CMake not linking library files - c++

Question

I have a batch script which when run will simply call a cmake command to build a visual studio C++ project. However, that project should have two references to two static libraries... yet, no matter what I try I can't seem to get my project to link the libraries correctly. Here's how my folder structure looks:
.
+-- build
| +-- x64
| +-- DebugStatic
| +-- mylibA_static.lib
| +-- mylibB_static.lib
+-- Include
+-- Source
+-- myproject
| +-- Demo
| +-- build
| +-- cmake
| +-- GenerateVS2015.bat
| +-- CMakeLists.txt
| +-- Demo.cpp
| +-- stdafx.cpp
Now, I'm running the batch script from within the cmake folder inside the Demo project folder structure. My batch script is as follows:
#echo off
set startingDir=%CD%
set basepath=%~dp0
set builddir=%basepath%\..\build
if not exist %builddir% (mkdir %builddir%)
cd %builddir%
cmake -G "Visual Studio 14 2015 Win64" .. %*
cd %startingDir%
Nothing too complicated. Now, let's look at the CMakeLists.txt file:
cmake_minimum_required (VERSION 2.8)
PROJECT (Demo)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
# using Visual Studio C++
add_definitions(-DBUILD_DLL)
SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} xmllite.lib")
string(REGEX REPLACE "/bin/[^/]*$" "" VCINSTALLDIR "${CMAKE_C_COMPILER}")
message(STATUS "Guessed MSVC directory: ${VCINSTALLDIR}")
endif()
SET(SRCS
Demo.cpp
stdafx.cpp
)
ADD_LIBRARY(${PROJECT_NAME} SHARED ${SRCS})
TARGET_INCLUDE_DIRECTORIES(${PROJECT_NAME} PUBLIC ../../Include)
TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}../../build/x64/DebugStatic/mylibA_static.lib ${CMAKE_CURRENT_SOURCE_DIR}../../build/x64/DebugStatic/mylibB_static.lib)
Using this logic, wouldn't CMake build a Visual Studio C++ project called Demo.vcproj... and inside that project file would linked two libraries called mylibA_static.lib and mylibB_static.lib inside the references. However, when I try this, I never get any sort of linked library.

Answer 1

First, in your batch script, you only generated the makefiles, but you didn't actually build the library. So I would suggest you add the line make after cmake and before cd.
Second, I would suggest you surround all your strings with double quotes, in order to be specific, and avoid confusion between constants and variables. Also, it is better to add additional slashes. So, change
TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}../../build/x64/DebugStatic/mylibA_static.lib ${CMAKE_CURRENT_SOURCE_DIR}../../build/x64/DebugStatic/mylibB_static.lib)
to
TARGET_LINK_LIBRARIES(${PROJECT_NAME} "${CMAKE_CURRENT_SOURCE_DIR}/../../build/x64/DebugStatic/mylibA_static.lib" "${CMAKE_CURRENT_SOURCE_DIR}/../../build/x64/DebugStatic/mylibB_static.lib)".
As for the relative pathes, I think you are fine. But be careful when you use CMAKE_SOURCE_DIR and CMAKE_CURRENT_SOURCE_DIR. Here are some notes from CMake Wiki:
CMAKE_CURRENT_SOURCE_DIR this is the directory where the currently
processed CMakeLists.txt is located in
CMAKE_SOURCE_DIR this is the directory which contains the top-level
CMakeLists.txt, i.e. the top level source directory