Re: [CMake] Using CMake with ifort compiler

Thu, 03 May 2012 07:26:38 -0700

The cmake documentation for add_subdirectory() states that the CMakeLists files in the subdirectories should contain their own project() command invocation. Your build file in the subdirectory does not contain one. I don't know that it will be automatically be seen by CMake as a fortran project because this is what the project in the top directory is.
Also I don't see the need for the two project files. I know this is what is done in the tutorial, but you could put everything in the project file from the top directory. 

On 5/3/12 9:25 AM, Vivek Venugopal wrote:

Thanks Kelly.

But i still get this error:
CMake cannot determine linker language for target:helloworld

Thanks,
Vivek


--
Vivek Venugopal



On May 2, 2012, at 6:36 PM, "Thompson, Kelly G" <k...@lanl.gov 
<mailto:k...@lanl.gov>> wrote:



My bad.  You need to tell CMake that this is a Fortran project.  Try 
this:


# CMakeLists.txt

cmake_minimum_required(VERSION 2.8.7)

*project(helloworldproject Fortran)*

add_subdirectory(src)

# src/CMakeLists.txt

cmake_minimum_required(VERSION 2.8.7)

file(GLOB helloworld_SOURCES *.f90)

add_executable(helloworld ${helloworld_SOURCES})

-kt

*From:*Vivek Venugopal [mailto:vivek....@gmail.com]
*Sent:* Wednesday, May 02, 2012 11:45 AM
*To:* Thompson, Kelly G
*Subject:* Re: [CMake] Using CMake with ifort compiler

I see an error during generate:

CMake Error: CMake cannot determine linker language for target:helloworld

CMake Error: Cannot determine link language for target "helloworld"

--

Vivek Venugopal





On May 2, 2012, at 12:45 PM, "Thompson, Kelly G" <k...@lanl.gov 
<mailto:k...@lanl.gov>> wrote:


    Try this:

    # CMakeLists.txt

    cmake_minimum_required(VERSION 2.8.7)

    *project(helloworldproject)*

    add_subdirectory(src)

    # src/CMakeLists.txt

    cmake_minimum_required(VERSION 2.8.7)

    file(GLOB helloworld_SOURCES *.f90)

    add_executable(helloworld ${helloworld_SOURCES})

    -kt

    *From:*cmake-boun...@cmake.org <mailto:cmake-boun...@cmake.org>
    [mailto:cmake-boun...@cmake.org]
    <mailto:[mailto:cmake-boun...@cmake.org]> *On Behalf Of *Vivek
    Venugopal
    *Sent:* Wednesday, May 02, 2012 9:39 AM
    *To:* cmake@cmake.org <mailto:cmake@cmake.org>
    *Subject:* [CMake] Using CMake with ifort compiler


    I am using CMake 2.8.7 on a Linux machine with Intel 11.0
    compilers. I am trying to use CMake for the first time as I would
    like to build this project on both Windows and Linux machines.

    I though of using a simple approach first and used a standard
    Hello World example: My src/HelloWorld.f90:


      


    |!Test helloworld in Fortran using Cmake|

    |program hello|

    |     print *, "Hello World!"|

    |end program hello|

    My main CMakeLists.txt:


      


    |# States that CMake required version must be greater than 2.8.7|

    |cmake_minimum_required(VERSION 2.8.7)|

    |enable_language (Fortran)|

    |project(helloworld Fortran)|

    |add_subdirectory(src)|

    |SET_TARGET_PROPERTIES(helloworld PROPERTIES LINKER_LANGUAGE FORTRAN)|

    My src/CMakeLists.txt:


      


    |cmake_minimum_required(VERSION 2.8.7)|

    |  |

    |# Include the directory itself as a path to include directories|

    |set(CMAKE_INCLUDE_CURRENT_DIR ON)|

    |  |

    |# For a large number of source files you can create it in a simpler way|

    |# using file() function:|

    |file(GLOB helloworld_SOURCES *.f90)|

    I still get an error which says CMAKE_FORTRAN_LINK_EXECUTABLE
    variable missing. I looked at Abinader's CMake tutorial#1
    
<http://www.abinader.com.br/bruno/how-cmake-simplifies-the-build-process-part-1-basic-build-system/>,
    but haven't had success so far.

    any suggestions?? Thanks in advance !

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