Add external libraries to CMakeList.txt c++

c++ cmake libraries

156,068

I would start with upgrade of CMAKE version.

You can use INCLUDE_DIRECTORIES for header location and LINK_DIRECTORIES + TARGET_LINK_LIBRARIES for libraries

INCLUDE_DIRECTORIES(your/header/dir)
LINK_DIRECTORIES(your/library/dir)
rosbuild_add_executable(kinectueye src/kinect_ueye.cpp)
TARGET_LINK_LIBRARIES(kinectueye lib1 lib2 lib2 ...)

note that lib1 is expanded to liblib1.so (on Linux), so use ln to create appropriate links in case you do not have them

156,068

Author by

Ja_cpp

Student studying in France.

Updated on July 09, 2022

Comments

Ja_cpp almost 2 years
I have my external library as shown in this picture that I create the symbolic links after:

and the headers related to the library in other file:

I'm working with ROS ubuntu and I need to add these libraries to my package to CmakeList.txt:
```
cmake_minimum_required(VERSION 2.4.6)
include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake)

rosbuild_init()

#set the default path for built executables to the "bin" directory
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
#set the default path for built libraries to the "lib" directory
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)

#common commands for building c++ executables and libraries
#rosbuild_add_library(${PROJECT_NAME} src/example.cpp)
#target_link_libraries(${PROJECT_NAME} another_library)
#rosbuild_add_boost_directories()
#rosbuild_link_boost(${PROJECT_NAME} thread)
#rosbuild_add_executable(example examples/example.cpp)
#target_link_libraries(example ${PROJECT_NAME})

rosbuild_add_executable(kinectueye src/kinect_ueye.cpp)
```
So my question is how can I add these folders (I think the first one that I need to add I'm not sure) to my CmakeList.txt file so as I can use the classes and the methods in my program.
- grepsedawk almost 7 years
  
  Screenshots 404
- Ja_cpp almost 7 years
  
  @Pachonk it was just a screenshot of files in a folder.. I don't have it anymore
- Mitja almost 7 years
  
  404s are why I hate questions containing links.
- Ja_cpp almost 7 years
  
  @Mitja When I posted that question I was just created my account so I didn't have enough reputations to post an image in my question without a link. Sorry!
- Mitja almost 7 years
  
  Sorry, didn't know about those limitations. To me, it makes no sense to allow new accounts to embed links but not include images. Both can be used for spam, and links even better.. Also, I can't take my downvote from this question anymore as it is now >2hrs old (and, tbh, the question is kind of bad w/o the links working), so take an upvote to another reasonable question of yours instead.
- Ja_cpp over 6 years
  
  @Mitja that's okay! I've found the library again and I just edited my post.. thanks for pointing that out.. (@Pachonk)
- iled over 6 years
  
  @Ja_cpp next time use tree or something similar.
- Trevor Boyd Smith about 6 years
  
  Possible duplicate of CMake link to external library
Ja_cpp almost 10 years

Like that INCLUDE_DIRECTORIES(home/jros/roskinectueye/MIXEDVISION/incl‌ude/MIXEDVISION) LINK_DIRECTORIES(/home/jros/roskinectueye/MIXEDVISION/lib64) rosbuild_add_executable(kinectueye src/kinect_ueye.cpp) TARGET_LINK_LIBRARIES(kinectueye libgsl.so.0.16.0 libgslcblas.so.0.0.0)
Peter almost 10 years

TARGET_LINK_LIBRARIES(kinectueye gsl gslcblas ...)
Ja_cpp almost 10 years

I get this error: Linking CXX executable ../bin/kinectueye /usr/bin/ld: cannot find -lgsl /usr/bin/ld: cannot find -lHalf and for all the libraries !
Peter almost 10 years

make sure you have symbolic links in your directory libgsl.so -> libgsl.so.0.16.0, etc
Ja_cpp almost 10 years

Yes I have it, as shown in the first image that I post
Peter almost 10 years

No you do not, you need libname without "numbers" at the end
Peter almost 10 years

create symbolic links
Ja_cpp almost 10 years

I do ! the file become like shortcut .. is that symbolic link ?
Ja_cpp almost 10 years

unfortunately yes, I get Linking CXX executable ../bin/kinectueye /usr/bin/ld: cannot find -lgsl /usr/bin/ld: cannot find -lgslcblas ..... and some others
Peter almost 10 years

Please run make VERBOSE=1 and copy here the full link command for kinectueye.
Ja_cpp almost 10 years

I get that: make: *** No targets specified and no makefile found. Stop.
Peter almost 10 years

make VERBOSE=1 kinectueye, in the folder where you have generated build system from cmake
Peter almost 10 years

Sorry, I will not download the file. Please post it here. Just a link line.
Ja_cpp almost 10 years

Thank you @Peter It works now... I changed my package from Rosbuild to catkin. and concerning the library I change it to *.so.
filip over 5 years

What's "kinectueye"?