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cmake或g++:包括dll库

g++ cmake dll c++

-1

PhoenixBlue · 技术社区 · 8 年前

我一直试图在Windows下编写一个C++代码,使用第三方库(我有.dll文件,.LIB文件和.h文件)。我在CMAKE中尝试了很多配置(我使用的是CLion),但是都没有成功!仍然找不到图书馆。所以我决定用平原 g++ 命令。还是什么都没有!!下图显示了文件树

这是我最新的cmakelists.txt文件:

cmake_minimum_required(VERSION 3.12)
project(tf_cert_mngr)
set(CMAKE_CXX_STANDARD 11)

set(LIBRARIES_DIR ${PROJECT_SOURCE_DIR}/openssl)
include_directories(src)
link_directories(${LIBRARIES_DIR}/lib)
include_directories(${LIBRARIES_DIR}/include)
#include_directories(include openssl\\include openssl\\lib2)

set(SOURCE_FILES src/Certificate.cpp src/tf-cert-mngr.cpp)
set(HEADER_FILES include/Certificate.h include/tf-cert-mngr.h)
find_package(ssl )
find_package(crypto)
add_executable(tf_cert_mngr ${SOURCE_FILES} ${HEADER_FILES})
target_link_libraries(tf_cert_mngr libssl.lib libcrypto.lib)

其结果是:

[ 33%] Linking CXX executable tf_cert_mngr.exe
c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../../mingw32/bin/ld.exe: cannot find -lssl
c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../../mingw32/bin/ld.exe: cannot 
find -lcrypto
collect2.exe: error: ld returned 1 exit status
CMakeFiles\tf_cert_mngr.dir\build.make:101: recipe for target 'tf_cert_mngr.exe' failed
mingw32-make.exe[3]: *** [tf_cert_mngr.exe] Error 1
CMakeFiles\Makefile2:71: recipe for target 'CMakeFiles/tf_cert_mngr.dir/all' failed
mingw32-make.exe[2]: *** [CMakeFiles/tf_cert_mngr.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/tf_cert_mngr.dir/rule] Error 2
CMakeFiles\Makefile2:83: recipe for target 'CMakeFiles/tf_cert_mngr.dir/rule' 
failed
Makefile:117: recipe for target 'tf_cert_mngr' failed
mingw32-make.exe: *** [tf_cert_mngr] Error 2

g++ src\tf-cert-mngr.cpp src\Certificate.cpp -Iinclude -I openssl\include  -L openssl\lib -llibcrypto.lib -l libssl.lib -o tester

其结果是:

c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../../mingw32/bin/ld.exe: cannot find -llibcrypto.lib
c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../../mingw32/bin/ld.exe: cannot find -llibssl.lib
collect2.exe: error: ld returned 1 exit status

1 回复 | 直到 8 年前

Community Mohan Dere 6 年前

请查看的文档FindOpenSSL.cmake. 这是在调用以下命令时内部调用的脚本:

find_package(OpenSSL) (请注意,对于可移植性,大小写很重要)。

请注意,脚本创建了两个目标:

此模块定义以下导入目标:

OpenSSL::SSL

OpenSSL ssl库(如果找到)。

OpenSSL::Crypto

所以试着改变你的 CMakeLists.txt 要读取的文件:

find_package(OpenSSL REQUIRED)

...

target_link_libraries(tf_cert_mngr OpenSSL::SSL OpenSSL::Crypto)

https://cmake.org/cmake/help/latest/module/FindOpenSSL.html