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I'm trying to use libcinder to make some visualizations. In integrating in my existing codebase, I've run into some linker errors that I can't figure out. I've boiled the problem down to a minimal example, with the following results:

cd /build/src && /usr/bin/cmake -E cmake_link_script CMakeFiles/BasicApp.dir/link.txt --verbose=1
/usr/bin/c++   -O3 -DNDEBUG   CMakeFiles/BasicApp.dir/BasicApp.cpp.o  -o ../bin/BasicApp -rdynamic -lPocoUtil -lPocoFoundation
make[2]: Leaving directory '/build'
[100%] Built target BasicApp
make[1]: Leaving directory '/build'
/usr/bin/cmake -E cmake_progress_start /build/CMakeFiles 0

If don't involve cinder at all, everything works fine, as seen above. if I add my function to the minimal cinder example (BasicApp), I get the following output on compilation:

cd /build/src && /usr/bin/cmake -E cmake_link_script CMakeFiles/BasicApp.dir/link.txt --verbose=1
/usr/bin/c++   -O3 -DNDEBUG   CMakeFiles/BasicApp.dir/BasicApp.cpp.o  -o ../bin/BasicApp -rdynamic -lPocoUtil -lPocoFoundation /cinder/lib/linux/x86_64/ogl/Release/libcinder.a -lGLU -lGL -lSM -lICE -lX11 -lXext -lXcursor -lXinerama -lXrandr -lXi -lz -lcurl -lfontconfig -lpulse -lmpg123 -lsndfile -lgobject-2.0 -lglib-2.0 -lgstreamer-1.0 -lgstbase-1.0 -lgstapp-1.0 -lgstvideo-1.0 -lgstgl-1.0 /cinder/lib/linux/x86_64//libboost_system.a /cinder/lib/linux/x86_64//libboost_filesystem.a -ldl -lpthread 
CMakeFiles/BasicApp.dir/BasicApp.cpp.o: In function `load_images(std::string, std::string, int, int)':
BasicApp.cpp:(.text+0xca2): undefined reference to `Poco::DirectoryIterator::DirectoryIterator(std::string const&)'
BasicApp.cpp:(.text+0xd57): undefined reference to `Poco::DirectoryIterator::DirectoryIterator(std::string const&)'
collect2: error: ld returned 1 exit status
src/CMakeFiles/BasicApp.dir/build.make:118: recipe for target 'bin/BasicApp' failed
make[2]: *** [bin/BasicApp] Error 1
make[2]: Leaving directory '/build'
CMakeFiles/Makefile2:1244: recipe for target 'src/CMakeFiles/BasicApp.dir/all' failed
make[1]: *** [src/CMakeFiles/BasicApp.dir/all] Error 2
make[1]: Leaving directory '/build'
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

I'm assuming that some configuration set in the cinder cmake files is messing things up, but I don't understand why or how to fix it. This is with gcc version 5.4.0 and cmake version 3.5.1.

Here is a reduced cmake file that has this issue:

cmake_minimum_required(VERSION 3.2)
project(segslam C CXX)
set(CMAKE_CXX_STANDARD 11)

list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/poco")

find_package(Poco REQUIRED)

#include($ENV{CINDER_PATH}/proj/cmake/configure.cmake)
#set(cinder_DIR $ENV{CINDER_PATH}/${CINDER_LIB_DIRECTORY})
#find_package(cinder REQUIRED PATHS " $ENV{CINDER_PATH}/${CINDER_LIB_DIRECTORY}")



add_executable(BasicApp BasicApp.cpp)

#target_include_directories(BasicApp PUBLIC $ENV{CINDER_PATH}/include)
#target_link_libraries(BasicApp cinder)


target_link_libraries(BasicApp ${Poco_LIBRARIES})

set_target_properties(BasicApp PROPERTIES
    DEBUG_POSTFIX "d"
    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")

install(TARGETS BasicApp RUNTIME DESTINATION bin COMPONENT main)
install(FILES ${srcs} DESTINATION app COMPONENT main)

If the commented lines are uncommented, it links in cinder and things break. I'm using a FindPoco.cmake file from here. The cinder cmake files are located here.

It doesn't seem to matter what the linking order is, and none of the other libraries I'm using have this issue.

voxelite
  • 11
  • 2

1 Answers1

1

So it turns out that the issue is an ABI mismatch. Cinder ships with precompiled boost libraries that use a gcc version <5.1, which will cause conflicts if you try to use libraries that have been compiled with gcc version >= 5.1.

My fix was to remove the cinder precompiled boost libraries and recompile with the version of boost in the ubuntu repos.

See this thread on the cinder discourse for more info.

voxelite
  • 11
  • 2