[SOLVED] Problem with building c++ code with cmake

Mikibelavista · 07-22-2015, 05:46 AM

I have downloaded code from:
https://github.com/pthimon/clustering
I have followed the instructions from readme.md file.
You will need the Eigen2 library (libeigen2-devel) and CMake (only tested under Linux).

$ mkdir release
$ cd release
$ cmake ../
$ make
The cmake:
cmake_minimum_required (VERSION 2.6)
project (clustering)

IF(CMAKE_SIZEOF_VOID_P EQUAL 4)
SET(LIB_SUFFIX "")
ELSE(CMAKE_SIZEOF_VOID_P EQUAL 4)
SET(LIB_SUFFIX 64)
ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 4)

SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}")

find_package(Eigen2 REQUIRED)
include_directories(${Eigen2_INCLUDE_DIR})

if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
FORCE)
endif(NOT CMAKE_BUILD_TYPE)

if(CMAKE_BUILD_TYPE MATCHES "Debug")
set(LIB_NAME clusteringd)
else(CMAKE_BUILD_TYPE MATCHES "Debug")
set(LIB_NAME clustering)
endif(CMAKE_BUILD_TYPE MATCHES "Debug")

file(GLOB LIB_PUBLIC_HEADERS "${CMAKE_SOURCE_DIR}/*.h")
file(GLOB LIB_SOURCES "${CMAKE_SOURCE_DIR}/*.cpp")

#add_library (${LIB_NAME}-s STATIC ${LIB_PUBLIC_HEADERS} ${LIB_SOURCES})
add_library (${LIB_NAME} SHARED ${LIB_PUBLIC_HEADERS} ${LIB_SOURCES})

install(
TARGETS ${LIB_NAME}
LIBRARY DESTINATION lib${LIB_SUFFIX}
)

#install(
# TARGETS ${LIB_NAME}-s
# ARCHIVE DESTINATION lib${LIB_SUFFIX}
#)

install(
FILES ${LIB_PUBLIC_HEADERS}
DESTINATION include/${LIB_NAME}
)

The problem is that I do not have bin folder in my build directory.Why?

rtmistler · 07-22-2015, 08:06 AM

This builds. What exact errors are you seeing, or why are you concluding something about a bin directory?

You need to have libeigen2-dev installed on your system. Their documentation incorrectly states that as libeigen2-devel. There is no bin directory needed.

You can download the zip or get the files and they'll be in the clustering-master tree. The instructions tell you to make the release sub-directory, change into that, and then run "cmake ../". That creates the Makefile. You are still in the releases sub-directory. From there you next run "make" and it does build.

You also do need to have cmake installed in your system.

John VV · 07-23-2015, 12:36 AM

libeigen2-devel
is the RPM redhat os name

rpm distros use -devel

Debian distros use -dev

install what is correct for your unknown operating system

also other than a minor bug fix 7 months ago this is 3 YEAR OLD code

on opensuse 13.2 using gcc 4.8 this builds

please POST !!! the output of the FIRST command to cmake
-- this--

Code:

cmake ../

it should look like this

Code:

-- The C compiler identification is GNU 4.8.3
-- The CXX compiler identification is GNU 4.8.3
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to:

also seeing as this IS A LIBRARY there will NOT be a /bin folder
this builds a library !!!
clustering-master/build/lib/libclustering.so

Mikibelavista · 07-23-2015, 01:09 AM

John VV,yes I got the same output as you.I am on Ubuntu 14.04.The initial confusion was why my exe file is located in CmakeFile/2.8.12/ directory. I guess than that I should put my input files(for clustering) in same folder.

Mikibelavista · 07-23-2015, 03:25 AM

I am listing my 2.8.12.2 folder:
CMakeCCompiler.cmake CMakeDetermineCompilerABI_C.bin CMakeSystem.cmake CompilerIdCXX
CMakeCXXCompiler.cmake CMakeDetermineCompilerABI_CXX.bin CompilerIdC

I still do not know how to execute the code.

rtmistler · 07-23-2015, 09:44 AM

Since OP is using Ubuntu, then they'll need the "-dev" package.

Either case you have it, and since you get the same output from cmake, then all you next need do is run the make.

And then you have a shared object library which you need to link with some other code to make use of the functions provided by that library. Re-Review the documentation provided by the author on the capabilities of that library.

Code:

myuser@rt-linux-desktop:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.5 LTS
Release:	12.04
Codename:	precise
myuser@rt-linux-desktop:~$ mkdir eigen
myuser@rt-linux-desktop:~$ cd eigen
myuser@rt-linux-desktop:~/eigen$ unzip ../Downloads/clustering-master.zip 
Archive:  ../Downloads/clustering-master.zip
06ac475b3da2c90ab0f24c4a5b64c8c80b74de23
   creating: clustering-master/
  inflating: clustering-master/.gitignore  
  inflating: clustering-master/CMakeLists.txt  
  inflating: clustering-master/ClusterRotate.cpp  
  inflating: clustering-master/ClusterRotate.h  
  inflating: clustering-master/Evrot.cpp  
  inflating: clustering-master/Evrot.h  
  inflating: clustering-master/FindEigen2.cmake  
  inflating: clustering-master/Kmeans.cpp  
  inflating: clustering-master/Kmeans.h  
  inflating: clustering-master/LICENSE  
  inflating: clustering-master/README.md  
  inflating: clustering-master/SpectralClustering.cpp  
  inflating: clustering-master/SpectralClustering.h  
myuser@rt-linux-desktop:~/eigen$ cd clustering-master
myuser@rt-linux-desktop:~/eigen/clustering-master$ mkdir release
myuser@rt-linux-desktop:~/eigen/clustering-master$ cd release
myuser@rt-linux-desktop:~/eigen/clustering-master/release$ cmake ../
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/myuser/eigen/clustering-master/release
myuser@rt-linux-desktop:~/eigen/clustering-master/release$ make
Scanning dependencies of target clustering
[ 25%] Building CXX object CMakeFiles/clustering.dir/Kmeans.cpp.o
[ 50%] Building CXX object CMakeFiles/clustering.dir/ClusterRotate.cpp.o
[ 75%] Building CXX object CMakeFiles/clustering.dir/SpectralClustering.cpp.o
[100%] Building CXX object CMakeFiles/clustering.dir/Evrot.cpp.o
Linking CXX shared library lib/libclustering.so
[100%] Built target clustering
myuser@rt-linux-desktop:~/eigen/clustering-master/release$