Hello!
I hope someone could finally help me. I spent about two days to find solution
for my problem, but with no luck.
Here is my problem:
I want to create a shared library (dll on Windows, .so on Linux, .dylib on OS
X) that contains some functions. This library should export only these
functions and nothing else. I guarantee that these function are pure C
functions, so no C++ STL is needed to call them.
Then I want to create an application that call functions from the shared
library mentioned above. I mean that the application should not have these
functions inside. I want OS linker to link the application with the library at
runtime, when it initializes the application. I know, how to do this on Windows
with Visual Studio: create DLL project, write functions and compile, then there
will be two files: .dll and .lib, link the .lib file with the application and
at runtime Windows will find the .dll. But how can I do so with CMake?
Here is my CMakeLists.txt:
cmake_minimum_required(VERSION 3.3)
project(untitled19)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(LIBRARY_SRC library.cpp)
add_library(libra SHARED ${LIBRARY_SRC})
set(SOURCE_FILES main.cpp)
add_executable(untitled19 ${SOURCE_FILES})
target_link_libraries(untitled19 libra)
This works and both library and executable are compiled. Unfortunately library
seems to be linked into the executable: ‘nm’ command shows that the executable
itself exports needed functions!
I think there should be a solution for this, but I cannot find it. Can anyone
help me?
For more clarification: I’m using OS X El Capitan.
——
Best regards, Ivan.
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