在亚马逊 Linux 上“cmake”到 libigl 时找不到 libigl

Question

我尝试安装 libigl。虽然在this tutorial 中说不需要安装，但我的程序没有找到库。

在我的 Ubuntu 本地机器上，cmake 工作正常！

但在 Amazon Linux 中，EC2 实例无法正常工作。

我编译我的项目：

cmake3 .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH=~/out

错误是：

CMake Error at CMakeLists.txt:21 (message):
  libigl not found --- You can download it using:

   git clone --recursive https://github.com/libigl/libigl.git /home/ec2-user/closer-lambda/../libigl

closer-lamba 是我的 c++ 项目的文件夹

我尝试使用 git clone，并将粘贴库从我在 Ubuntu 中的原始项目复制到 Amazon Linux（复制到文件夹项目、ec2-user 文件夹等），但总是收到相同的错误。

我的 CMakeLists.txt ：

cmake_minimum_required(VERSION 3.5)

include_directories(includes)


set(CMAKE_CXX_STANDARD 11)
project(closer LANGUAGES CXX)

find_package(aws-lambda-runtime REQUIRED)
find_package(AWSSDK COMPONENTS s3)

#LIBIGL

#LIBIGL
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

find_package(LIBIGL QUIET)

if (NOT LIBIGL_FOUND)
    message(FATAL_ERROR "libigl not found --- You can download it using: \n git clone --recursive https://github.com/libigl/libigl.git ${PROJECT_SOURCE_DIR}/../libigl")
endif()

# Compilation flags: adapt to your needs
if(MSVC)
    # Enable parallel compilation
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /bigobj")
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR} )
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR} )
else()
    # Libigl requires a modern C++ compiler that supports c++11
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "." )
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations")
endif()



# libigl options: choose between header only and compiled static library
# Header-only is preferred for small projects. For larger projects the static build
# considerably reduces the compilation times
option(LIBIGL_USE_STATIC_LIBRARY "Use LibIGL as static library" OFF)

# add a customizable menu bar
option(LIBIGL_WITH_NANOGUI     "Use Nanogui menu"   OFF)

# libigl options: choose your dependencies (by default everything is OFF except opengl)
option(LIBIGL_WITH_VIEWER      "Use OpenGL viewer"  OFF)
option(LIBIGL_WITH_OPENGL      "Use OpenGL"         ON)
option(LIBIGL_WITH_OPENGL_GLFW "Use GLFW"           ON)
option(LIBIGL_WITH_BBW         "Use BBW"            OFF)
option(LIBIGL_WITH_EMBREE      "Use Embree"         OFF)
option(LIBIGL_WITH_PNG         "Use PNG"            OFF)
option(LIBIGL_WITH_TETGEN      "Use Tetgen"         OFF)
option(LIBIGL_WITH_TRIANGLE    "Use Triangle"       ON)
option(LIBIGL_WITH_XML         "Use XML"            OFF)
option(LIBIGL_WITH_LIM         "Use LIM"            OFF)
option(LIBIGL_WITH_COMISO      "Use CoMiso"         OFF)
option(LIBIGL_WITH_MATLAB      "Use Matlab"         OFF) # This option is not supported yet
option(LIBIGL_WITH_MOSEK       "Use MOSEK"          OFF) # This option is not supported yet
option(LIBIGL_WITH_CGAL        "Use CGAL"           OFF)
if(LIBIGL_WITH_CGAL) # Do not remove or move this block, the cgal build system fails without it
    find_package(CGAL REQUIRED)
    set(CGAL_DONT_OVERRIDE_CMAKE_FLAGS TRUE CACHE BOOL "CGAL's CMAKE Setup is super annoying ")
    include(${CGAL_USE_FILE})
endif()

# Adding libigl: choose the path to your local copy libigl
# This is going to compile everything you requested
#message(FATAL_ERROR "${PROJECT_SOURCE_DIR}/../libigl/cmake")
add_subdirectory("${LIBIGL_INCLUDE_DIR}/../shared/cmake" "libigl")

# libigl information
message("libigl includes: ${LIBIGL_INCLUDE_DIRS}")
message("libigl libraries: ${LIBIGL_LIBRARIES}")
message("libigl extra sources: ${LIBIGL_EXTRA_SOURCES}")
message("libigl extra libraries: ${LIBIGL_EXTRA_LIBRARIES}")
message("libigl definitions: ${LIBIGL_DEFINITIONS}")

#END LIBIGL


# Prepare the build environment
include_directories(${LIBIGL_INCLUDE_DIRS})
add_definitions(${LIBIGL_DEFINITIONS})
add_executable(${PROJECT_NAME} "main.cpp" ${LIBIGL_EXTRA_SOURCES} Colorizer.h Colorizer.cpp EdgeLeveler.cpp EdgeLeveler.h SawToothCleaner.cpp SawToothCleaner.h Utilities.cpp Utilities.h)  
target_link_libraries(${PROJECT_NAME} PUBLIC
                      AWS::aws-lambda-runtime
                       ${AWSSDK_LINK_LIBRARIES}
                        ${LIBIGL_LIBRARIES} 
                         ${LIBIGL_EXTRA_LIBRARIES})

aws_lambda_package_target(${PROJECT_NAME})

我认为应该编译 libigl，但我尝试并没有找到库 blas。

谢谢！！！！

Answer 1

我修好了

我忘了复制“cmake”文件夹，它包含：

“FindLIBIGL.cmake”在我的例子中，libigl 在 logal_libigl 中

 # - Try to find the LIBIGL library
# Once done this will define
#
#  LIBIGL_FOUND - system has LIBIGL
#  LIBIGL_INCLUDE_DIR - **the** LIBIGL include directory
#  LIBIGL_INCLUDE_DIRS - LIBIGL include directories
#  LIBIGL_SOURCES - the LIBIGL source files
if(NOT LIBIGL_FOUND)

    FIND_PATH(LIBIGL_INCLUDE_DIR igl/readOBJ.h
            ${PROJECT_SOURCE_DIR}/local_libigl/libigl
            ${PROJECT_SOURCE_DIR}/local_libigl/libigl/include
            )


    if(LIBIGL_INCLUDE_DIR)
        set(LIBIGL_FOUND TRUE)
        set(LIBIGL_INCLUDE_DIRS ${LIBIGL_INCLUDE_DIR}  ${LIBIGL_INCLUDE_DIR}/../external/Singular_Value_Decomposition)
        #set(LIBIGL_SOURCES
        #   ${LIBIGL_INCLUDE_DIR}/igl/viewer/Viewer.cpp
        #)
    endif()

endif()