0

我有我的包,CMakeLists.txt我有一个libNewLib.so从另一个库(NewLib)的另一个包编译的。我还包含该库的头文件,如下所示:

set(LIB_MANUALLY "${CMAKE_CURRENT_SOURCE_DIR}/lib/") #I put the file libNewLib.so here
include_directories(
  include/NewLib
)
LINK_DIRECTORIES(${LIB_MANUALLY})
target_link_libraries(estimation libNewLib.so)

但我仍然得到错误:

/usr/bin/ld: cannot find -lNewLib

这是正确的方法吗?我尝试了几个解决方案,但没有奏效。

我正在使用Ros kinetic catkin

make VERSION 2.8.3

完整CMakeLists.txt

cmake_minimum_required(VERSION 2.8.3)
project(localization)

add_compile_options(-std=c++11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Ofast -march=native")
set(LIB_MANUALLY "${CMAKE_CURRENT_SOURCE_DIR}/lib/")
message(STATUS "LIB_MANUALLY : ${LIB_MANUALLY}")


find_package(catkin REQUIRED COMPONENTS
  cv_bridge
  image_transport
  roscpp
  rospy
  std_msgs
)

find_package(OpenCV REQUIRED
NO_MODULE # should be optional, tells CMake to use config mode
PATHS /usr/local # look here
NO_DEFAULT_PATH) # and don't look anywhere else
catkin_package(
#  INCLUDE_DIRS include
#  LIBRARIES localization
  CATKIN_DEPENDS cv_bridge image_transport roscpp rospy std_msgs
#  DEPENDS system_lib
)

include_directories(
  include
  include/NewLib
  ${catkin_INCLUDE_DIRS}
  ${OpenCV_INCLUDE_DIRS}
)
add_executable(estimation
  src/pose_map_estimation.cpp
  src/pose_map_estimation_main.cpp
)

target_link_libraries(estimation ${catkin_LIBRARIES} ${OpenCV_LIBRARIES} libNewLib.so)
LINK_DIRECTORIES(${LIB_MANUALLY})
4

1 回答 1

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https://cmake.org/cmake/help/v3.0/command/link_directories.html它说:

指定链接器应在其中搜索库的路径。该命令仅适用于调用后创建的目标。

因此,如果您在 link_directories 命令之后创建目标,请尝试它是否有效。

您还可以考虑编写一个适当的 cmake 文件来定位您的库并使用 find_package 来查找它。

于 2018-01-17T10:28:35.997 回答