option(LIBIGL_WITH_TETGEN "Use Tetgen" OFF) 34option(LIBIGL_WITH_TRIANGLE "Use Triangle" OFF) 35option(LIBIGL_WITH_PREDICATES "Use exact predicates" OFF) 36option(LIBIGL_WITH_XML "Use XML" OFF) 37option(LIBIGL_WITH_PYTHON "Use Python" OFF) 38option(LIBIGL_WITHOUT_COPYLEFT "Disable Copyleft libraries" OFF) 39option(LIBIGL_EXPORT_TARGETS "Export libigl CMake targets" OFF) 40 41################################################################################ 42 43### Configuration 44set(LIBIGL_ROOT "${CMAKE_CURRENT_LIST_DIR}/..") 45set(LIBIGL_SOURCE_DIR "${LIBIGL_ROOT}/include") 46set(LIBIGL_EXTERNAL "${LIBIGL_ROOT}/external") 47 48# Dependencies are linked as INTERFACE targets unless libigl is compiled as a static library 49if(LIBIGL_USE_STATIC_LIBRARY) 50 set(IGL_SCOPE PUBLIC) 51else() 52 set(IGL_SCOPE INTERFACE) 53endif() 54 55# Download and update 3rdparty libraries 56list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}) 57include(LibiglDownloadExternal) 58 59################################################################################ 60### IGL Common 61################################################################################ 62 63add_library(igl_common INTERFACE) 64target_include_directories(igl_common SYSTEM INTERFACE 65 $<BUILD_INTERFACE:${LIBIGL_SOURCE_DIR}> 66 $<INSTALL_INTERFACE:include> 67) 68# Export igl_common as igl::common 69set_property(TARGET igl_common PROPERTY EXPORT_NAME igl::common) 70if(LIBIGL_USE_STATIC_LIBRARY) 71 target_compile_definitions(igl_common INTERFACE -DIGL_STATIC_LIBRARY) 72endif() 73 74# Transitive C++11 flags 75include(CXXFeatures) 76target_compile_features(igl_common INTERFACE ${CXX11_FEATURES}) 77 78# Other compilation flags 79if(MSVC) 80 # Enable parallel compilation for Visual Studio 81 target_compile_options(igl_common INTERFACE /MP /bigobj) 82 target_compile_definitions(igl_common INTERFACE -DNOMINMAX) 83endif() 84 85### Set compiler flags for building the tests on Windows with Visual Studio 86include(LibiglWindows) 87 88if(BUILD_SHARED_LIBS) 89 # Generate position independent code 90 set_target_properties(igl_common PROPERTIES INTERFACE_POSITION_INDEPENDENT_CODE ON) 91endif() 92 93if(UNIX) 94 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC") 95 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC") 96endif() 97 98# Eigen 99if(TARGET Eigen3::Eigen) 100 # If an imported target already exists, use it 101 target_link_libraries(igl_common INTERFACE Eigen3::Eigen) 102else() 103 igl_download_eigen() 104 target_include_directories(igl_common SYSTEM INTERFACE 105 $<BUILD_INTERFACE:${LIBIGL_EXTERNAL}/eigen> 106 $<INSTALL_INTERFACE:include> 107 ) 108endif() 109 110# C++11 Thread library 111find_package(Threads REQUIRED) 112target_link_libraries(igl_common INTERFACE ${CMAKE_THREAD_LIBS_INIT}) 113 114################################################################################ 115 116## CGAL dependencies on Windows: GMP & MPFR 117function(igl_download_cgal_deps) 118 if(WIN32) 119 igl_download_project(gmp 120 URL https://cgal.geometryfactory.com/CGAL/precompiled_libs/auxiliary/x64/GMP/5.0.1/gmp-all-CGAL-3.9.zip 121 URL_MD5 508c1292319c832609329116a8234c9f 122 ) 123 igl_download_project(mpfr 124 URL https://cgal.geometryfactory.com/CGAL/precompiled_libs/auxiliary/x64/MPFR/3.0.0/mpfr-all-CGAL-3.9.zip 125 URL_MD5 48840454eef0ff18730050c05028734b 126 ) 127 set(ENV{GMP_DIR} "${LIBIGL_EXTERNAL}/gmp") 128 set(ENV{MPFR_DIR} "${LIBIGL_EXTERNAL}/mpfr") 129 endif() 130endfunction() 131 132################################################################################ 133 134function(compile_igl_module module_dir) 135 string(REPLACE "/" "_" module_name "${module_dir}") 136 if(module_name STREQUAL "core") 137 set(module_libname "igl") 138 else() 139 set(module_libname "igl_${module_name}") 140 endif() 141 if(LIBIGL_USE_STATIC_LIBRARY) 142 file(GLOB SOURCES_IGL_${module_name} 143 "${LIBIGL_SOURCE_DIR}/igl/${module_dir}/*.cpp") 144 if(NOT LIBIGL_WITHOUT_COPYLEFT) 145 file(GLOB COPYLEFT_SOURCES_IGL_${module_name} 146 "${LIBIGL_SOURCE_DIR}/igl/copyleft/${module_dir}/*.cpp") 147 list(APPEND SOURCES_IGL_${module_name} ${COPYLEFT_SOURCES_IGL_${module_name}}) 148 endif() 149 add_library(${module_libname} STATIC ${SOURCES_IGL_${module_name}} ${ARGN}) 150 if(MSVC) 151 target_compile_options(${module_libname} PRIVATE /w) # disable all warnings (not ideal but...) 152 else() 153 #target_compile_options(${module_libname} PRIVATE -w) # disable all warnings (not ideal but...) 154 endif() 155 else() 156 add_library(${module_libname} INTERFACE) 157 endif() 158 159 target_link_libraries(${module_libname} ${IGL_SCOPE} igl_common) 160 if(NOT module_name STREQUAL "core") 161 target_link_libraries(${module_libname} ${IGL_SCOPE} igl) 162 endif() 163 164 # Alias target because it looks nicer 165 message(STATUS "Creating target: igl::${module_name} (${module_libname})") 166 add_library(igl::${module_name} ALIAS ${module_libname}) 167 # Export as igl::${module_name} 168 set_property(TARGET ${module_libname} PROPERTY EXPORT_NAME igl::${module_name}) 169endfunction() 170 171################################################################################ 172### IGL Core 173################################################################################ 174 175if(LIBIGL_USE_STATIC_LIBRARY) 176 file(GLOB SOURCES_IGL 177 "${LIBIGL_SOURCE_DIR}/igl/*.cpp" 178 "${LIBIGL_SOURCE_DIR}/igl/copyleft/*.cpp") 179endif() 180compile_igl_module("core" ${SOURCES_IGL}) 181 182################################################################################ 183### Download the python part ### 184if(LIBIGL_WITH_PYTHON) 185 igl_download_pybind11() 186endif() 187 188################################################################################ 189### Compile the CGAL part ### 190if(LIBIGL_WITH_CGAL) 191 # Try to find the CGAL library 192 # CGAL Core is needed for 193 # `Exact_predicates_exact_constructions_kernel_with_sqrt` 194 if(NOT TARGET CGAL::CGAL) 195 set(CGAL_DIR "${LIBIGL_EXTERNAL}/cgal") 196 igl_download_cgal() 197 igl_download_cgal_deps() 198 if(EXISTS ${LIBIGL_EXTERNAL}/boost) 199 set(BOOST_ROOT "${LIBIGL_EXTERNAL}/boost") 200 endif() 201 if(LIBIGL_WITH_PYTHON) 202 option(CGAL_Boost_USE_STATIC_LIBS "Use static Boost libs with CGAL" OFF) 203 else() 204 option(CGAL_Boost_USE_STATIC_LIBS "Use static Boost libs with CGAL" ON) 205 endif() 206 find_package(CGAL CONFIG COMPONENTS Core PATHS ${CGAL_DIR} NO_DEFAULT_PATH) 207 endif() 208 209 # If CGAL has been found, then build the libigl module 210 if(TARGET CGAL::CGAL AND TARGET CGAL::CGAL_Core) 211 compile_igl_module("cgal") 212 target_link_libraries(igl_cgal ${IGL_SCOPE} CGAL::CGAL CGAL::CGAL_Core) 213 else() 214 set(LIBIGL_WITH_CGAL OFF CACHE BOOL "" FORCE) 215 endif() 216endif() 217 218# Helper function for `igl_copy_cgal_dll()` 219function(igl_copy_imported_dll src_target dst_target) 220 get_target_property(other_libs ${src_target} INTERFACE_LINK_LIBRARIES) 221 set(locations) 222 list(APPEND locations ${main_lib} ${other_libs}) 223 foreach(location ${locations}) 224 string(REGEX MATCH "^(.*)\\.[^.]*$" dummy ${location}) 225 set(location "${CMAKE_MATCH_1}.dll") 226 if(EXISTS "${location}" AND location MATCHES "^.*\\.dll$") 227 add_custom_command(TARGET ${dst_target} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${location}" $<TARGET_FILE_DIR:${dst_target}>) 228 endif() 229 endforeach() 230endfunction() 231 232# Convenient functions to copy CGAL dlls into a target (executable) destination folder (for Windows) 233function(igl_copy_cgal_dll target) 234 if(WIN32 AND LIBIGL_WITH_CGAL) 235 igl_copy_imported_dll(CGAL::CGAL ${target}) 236 igl_copy_imported_dll(CGAL::CGAL_Core ${target}) 237 endif() 238endfunction() 239 240################################################################################ 241### Compile the CoMISo part ### 242# NOTE: this cmakefile works only with the 243# comiso available here: https://github.com/libigl/CoMISo 244if(LIBIGL_WITH_COMISO) 245 compile_igl_module("comiso") 246 if(NOT TARGET CoMISo) 247 igl_download_comiso() 248 add_subdirectory("${LIBIGL_EXTERNAL}/CoMISo" CoMISo) 249 endif() 250 target_link_libraries(igl_comiso ${IGL_SCOPE} CoMISo) 251endif() 252 253################################################################################ 254### Compile the cork part ### 255if(LIBIGL_WITH_CORK) 256 set(CORK_DIR "${LIBIGL_EXTERNAL}/cork") 257 if(NOT TARGET cork) 258 # call this "lib-cork" instead of "cork", otherwise cmake gets confused about 259 # "cork" executable 260 igl_download_cork() 261 add_subdirectory("${CORK_DIR}" "lib-cork") 262 endif() 263 compile_igl_module("cork") 264 target_include_directories(igl_cork ${IGL_SCOPE} cork) 265 target_include_directories(igl_cork ${IGL_SCOPE} "${CORK_DIR}/src") 266 target_link_libraries(igl_cork ${IGL_SCOPE} cork) 267endif() 268 269################################################################################ 270### Compile the embree part ### 271if(LIBIGL_WITH_EMBREE) 272 set(EMBREE_DIR "${LIBIGL_EXTERNAL}/embree") 273 274 set(EMBREE_TESTING_INTENSITY 0 CACHE STRING "" FORCE) 275 set(EMBREE_ISPC_SUPPORT OFF CACHE BOOL " " FORCE) 276 set(EMBREE_TASKING_SYSTEM "INTERNAL" CACHE BOOL " " FORCE) 277 set(EMBREE_TUTORIALS OFF CACHE BOOL " " FORCE) 278 set(EMBREE_MAX_ISA "SSE2" CACHE STRING " " FORCE) 279 set(EMBREE_STATIC_LIB ON CACHE BOOL " " FORCE) 280 if(MSVC) 281 set(EMBREE_STATIC_RUNTIME ON CACHE BOOL " " FORCE) 282 endif() 283 284 if(NOT TARGET embree) 285 # TODO: Should probably save/restore the CMAKE_CXX_FLAGS_*, since embree seems to be 286 # overriding them on Windows. But well... it works for now. 287 igl_download_embree() 288 add_subdirectory("${EMBREE_DIR}" "embree") 289 endif() 290 291 compile_igl_module("embree") 292 target_link_libraries(igl_embree ${IGL_SCOPE} embree) 293 target_include_directories(igl_embree ${IGL_SCOPE} ${EMBREE_DIR}/include) 294 target_compile_definitions(igl_embree ${IGL_SCOPE} -DEMBREE_STATIC_LIB) 295endif() 296 297################################################################################ 298### Compile the matlab part ### 299if(LIBIGL_WITH_MATLAB) 300 find_package(Matlab REQUIRED COMPONENTS MEX_COMPILER MX_LIBRARY ENG_LIBRARY MAT_LIBRARY) 301 compile_igl_module("matlab") 302 target_link_libraries(igl_matlab ${IGL_SCOPE} ${Matlab_LIBRARIES}) 303 target_include_directories(igl_matlab ${IGL_SCOPE} ${Matlab_INCLUDE_DIRS}) 304endif() 305 306################################################################################ 307### Compile the mosek part ### 308if(LIBIGL_WITH_MOSEK) 309 find_package(MOSEK REQUIRED) 310 compile_igl_module("mosek") 311 target_link_libraries(igl_mosek ${IGL_SCOPE} ${MOSEK_LIBRARIES}) 312 target_include_directories(igl_mosek ${IGL_SCOPE} ${MOSEK_INCLUDE_DIRS}) 313 target_compile_definitions(igl_mosek ${IGL_SCOPE} -DLIBIGL_WITH_MOSEK) 314endif() 315 316################################################################################ 317### Compile the opengl part ### 318if(LIBIGL_WITH_OPENGL) 319 # OpenGL module 320 compile_igl_module("opengl") 321 322 # OpenGL library 323 if (NOT CMAKE_VERSION VERSION_LESS "3.11") 324 cmake_policy(SET CMP0072 NEW) 325 endif() 326 find_package(OpenGL REQUIRED) 327 if(TARGET OpenGL::GL) 328 target_link_libraries(igl_opengl ${IGL_SCOPE} OpenGL::GL) 329 else() 330 target_link_libraries(igl_opengl ${IGL_SCOPE} ${OPENGL_gl_LIBRARY}) 331 target_include_directories(igl_opengl SYSTEM ${IGL_SCOPE} ${OPENGL_INCLUDE_DIR}) 332 endif() 333 334 # glad module 335 if(NOT TARGET glad) 336 igl_download_glad() 337 add_subdirectory(${LIBIGL_EXTERNAL}/glad glad) 338 endif() 339 target_link_libraries(igl_opengl ${IGL_SCOPE} glad) 340endif() 341 342################################################################################ 343### Compile the GLFW part ### 344if(LIBIGL_WITH_OPENGL_GLFW) 345 if(TARGET igl::opengl) 346 # GLFW module 347 compile_igl_module("opengl/glfw") 348 if(NOT TARGET glfw) 349 set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL " " FORCE) 350 set(GLFW_BUILD_TESTS OFF CACHE BOOL " " FORCE) 351 set(GLFW_BUILD_DOCS OFF CACHE BOOL " " FORCE) 352 set(GLFW_INSTALL OFF CACHE BOOL " " FORCE) 353 igl_download_glfw() 354 add_subdirectory(${LIBIGL_EXTERNAL}/glfw glfw) 355 endif() 356 target_link_libraries(igl_opengl_glfw ${IGL_SCOPE} igl_opengl glfw) 357 endif() 358endif() 359 360################################################################################ 361### Compile the ImGui part ### 362if(LIBIGL_WITH_OPENGL_GLFW_IMGUI) 363 if(TARGET igl::opengl_glfw) 364 # ImGui module 365 compile_igl_module("opengl/glfw/imgui") 366 if(NOT TARGET imgui) 367 igl_download_imgui() 368 add_subdirectory(${LIBIGL_EXTERNAL}/libigl-imgui imgui) 369 endif() 370 target_link_libraries(igl_opengl_glfw_imgui ${IGL_SCOPE} igl_opengl_glfw imgui) 371 endif() 372endif() 373 374################################################################################ 375### Compile the png part ### 376if(LIBIGL_WITH_PNG) 377 # png/ module is anomalous because it also depends on opengl it really should 378 # be moved into the opengl/ directory and namespace ... 379 if(TARGET igl_opengl) 380 if(NOT TARGET stb_image) 381 igl_download_stb() 382 add_subdirectory(${LIBIGL_EXTERNAL}/stb stb_image) 383 endif() 384 compile_igl_module("png" "") 385 target_link_libraries(igl_png ${IGL_SCOPE} igl_stb_image igl_opengl) 386 endif() 387endif() 388 389################################################################################ 390### Compile the tetgen part ### 391if(LIBIGL_WITH_TETGEN) 392 set(TETGEN_DIR "${LIBIGL_EXTERNAL}/tetgen") 393 if(NOT TARGET tetgen) 394 igl_download_tetgen() 395 add_subdirectory("${TETGEN_DIR}" "tetgen") 396 endif() 397 compile_igl_module("tetgen") 398 target_link_libraries(igl_tetgen ${IGL_SCOPE} tetgen) 399 target_include_directories(igl_tetgen ${IGL_SCOPE} ${TETGEN_DIR}) 400endif() 401 402################################################################################ 403### Compile the triangle part ### 404if(LIBIGL_WITH_TRIANGLE) 405 set(TRIANGLE_DIR "${LIBIGL_EXTERNAL}/triangle") 406 if(NOT TARGET triangle) 407 igl_download_triangle() 408 add_subdirectory("${TRIANGLE_DIR}" "triangle") 409 endif() 410 compile_igl_module("triangle") 411 target_link_libraries(igl_triangle ${IGL_SCOPE} triangle) 412 target_include_directories(igl_triangle ${IGL_SCOPE} ${TRIANGLE_DIR}) 413endif() 414 415################################################################################ 416### Compile the predicates part ### 417if(LIBIGL_WITH_PREDICATES) 418 set(PREDICATES_DIR "${LIBIGL_EXTERNAL}/predicates") 419 if(NOT TARGET predicates) 420 igl_download_predicates() 421 add_subdirectory("${PREDICATES_DIR}" "predicates") 422 endif() 423 compile_igl_module("predicates") 424 target_link_libraries(igl_predicates ${IGL_SCOPE} predicates) 425 target_include_directories(igl_predicates ${IGL_SCOPE} ${PREDICATES_DIR}) 426 target_compile_definitions(igl_predicates ${IGL_SCOPE} -DLIBIGL_WITH_PREDICATES) 427endif() 428 429################################################################################ 430### Compile the xml part ### 431if(LIBIGL_WITH_XML) 432 set(TINYXML2_DIR "${LIBIGL_EXTERNAL}/tinyxml2") 433 if(NOT TARGET tinyxml2) 434 igl_download_tinyxml2() 435 add_library(tinyxml2 STATIC ${TINYXML2_DIR}/tinyxml2.cpp ${TINYXML2_DIR}/tinyxml2.h) 436 target_include_directories(tinyxml2 PUBLIC ${TINYXML2_DIR}) 437 set_target_properties(tinyxml2 PROPERTIES 438 COMPILE_DEFINITIONS "TINYXML2_EXPORT" 439 VERSION "3.0.0" 440 SOVERSION "3") 441 endif() 442 compile_igl_module("xml") 443 target_link_libraries(igl_xml ${IGL_SCOPE} tinyxml2) 444 target_include_directories(igl_xml ${IGL_SCOPE} ${TINYXML2_DIR}) 445endif() 446 447################################################################################ 448### Install and export all modules 449 450if(NOT LIBIGL_EXPORT_TARGETS) 451 return() 452endif() 453 454function(install_dir_files dir_name) 455 if (dir_name STREQUAL "core") 456 set(subpath "") 457 else() 458 set(subpath "/${dir_name}") 459 endif() 460 461 file(GLOB public_headers 462 ${CMAKE_CURRENT_SOURCE_DIR}/include/igl${subpath}/*.h 463 ) 464 465 set(files_to_install ${public_headers}) 466 467 if(NOT LIBIGL_USE_STATIC_LIBRARY) 468 file(GLOB public_sources 469 ${CMAKE_CURRENT_SOURCE_DIR}/include/igl${subpath}/*.cpp 470 ${CMAKE_CURRENT_SOURCE_DIR}/include/igl${subpath}/*.c 471 ) 472 endif() 473 list(APPEND files_to_install ${public_sources}) 474 475 install( 476 FILES ${files_to_install} 477 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/igl${subpath} 478 ) 479endfunction() 480 481################################################################################ 482 483include(GNUInstallDirs) 484include(CMakePackageConfigHelpers) 485 486# Install and export core library 487install( 488 TARGETS 489 igl 490 igl_common 491 EXPORT igl-export 492 PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} 493 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} 494 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} 495 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} 496) 497export( 498 TARGETS 499 igl 500 igl_common 501 FILE libigl-export.cmake 502) 503 504# Install headers for core library 505install_dir_files(core) 506install_dir_files(copyleft) 507 508# Write package configuration file 509configure_package_config_file( 510 ${CMAKE_CURRENT_LIST_DIR}/libigl-config.cmake.in 511 ${CMAKE_BINARY_DIR}/libigl-config.cmake 512 INSTALL_DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/libigl/cmake 513) 514install( 515 FILES 516 ${CMAKE_BINARY_DIR}/libigl-config.cmake 517 DESTINATION 518 ${CMAKE_INSTALL_DATADIR}/libigl/cmake 519) 520 521# Write export file 522export(EXPORT igl-export 523 FILE "${CMAKE_BINARY_DIR}/libigl-export.cmake" 524) 525install(EXPORT igl-export DESTINATION ${CMAKE_INSTALL_DATADIR}/libigl/cmake FILE libigl-export.cmake) 526 527 528export(PACKAGE libigl) 529 530