正确配置CMake中的boost

时间:2014-05-21 12:11:20

标签: c++ boost cmake

我有一个非常简单的提升应用程序:

#include <iostream>
#include "boost/filesystem.hpp"
int main(int /*argc*/, char** /*argv*/) {
    if( boost::filesystem::exists(".") )
        std::cout << "exists" << std::endl;
    return 0;
}

我使用CMake配置:

cmake_minimum_required (VERSION 2.8 FATAL_ERROR)
set(USE_BOOST_LIB_HACK TRUE)

#--- Boost (TODO: wrong libraries linked)
find_package (BOOST COMPONENTS filesystem system REQUIRED)
include_directories(${Boost_INCLUDE_DIRS})
link_directories(${Boost_LIBRARY_DIRS})
if(USE_BOOST_LIB_HACK)
    #--- Now I need to manually append them to avoid missing symbols
    list(APPEND libs /usr/local/lib/libboost_system.dylib)
    list(APPEND libs /usr/local/lib/libboost_filesystem.dylib)
else()
    list(APPEND libs ${Boost_LIBRARIES}) 
    message(STATUS BOOST: ${Boost_LIBRARIES}) #<<< EMPTY :( :(
endif()

#--- Add all sources in this folder
file(GLOB_RECURSE hdrs "*.h")
file(GLOB_RECURSE srcs "*.cpp")

#--- Create executable and link
set(CMAKE_BUILD_TYPE "Debug")
add_executable(boost ${hdrs} ${srcs})
target_link_libraries(boost ${libs})

请注意上面文件中的hack USE_BOOST_LIB_HACK。但是Boost_LIBRARIES不应该有我需要的东西吗?在上面的配置中,它是一个简单的空字符串。我正在使用 OSX / Homebrew

中的{cmake,boost1.5}

我的配置是不正确的?

谢谢!

2 个答案:

答案 0 :(得分:4)

CMake区分大小写。使用find_package(Boost ...)但不使用find_package(BOOST ...)。 如果使用COMPONENTS,则BTW REQUIRED子选项是可选的:

find_package(Boost REQUIRED filesystem system)

答案 1 :(得分:0)

以下是FindBoost.cmake中的文档如何描述宏的正确用法:

#
#   set(Boost_USE_STATIC_LIBS        ON)
#   set(Boost_USE_MULTITHREADED      ON)
#   set(Boost_USE_STATIC_RUNTIME    OFF)
#   find_package( Boost 1.36.0 COMPONENTS date_time filesystem system ... )
#
#   if(Boost_FOUND)
#      include_directories(${Boost_INCLUDE_DIRS})
#      add_executable(foo foo.cc)
#      target_link_libraries(foo ${Boost_LIBRARIES})
#   endif()

这种方法确实适用于Linux。但是我不确定MacOSX / HomeBrew,虽然它没有在宏中特别提到。