CODEWITHSUNDEEP
cmakedependencies
Validus Oculus
Validus Oculus

Reputation: 2701

cmake order of execution of add_subdirectory command

I have a dependency problem in my cmake configuration. When I start building from root directory of the project, it always gives an error. When I disable add_subdirectory(application) where I use LibCalcBin, it builds the library successfully. Then, I can build the application.

Why cmake don't build the library first then the application as I have specified in the order of add_subdirectory commands. Is there any way to resolve this issue? Thanks.

Error

Please set them or make sure they are set and tested correctly in the CMake files:
LibCalcBin
    linked by target "run" in directory ...

./CMakeList.txt (Root Directory)

cmake_minimum_required(VERSION 3.3)
project(DLLAbstract)

# specify where to put executable
SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

# specify where to put binaries
SET(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

# compile and build library
add_subdirectory(library)

# compile and build application
add_subdirectory(application)

./library

set(src LibCalc.cpp Calculator.cpp)

add_definitions(-DDLL_EXPORT)

add_library(LibCalc SHARED ${src})

./application

set(Src main.cpp)

find_path(LibCalcHeader
    NAMES 
        LibCalc.hpp
    PATHS 
        ${PROJECT_SOURCE_DIR}/library
)

find_library(LibCalcBin
    NAMES 
        LibCalc
    PATHS 
        ${PROJECT_SOURCE_DIR}/bin/Debug
        ${PROJECT_SOURCE_DIR}/bin/Release
        ${PROJECT_SOURCE_DIR}/bin
)

include_directories(${LibCalcHeader})

add_executable(run ${Src})

target_link_libraries(run ${LibCalcBin})

Upvotes: 0

Views: 2913

Answers (1)

arrowd
arrowd

Reputation: 34401

The find_library command is used to locate libraries, which aren't part of your project. For libraries created by add_library command no special treatment is needed and you can use target name in target_link_libraries call:

target_link_libraries(run LibCalc)

Upvotes: 1

Related Questions