CODEWITHSUNDEEP
c++headerincludepoint-cloud-library
Adrián Arroyo Perez
Adrián Arroyo Perez

Reputation: 395

CMakeLists - Make does not find header files

I have the following CMakeLists file: 

cmake_minimum_required(VERSION 2.6 FATAL_ERROR)

project(PointCloudComparator)

find_package(PCL 1.7 REQUIRED COMPONENTS common io)

set(PCL_DIR "/usr/share/pcl-1.7/PCLConfig.cmake")
set(PCL_INCLUDE_DIRS "/usr/include/pcl-1.7")
set(PCL_LIBRARY_DIRS "/usr/lib/")


include_directories(${PCL_INCLUDE_DIRS} "/usr/include/eigen3" "include")
link_directories(${PCL_LIBRARY_DIRS})
add_definitions(${PCL_DEFINITIONS})

add_executable (segmentator src/segmentation.cpp include/segmentation.h)
target_link_libraries (segmentator ${PCL_LIBRARIES} 
${PCL_COMMON_LIBRARIES} ${PCL_IO_LIBRARIES} 
"/usr/lib/libpcl_visualization.so" "/usr/lib/libpcl_keypoints.so" 
"/usr/lib/libpcl_features.so" "/usr/lib/libpcl_kdtree.so" 
"/usr/lib/libpcl_search.so" "/usr/lib/libpcl_filters.so" 
"/usr/lib/libpcl_segmentation.so" 
"/usr/lib/libpcl_sample_consensus.so")

add_executable (comparator src/comparator.cpp include/comparator.h 
include/segmentation.h)
target_link_libraries (comparator ${PCL_LIBRARIES} 
${PCL_COMMON_LIBRARIES} 
${PCL_IO_LIBRARIES} "/usr/lib/libpcl_visualization.so" 
"/usr/lib/libpcl_keypoints.so" "/usr/lib/libpcl_features.so" 
"/usr/lib/libpcl_kdtree.so" "/usr/lib/libpcl_search.so" 
"/usr/lib/libpcl_filters.so" "/usr/lib/libpcl_segmentation.so" 
"/usr/lib/libpcl_sample_consensus.so")

But, when I try to compile my code, I get the error: 

CMakeFiles/comparator.dir/src/comparator.cpp.o: In function `main':
comparator.cpp:(.text+0x3313): reference to 
`region_growing_segmentation(std::string)' not defined
collect2: error: ld returned 1 exit status

region_growing_segmentation(std::string) is a function declared in segmentation.h and defined in segmentation.cpp. Eclipse actually knows where the function is but when I try to run make it just simply cant find it. Any ideas?

Regards

Upvotes: 0

Views: 162

Answers (1)

Some programmer dude
Some programmer dude

Reputation: 409176

You are building two separate executables (segmentator and comparator). Each executable is made from one single source file and one single header file. That is what you say with the add_executable commands. The source files used by a single add_executable command is not shared with any other executable target you create.

If you have common code that should be shared between the two programs, then you should put it in a separate source file that you add to each executable (add the new common source file to the add_executable command). Or create a library target that is linked with the two executables.

Upvotes: 1

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