Question

您好我在使用cmake 2.8.12

在ubuntu上链接两个库时遇到问题

目录结构

libraries
  \lib1
    CMakeLists.txt
    source1.cpp
  \lib2
    CMakeLists.txt
    source2.cpp
build

lib1的CMakeLists.txt

cmake_minimum_required(VERSION 2.8.4)
project(lib1)

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ../../build/)
set(BASE_DIR ../)
set(SOURCE_FILES source1.cpp)

include_directories ("${BASE_DIR}")
add_library(lib1 SHARED ${SOURCE_FILES})

target_include_directories (lib1 PUBLIC ${BASE_DIR})

这构建良好。

然后对于lib2我有以下CMakeLists.txt

cmake_minimum_required(VERSION 2.8.4)
project(lib2)

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ../../build)
set(BASE_DIR ../)
set(SOURCE_FILES
    source2.cpp)

include_directories ("${BASE_DIR}")

add_library(lib2 SHARED ${SOURCE_FILES})

# include lib1
list(APPEND CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
find_library(lib1 lib1)
target_link_libraries(lib2 LINK_PUBLIC lib1)

我来了

链接CXX共享库../ build / liblib2.so

/ usr / bin / ld：找不到-llib1

我不清楚如何使用CMake正确链接这两个共享库。任何人都知道出了什么问题。

干杯，迈克

Answer 1

1）如果你使用

 target_include_directories (lib1 PUBLIC ${BASE_DIR})

为什么你认为你需要

 include_directories ("${BASE_DIR}")

2）试试这个：

find_library(lib1_location lib1)
message("Lib1 is at: ${lib1_location}")
target_link_libraries(lib2 LINK_PUBLIC ${lib1_location})

看看会发生什么。

3）见http://www.cmake.org/cmake/help/v3.0/manual/cmake-packages.7.html

cmake链接ubuntu上的共享库

1 个答案: