[CMake] Help cmake First project

Mon Aug 4 11:49:27 EDT 2014

Hi Rodrigo,

You have to state to cmake all of your source files for compilation,
otherwise they won't be found in the generated makefiles.

You can do this either by writing all file names individually in
add_executable, or create a variable or a list that contains all of the
file names, or assign the file names to a variable using glob which is sort
of like grep for cmake. Then you must provide this variable instead to
add_executable.

With glob it could look something like this (a "quick and dirty" solution):

# get all files under directory src
file(GLOB SRC_FILES "src/*.c")

# set include and link directories
include_directories(...)
link_directories(...)

# add target
add_executable(protpred-Gromacs-NSGA2 ${SRC_FILES})

Since you say that only the protpred-Gromacs-NSGA2.c is part of the
executable, I would personally create properly a library using the rest of
the files that could form a library and an executable that links against
this library. Look for the commands "add_library" and
"target_link_libraries".

All the best,
Angeliki

On Mon, Aug 4, 2014 at 5:35 PM, Rodrigo Faccioli <rodrigo.faccioli at gmail.com
> wrote:

> Thanks Chuck and Angeliki. Thanks your help.
>
> However, unfortunatelly, I couldn't fix.
>
> In [1] I show all my project. In src directory there is all .c files. In
> include directory there is .h files.
>
> The protpred-Gromacs-NSGA2.c is one of executable. The others are:
> protpred-Gromacs-Dominance.c,
> protpred-Gromacs-Front.c, protpred-Gromacs-MC_Metropolis.c, protpred-Gromacs-Mono.c, protpred-Gromacs-Random_Algorithm.c.
>
> All executable share the include directory.
>
> In [2] contains my Makefile that I have already used in my project.
> Therefore, I would like to build this make file using cmake. Furthermore, I
> would compile in windows too. Because of this, I have studied cmake. My
> doubt is how can I build CMakeList.txt.
>
> I appreciate any help.
>
> [1] https://dl.dropboxusercontent.com/u/4270818/2pg_cartesian_cmake.zip
> [2] https://dl.dropboxusercontent.com/u/4270818/Makefile
>
> Best regards,
>
>
> --
> Rodrigo Antonio Faccioli, Ph.D
> Development Software for Structural Bioinformatics
> Barao de Maua University
> University of Sao Paulo
> Lindedin - br.linkedin.com/pub/rodrigo-antonio-faccioli/7/589/a5/
> Curriculum Lattes - http://lattes.cnpq.br/1025157978990218
>
>
> On Mon, Aug 4, 2014 at 11:53 AM, Chuck Atkins <chuck.atkins at kitware.com>
> wrote:
>
>> Hi Rodrigo,
>>
>> It looks like you are probably missing some source files in your
>> executable.  Is protpred-Gromacs-NSGA2.c the only piece of code that gets
>> built for the executable?  If not, you'll need to make sure that all the
>> necessary source files get either built into the executable or build as a
>> separate library and linked into the executable.  Also, you can simply your
>> CMakeLists.txt and clean it up a bit by leaving out the
>> ${2pg_cartesian_SOURCE_DIR} in most commands since CMake looks in the
>> current directory of the CMakeLists.txt file by default for most of its
>> functions:
>>
>> include_directories(include)
>> add_executable(protpred-Gromacs-NSGA2 src/protpred-Gromacs-NSGA2.c)
>> install(TARGETS protpred-Gromacs-NSGA2 DESTINATION bin)
>>
>>
>> - Chuck
>>
>>
>> On Mon, Aug 4, 2014 at 10:26 AM, Rodrigo Faccioli <
>> rodrigo.faccioli at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I'm trying to use cmake in my project. In fact, it is my first time
>>> using cmake.
>>>
>>> My CmakeList file is below. You can see it is very simple because I'm
>>> trying to compile a binary.
>>>
>>> cmake_minimum_required(VERSION 2.8)
>>>
>>> project(2pg_cartesian)
>>> set(PROJECT_VERSION "1.0")
>>>
>>> include_directories(${2pg_cartesian_SOURCE_DIR}/include)
>>>
>>> add_executable(protpred-Gromacs-NSGA2
>>> ${2pg_cartesian_SOURCE_DIR}/src/protpred-Gromacs-NSGA2.c)
>>>
>>> install(TARGETS protpred-Gromacs-NSGA2 DESTINATION bin)
>>>
>>> When I run cmake .. I receive  Build files have been written to:
>>> /home/faccioli/Downloads/2pg_cartesian/build. I understand that all is
>>> ok.
>>>
>>> faccioli at faccioli:~/Downloads/2pg_cartesian/build$ cmake ..
>>> -- The C compiler identification is GNU 4.7.2
>>> -- The CXX compiler identification is GNU 4.7.2
>>> -- 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/faccioli/Downloads/2pg_cartesian/build
>>> faccioli at faccioli:~/Downloads/2pg_cartesian/build$
>>>
>>> However, when I run make, I receive an error message as below:
>>>
>>> faccioli at faccioli:~/Downloads/2pg_cartesian/build$ make
>>> Scanning dependencies of target protpred-Gromacs-NSGA2
>>> [100%] Building C object
>>> CMakeFiles/protpred-Gromacs-NSGA2.dir/src/protpred-Gromacs-NSGA2.c.o
>>> Linking C executable protpred-Gromacs-NSGA2
>>> CMakeFiles/protpred-Gromacs-NSGA2.dir/src/protpred-Gromacs-NSGA2.c.o: In
>>> function `main':
>>> protpred-Gromacs-NSGA2.c:(.text+0x1e): undefined reference to
>>> `display_msg'
>>> protpred-Gromacs-NSGA2.c:(.text+0x3e): undefined reference to
>>> `load_parameters_from_file'
>>> protpred-Gromacs-NSGA2.c:(.text+0x58): undefined reference to `ea_nsga2'
>>> protpred-Gromacs-NSGA2.c:(.text+0x64): undefined reference to
>>> `fatal_error'
>>> protpred-Gromacs-NSGA2.c:(.text+0x73): undefined reference to
>>> `deAllocateload_parameters'
>>> protpred-Gromacs-NSGA2.c:(.text+0x7d): undefined reference to
>>> `display_msg'
>>> collect2: error: ld returned 1 exit status
>>> make[2]: ** [protpred-Gromacs-NSGA2] Erro 1
>>> make[1]: ** [CMakeFiles/protpred-Gromacs-NSGA2.dir/all] Erro 2
>>> make: ** [all] Erro 2
>>> faccioli at faccioli:~/Downloads/2pg_cartesian/build$
>>>
>>> Could you help me understand how can I fix this problem?
>>>
>>> I appreciate any help.
>>>
>>> Best regards,
>>>
>>> --
>>> Rodrigo Antonio Faccioli, Ph.D
>>> Development Software for Structural Bioinformatics
>>> Barao de Maua University
>>> University of Sao Paulo
>>> Lindedin - br.linkedin.com/pub/rodrigo-antonio-faccioli/7/589/a5/
>>> Curriculum Lattes - http://lattes.cnpq.br/1025157978990218
>>>
>>> --
>>>
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>>
>>
>
> --
>
> Powered by www.kitware.com
>
> Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
>
> Kitware offers various services to support the CMake community. For more
> information on each offering, please visit:
>
> CMake Support: http://cmake.org/cmake/help/support.html
> CMake Consulting: http://cmake.org/cmake/help/consulting.html
> CMake Training Courses: http://cmake.org/cmake/help/training.html
>
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>
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