Question

我是Cmake的新手。我读了同样问题的帖子，但我仍然无法解决我的问题。抱歉同样的问题。

我的提升包括：/usr/local/Cellar/boost/1.58.0/include 我的提升库位于：/usr/local/Cellar/boost/1.58.0/lib

我的CMakeLists.txt是：

cmake_minimum_required(VERSION 2.6)
SET(BOOST_ROOT /usr/local/Cellar/boost/1.58.0)
SET(BOOST_INCLUDEDIR /usr/local/Cellar/boost/1.58.0/include)
SET(BOOST_LIBRARYDIR /usr/local/Cellar/boost/1.58.0/lib)
set(Boost_USE_STATIC_LIBS   ON)
find_package(Boost COMPONENTS optional REQUIRED)

include_directories(${Boost_INCLUDEDIR})
target_link_libraries(hash ${Boost_LIBRARYDIR})

我得到的调试信息是：

-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:551 ]     _boost_TEST_VERSIONS =   1.59.0;1.59;1.58.0;1.58;1.57.0;1.57;1.56.0;1.56;1.55.0;1.55;1.54.0;1.54;1.53.0;1.53;1.52.0;1.52;1.51.0;1.51;1.50.0;1.50;1.49.0;1.49;1.48.0;1.48;1.47.0;1.47;1.46.1;1.46.0;1.46;1.45.0;1.45;1.44.0;1.44;1.43.0;1.43;1.42.0;1.42;1.41.0;1.41;1.40.0;1.40;1.39.0;1.39;1.38.0;1.38;1.37.0;1.37;1.36.1;1.36.0;1.36;1.35.1;1.35.0;1.35;1.34.1;1.34.0;1.34;1.33.1;1.33.0;1.33
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:553 ] Boost_USE_MULTITHREADED = TRUE
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:555 ] Boost_USE_STATIC_LIBS = ON
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:557 ] Boost_USE_STATIC_RUNTIME = 
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:559 ] Boost_ADDITIONAL_VERSIONS = 
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:561 ] Boost_NO_SYSTEM_PATHS = 
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:613 ] Declared as CMake or Environmental Variables:
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:615 ]   BOOST_ROOT = /usr/local/Cellar/boost/1.58.0
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:617 ]   BOOST_INCLUDEDIR = /usr/local/Cellar/boost/1.58.0/include
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:619 ]   BOOST_LIBRARYDIR = /usr/local/Cellar/boost/1.58.0/lib
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:621 ] _boost_TEST_VERSIONS = 1.59.0;1.59;1.58.0;1.58;1.57.0;1.57;1.56.0;1.56;1.55.0;1.55;1.54.0;1.54;1.53.0;1.53;1.52.0;1.52;1.51.0;1.51;1.50.0;1.50;1.49.0;1.49;1.48.0;1.48;1.47.0;1.47;1.46.1;1.46.0;1.46;1.45.0;1.45;1.44.0;1.44;1.43.0;1.43;1.42.0;1.42;1.41.0;1.41;1.40.0;1.40;1.39.0;1.39;1.38.0;1.38;1.37.0;1.37;1.36.1;1.36.0;1.36;1.35.1;1.35.0;1.35;1.34.1;1.34.0;1.34;1.33.1;1.33.0;1.33
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:690 ] Include debugging info:
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:692 ]   _boost_INCLUDE_SEARCH_DIRS = /usr/local/Cellar/boost/1.58.0/include;/usr/local/Cellar/boost/1.58.0/include;/usr/local/Cellar/boost/1.58.0;PATHS;C:/boost/include;C:/boost;/sw/local/include
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:694 ]   _boost_PATH_SUFFIXES = boost-1_59_0;boost_1_59_0;boost/boost-1_59_0;boost/boost_1_59_0;boost-1_59;boost_1_59;boost/boost-1_59;boost/boost_1_59;boost-1_58_0;boost_1_58_0;boost/boost-1_58_0;boost/boost_1_58_0;boost-1_58;boost_1_58;boost/boost-1_58;boost/boost_1_58;boost-1_57_0;boost_1_57_0;boost/boost-1_57_0;boost/boost_1_57_0;boost-1_57;boost_1_57;boost/boost-1_57;boost/boost_1_57;boost-1_56_0;boost_1_56_0;boost/boost-1_56_0;boost/boost_1_56_0;boost-1_56;boost_1_56;boost/boost-1_56;boost/boost_1_56;boost-1_55_0;boost_1_55_0;boost/boost-1_55_0;boost/boost_1_55_0;boost-1_55;boost_1_55;boost/boost-1_55;boost/boost_1_55;boost-1_54_0;boost_1_54_0;boost/boost-1_54_0;boost/boost_1_54_0;boost-1_54;boost_1_54;boost/boost-1_54;boost/boost_1_54;boost-1_53_0;boost_1_53_0;boost/boost-1_53_0;boost/boost_1_53_0;boost-1_53;boost_1_53;boost/boost-1_53;boost/boost_1_53;boost-1_52_0;boost_1_52_0;boost/boost-1_52_0;boost/boost_1_52_0;boost-1_52;boost_1_52;boost/boost-1_52;boost/boost_1_52;boost-1_51_0;boost_1_51_0;boost/boost-1_51_0;boost/boost_1_51_0;boost-1_51;boost_1_51;boost/boost-1_51;boost/boost_1_51;boost-1_50_0;boost_1_50_0;boost/boost-1_50_0;boost/boost_1_50_0;boost-1_50;boost_1_50;boost/boost-1_50;boost/boost_1_50;boost-1_49_0;boost_1_49_0;boost/boost-1_49_0;boost/boost_1_49_0;boost-1_49;boost_1_49;boost/boost-1_49;boost/boost_1_49;boost-1_48_0;boost_1_48_0;boost/boost-1_48_0;boost/boost_1_48_0;boost-1_48;boost_1_48;boost/boost-1_48;boost/boost_1_48;boost-1_47_0;boost_1_47_0;boost/boost-1_47_0;boost/boost_1_47_0;boost-1_47;boost_1_47;boost/boost-1_47;boost/boost_1_47;boost-1_46_1;boost_1_46_1;boost/boost-1_46_1;boost/boost_1_46_1;boost-1_46_0;boost_1_46_0;boost/boost-1_46_0;boost/boost_1_46_0;boost-1_46;boost_1_46;boost/boost-1_46;boost/boost_1_46;boost-1_45_0;boost_1_45_0;boost/boost-1_45_0;boost/boost_1_45_0;boost-1_45;boost_1_45;boost/boost-1_45;boost/boost_1_45;boost-1_44_0;boost_1_44_0;boost/boost-1_44_0;boost/boost_1_44_0;boost-1_44;boost_1_44;boost/boost-1_44;boost/boost_1_44;boost-1_43_0;boost_1_43_0;boost/boost-1_43_0;boost/boost_1_43_0;boost-1_43;boost_1_43;boost/boost-1_43;boost/boost_1_43;boost-1_42_0;boost_1_42_0;boost/boost-1_42_0;boost/boost_1_42_0;boost-1_42;boost_1_42;boost/boost-1_42;boost/boost_1_42;boost-1_41_0;boost_1_41_0;boost/boost-1_41_0;boost/boost_1_41_0;boost-1_41;boost_1_41;boost/boost-1_41;boost/boost_1_41;boost-1_40_0;boost_1_40_0;boost/boost-1_40_0;boost/boost_1_40_0;boost-1_40;boost_1_40;boost/boost-1_40;boost/boost_1_40;boost-1_39_0;boost_1_39_0;boost/boost-1_39_0;boost/boost_1_39_0;boost-1_39;boost_1_39;boost/boost-1_39;boost/boost_1_39;boost-1_38_0;boost_1_38_0;boost/boost-1_38_0;boost/boost_1_38_0;boost-1_38;boost_1_38;boost/boost-1_38;boost/boost_1_38;boost-1_37_0;boost_1_37_0;boost/boost-1_37_0;boost/boost_1_37_0;boost-1_37;boost_1_37;boost/boost-1_37;boost/boost_1_37;boost-1_36_1;boost_1_36_1;boost/boost-1_36_1;boost/boost_1_36_1;boost-1_36_0;boost_1_36_0;boost/boost-1_36_0;boost/boost_1_36_0;boost-1_36;boost_1_36;boost/boost-1_36;boost/boost_1_36;boost-1_35_1;boost_1_35_1;boost/boost-1_35_1;boost/boost_1_35_1;boost-1_35_0;boost_1_35_0;boost/boost-1_35_0;boost/boost_1_35_0;boost-1_35;boost_1_35;boost/boost-1_35;boost/boost_1_35;boost-1_34_1;boost_1_34_1;boost/boost-1_34_1;boost/boost_1_34_1;boost-1_34_0;boost_1_34_0;boost/boost-1_34_0;boost/boost_1_34_0;boost-1_34;boost_1_34;boost/boost-1_34;boost/boost_1_34;boost-1_33_1;boost_1_33_1;boost/boost-1_33_1;boost/boost_1_33_1;boost-1_33_0;boost_1_33_0;boost/boost-1_33_0;boost/boost_1_33_0;boost-1_33;boost_1_33;boost/boost-1_33;boost/boost_1_33
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:714 ] location of version.hpp: /usr/local/Cellar/boost/1.58.0/include/boost/version.hpp
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:738 ] version.hpp reveals boost 1.58.0
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:824 ] guessed _boost_COMPILER = 
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:834 ] _boost_MULTITHREADED = -mt
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:877 ] _boost_RELEASE_ABI_TAG = -
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:879 ] _boost_DEBUG_ABI_TAG = -d
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:933 ] _boost_LIBRARY_SEARCH_DIRS_RELEASE = /usr/local/Cellar/boost/1.58.0/lib;/usr/local/Cellar/boost/1.58.0/lib;/usr/local/Cellar/boost/1.58.0/stage/lib;/usr/local/Cellar/boost/1.58.0/include/lib;/usr/local/Cellar/boost/1.58.0/include/../lib;/usr/local/Cellar/boost/1.58.0/include/stage/lib;PATHS;C:/boost/lib;C:/boost;/sw/local/lib_boost_LIBRARY_SEARCH_DIRS_DEBUG   = /usr/local/Cellar/boost/1.58.0/lib;/usr/local/Cellar/boost/1.58.0/lib;/usr/local/Cellar/boost/1.58.0/stage/lib;/usr/local/Cellar/boost/1.58.0/include/lib;/usr/local/Cellar/boost/1.58.0/include/../lib;/usr/local/Cellar/boost/1.58.0/include/stage/lib;PATHS;C:/boost/lib;C:/boost;/sw/local/lib
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:1045 ] Searching for OPTIONAL_LIBRARY_RELEASE: boost_optional-mt-1_58;boost_optional-mt;boost_optional-mt-1_58;boost_optional-mt;boost_optional
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:1087 ] Searching for OPTIONAL_LIBRARY_DEBUG: boost_optional-mt-d-1_58;boost_optional-mt-d;boost_optional-mt-d-1_58;boost_optional-mt-d;boost_optional-mt;boost_optional
-- [ /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:1153 ] Boost_FOUND = 1
CMake Error at   /usr/local/Cellar/cmake/3.4.1/share/cmake/Modules/FindBoost.cmake:1247 (message):
Unable to find the requested Boost libraries.

Boost version: 1.58.0

Boost include path: /usr/local/Cellar/boost/1.58.0/include

Could not find the following static Boost libraries:

      boost_optional

No Boost libraries were found.  You may need to set BOOST_LIBRARYDIR to the
directory containing Boost libraries or BOOST_ROOT to the location of
Boost.
Call Stack (most recent call first):
CMakeLists.txt:6 (find_package)


CMake Warning (dev) at CMakeLists.txt:9 (target_link_libraries):
Cannot specify link libraries for target "hash" which is not built by this
project.

CMake does not support this but it used to work accidentally and is being
allowed for compatibility.

Policy CMP0016 is not set: target_link_libraries() reports error if its
only argument is not a target.  Run "cmake --help-policy CMP0016" for
policy details.  Use the cmake_policy command to set the policy and
suppress this warning.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring incomplete, errors occurred!

我通过运行cmake来执行。

编辑。问题已经解决了。正确的CMakeLists.txt应为：

cmake_minimum_required(VERSION 2.6)
SET(BOOST_ROOT /usr/local/Cellar/boost/1.58.0)
SET(BOOST_INCLUDEDIR /usr/local/Cellar/boost/1.58.0/include)
find_package(Boost REQUIRED)

include_directories(${BOOST_INCLUDEDIR})
add_executable(myProgram main.cc)

发生错误是因为Boost.Optional是一个仅限标头的文件，我不需要为它找到lib。

Answer 1

Boost.Optional是一个仅限头部的库：

请参阅http://www.boost.org/doc/libs/1_60_0/libs/optional/doc/html/index.html

find_package中的COMPONENTS仅对构建的库是必需的。所以，你只需要写：

find_package(Boost 1.58.0 REQUIRED)

请参阅类似的链接：CMake Boost 1.59.0 geometry

Answer 2

好吧，Boost.Optional是一个只有头的库，所以不可能找到它的共享库，根据文档，应该在components参数中指定哪个名称。我想这是问题的根源，你应该只是在没有任何组件的情况下搜索boost本身：

find_package(Boost REQUIRED)

在这种情况下，没有额外的预编译库，因此不需要{em> Boost.Optional target_link_libraries（但项目中的其他第三方库可能需要它。

CMake无法找到Boost图书馆

2 个答案: