CODEWITHSUNDEEP
c++cbuildmsbuildcmake
Thomas Doyle
Thomas Doyle

Reputation: 57

Unable to link library with test binaries in cmake

I can't figure out how to link my static library with my test binaries using cmake on Windows. What am I doing wrong?

The structure of the project is like below

MyProject
  - build
  - include
    - catch
      - *.h
    - MyProject
      - *.h
  - src
    - *.c
  - test
    - *.cpp
  - CMakeLists.txt

And the CMakeLists.txt

CMAKE_MINIMUM_REQUIRED ( VERSION 3.3.1 )

SET ( NAME_LIB     "myproject" )
SET ( NAME_TEST    "test_myproject" )
SET ( PATH_BUILD   "${PROJECT_SOURCE_DIR}/build" )
SET ( PATH_INCLUDE "${PROJECT_SOURCE_DIR}/include" )
SET ( PATH_SOURCE  "${PROJECT_SOURCE_DIR}/src" )
SET ( PATH_TEST    "${PROJECT_SOURCE_DIR}/test" )

FILE ( GLOB SOURCES_LIB  "${PATH_SOURCE}/*.c" "${PATH_SOURCE}/*.cpp" )
FILE ( GLOB SOURCES_TEST "${PATH_TEST}/*.c" "${PATH_TEST}/*.cpp" )

INCLUDE_DIRECTORIES ("${PATH_INCLUDE}")

ADD_LIBRARY( ${NAME_LIB} STATIC "${SOURCES_LIB}" )
ADD_EXECUTABLE ( ${NAME_TEST} "${SOURCES_TEST}" )
TARGET_LINK_LIBRARIES ( ${NAME_TEST} "${PATH_BUILD}/${NAME_LIB}" )

Creating the visual studio project using cmake goes okay, but when I try to build the solution using msbuild I get the following error.

(Link target) ->
  LINK : fatal error LNK1104: cannot open file 'myproject.obj' [D:\Source\myproject\build\test_myproject.vcxproj]

Error when specifying the library name instead of the absolute path.

test_myproject.obj : error LNK2019: unresolved external symbol "int __cdecl myproject_parse(char const *)" (?myproject_parse@@YAHPBD@Z
) referenced in function _main [D:\Source\myproject\build\test_myproject.vcxproj]
D:\Source\myproject\build\Debug\test_myproject.exe : fatal error LNK1120: 1 unresolved externals [D:\Source\myproject\build\test_
myproject.vcxproj]

Upvotes: 2

Views: 1892

Answers (1)

kirinthos
kirinthos

Reputation: 452

try linking your library by target name, also maybe make sure the sources for the lib contain the files you expect, the other possibility is that no symbols are compiled

TARGET_LINK_LIBRARIES ( ${NAME_TEST} ${NAME_LIB} )

Upvotes: 2

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