C Boost undefined reference to boost system generic category

Question

I am trying to include Boost libraries in my project and have been facing issues in the same  I am on Ubuntu 12 10 with Codeblocks IDE and tried installing the libraries manually reading instructions from the site  but was getting error s with header as well as to-be-built-before-use libraries    I then installed the libraries via terminalby sudo apt-get install libboost-all-dev  After this  in my programs on Codeblocks  I can include headers like  include  lt boost regex hpp gt  but when I try to include the header for the Filesystem library    include  boost filesystem operations hpp      I am getting the following error     usr include boost system error code hpp 214 undefined reference to boost  system  generic category       I am not sure how to resolve this error  specifically in Codeblocks on Linux   I really could use some help here   Compiler   Gcc Program code  Only tried inlcuding the above file system operations hpp file   Build log from Codeblocks   Build started on  20-11-2012 at 18 02 53 Build ended on  20-11-2012 at 18 02 54 -------------- Build  Debug in libopenFrameworks --------------- Target is up to date  -------------- Build  Debug in reader1 --------------- make -s -f Makefile Debug linking i686 bin reader1 debug linux obj i686Debug src testApp o  In function    static initialization and destruction 0    usr include boost system error code hpp 214  undefined reference to  boost  system  generic category     usr include boost system error code hpp 215  undefined reference to  boost  system  generic category     usr include boost system error code hpp 216  undefined reference to  boost  system  system category    obj i686Debug src main o  In function    static initialization and destruction 0    usr include boost system error code hpp 214  undefined reference to  boost  system  generic category     usr include boost system error code hpp 215  undefined reference to  boost  system  generic category     usr include boost system error code hpp 216  undefined reference to  boost  system  system category    collect2  ld returned 1 exit status make       bin reader1 debug  Error 1 Process terminated with status 2  0 minutes  1 seconds  6 errors  0 warnings

User · Answer

Same problem on building a simple boost example  solved after i changed the g   compiler flag from -std c  14 to -std c  11   And I noticed that it s a C  11 Example

User · Answer

I searched for a solution as well  and none of the answers I encountered solved the error  Until I found the answer of  ViRuSTriNiTy  to this thread  Undefined reference to   39 boost  system  generic category    39    according to that answer  try to add these lines to your cmake file   find package Boost 1 55 0 REQUIRED COMPONENTS system filesystem  include directories       Boost INCLUDE DIRS   link directories       Boost LIBRARY DIRS   target link libraries       Boost LIBRARIES

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try   g   -c main cpp  amp  amp  g   main o  usr lib x86 64-linux-gnu libboost system so  amp  amp    a out     usr lib x86 64-linux-gnu  is the location of the boost library  use find  usr  -name   boost  so  to find the boost library location

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It s a linker problem  Include the static library path into your project   For Qt Creator open the project file  pro and add the following line   LIBS    -L lt path for boost libraries in the system gt  -lboost system   In my case Ubuntu x86 64   LIBS    -L usr lib x86 64-linux-gnu -lboost system   For Codeblocks  open up Settings- gt Compiler   - gt Linker settings tab and add   boost system   to the Link libraries text widget and press OK button

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Depending on the boost version libboost-system comes with the -mt suffix which should indicate the libraries multithreading capability   So if -lboost system cannot be found by the linker try -lboost system-mt

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You should link in the libboost system library  I am not sure about codeblocks  but the g   command-line option on your platform would be     -lboost system

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I had the same problem and also use Linux Mint  as nuduoz    I my case problem was solved after i added boost system to GCC C   Linker- gt Libraries

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This answer actually helped when using Boost and cmake   Adding add definitions -DBOOST ERROR CODE HEADER ONLY  for cmake file   My CMakeLists txt looks like this   cmake minimum required VERSION 3 12  project proj   set CMAKE CXX STANDARD 17    set SHARED DIR    CMAKE SOURCE DIR     shared    set BOOST LATEST DIR               SHARED DIR  boost 1 68 0   set BOOST LATEST BIN DIR           BOOST LATEST DIR  stage lib   set BOOST LATEST INCLUDE DIR       BOOST LATEST DIR  boost   set BOOST SYSTEM                   BOOST LATEST BIN DIR  libboost system so   set BOOST FS                       BOOST LATEST BIN DIR  libboost filesystem so   set BOOST THREAD                   BOOST LATEST BIN DIR  libboost thread so    set HYRISE SQL PARSER DIR              SHARED DIR  hyrise sql parser   set HYRISE SQL PARSER BIN DIR          HYRISE SQL PARSER DIR    set HYRISE SQL PARSER INCLUDE DIR      HYRISE SQL PARSER DIR  src   set HYRISE SQLPARSER                   HYRISE SQL PARSER BIN DIR  libsqlparser so     include directories   CMAKE SOURCE DIR    BOOST LATEST INCLUDE DIR    HYRISE SQL PARSER INCLUDE DIR    set BOOST LIBRARYDIR   usr lib x86 64-linux-gnu    set Boost USE STATIC LIBS OFF  set Boost USE MULTITHREADED ON  set Boost USE STATIC RUNTIME OFF   add definitions -DBOOST ERROR CODE HEADER ONLY   find package Boost 1 68 0 REQUIRED COMPONENTS system thread filesystem   add executable proj main cpp row row cpp row row h table table cpp table table h page page cpp page page h         processor processor cpp processor processor h engine instance cpp engine instance h utils h         meta command h terminal terminal cpp terminal terminal h    if Boost FOUND      include directories   Boost INCLUDE DIRS       target link libraries proj PUBLIC Boost  system Boost  filesystem Boost  thread   HYRISE SQLPARSER   endif

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After testing the proposed solutions described above  I found only these few of lines would work     I am using Ubuntu 16 04   cmake minimum required VERSION 3 13  project myProject     set CMAKE CXX STANDARD 11  add executable myProject main cpp     find package Boost 1 58 0 REQUIRED COMPONENTS system filesystem  target link libraries myProject   Boost LIBRARIES

User · Answer

g   -lboost system -lboost filesystem userentry cpp -o userentry   worked perfectly under debian   boost c   libraries installed with apt-get

User · Answer

Il the library is not installed you should give boost libraries folder   example      g   -L usr lib x86 64-linux-gnu -lboost system -lboost filesystem prog cpp -o prog

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You could come across another problem  After installing Boost on the Linux Mint I ve had the same problem  Linking -lboost system or -lboost system-mt haven t worked because library have had name libboost system so 1 54 0    So the solution is to create symbolic link to the original file  In my case  sudo ln -s  usr lib x86 64-linux-gnu libboost system so 1 54 0  usr lib libboost system so   For more information see this question

[c++] C++ Boost: undefined reference to boost::system::generic_category()

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