[CMake] Don't download external projects again after calling "make clean"
Cedric Doucet
cedric.doucet at inria.fr
Thu Apr 23 08:18:35 EDT 2015
Eigen is just an example of an external library which is very fast to download and install with ExternalProject_Add.
It is convenient here to let you check that you have the same problem as mine on your machine.
However, I have other external libraries which have to be compiled.
----- Mail original -----
> De: "Cedric Doucet" <cedric.doucet at inria.fr>
> À: cmake at cmake.org
> Envoyé: Jeudi 23 Avril 2015 14:14:59
> Objet: Re: [CMake] Don't download external projects again after calling "make clean"
>
>
>
> > > Does the extracted eigen source tree look like it's a proper un-tarred
> > > eigen source directory?
>
> Yes, everything seems ok.
>
> > > Does this simple example work for you? (copied/pasted from another
> > > recent CMake mailing list discussion...)
>
> Yes, it works!
>
> > > Silly question, but do you need to build eigen, or are you using it as
> > > a header only library?
>
> Your question is not silly!
> Indeed, eigen is a header only library.
> So, you can copy and paste these header files wherever you want to install
> eigen.
> However, my goal is to provide a simple way to install a code which depends
> on external libraries.
> By 'simple', I mean users/developpers may just have to type the classical
> combo 'cmake/make/make install' to use the code.
> They are not expected to download and install anything by themselves.
>
> Cédric
>
>
>
> ----- Mail original -----
> > De: "Cedric Doucet" <cedric.doucet at inria.fr>
> > À: cmake at cmake.org
> > Envoyé: Jeudi 23 Avril 2015 14:01:54
> > Objet: Re: [CMake] Don't download external projects again after calling
> > "make clean"
> >
> >
> > I don't know why but providing my own STAMP_DIR seems to solve the problem:
> >
> > STAMP_DIR ${EXTERNAL_DIR}/eigen/stamp
> >
> > Hope it helps!
> >
> > Cédric
> >
> > ----- Mail original -----
> > > De: "David Cole" <DLRdave at aol.com>
> > > À: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > Cc: cmake at cmake.org
> > > Envoyé: Jeudi 23 Avril 2015 13:56:36
> > > Objet: Re: [CMake] Don't download external projects again after calling
> > > "make clean"
> > >
> > > It looks correct. I don't understand what the error is. It looks like
> > > the download and extract succeeds, but then it simply doesn't move on
> > > to the next step of trying to configure with CMake...
> > >
> > > Does the extracted eigen source tree look like it's a proper un-tarred
> > > eigen source directory?
> > >
> > > Does this simple example work for you? (copied/pasted from another
> > > recent CMake mailing list discussion...)
> > >
> > > # ----------------------------------------------------------------------
> > > # CMakeLists.txt
> > >
> > > cmake_minimum_required(VERSION 3.2)
> > > project(repro NONE)
> > >
> > > include(ExternalProject)
> > >
> > > ExternalProject_Add(name
> > > GIT_REPOSITORY https://github.com/dlrdave/SmallAndFast.git
> > > GIT_TAG 68c3cebf842aa8a13d659fec428fd85ca3a24307
> > > CMAKE_ARGS ""
> > > INSTALL_COMMAND ""
> > > )
> > >
> > > # Possible commits in this repo (most recent first)
> > > #
> > > # 68c3cebf842aa8a13d659fec428fd85ca3a24307
> > > # a0acdce3a549796ca4424c591c038eeb19e59a72
> > > # 5e98e304a464946dd34cb4c53eb3dd1fd348781b
> > > # 8ea36ce26a6b00ab839064a6066a984f6d6647f6
> > >
> > > # END CMakeLists.txt
> > >
> > >
> > > Silly question, but do you need to build eigen, or are you using it as
> > > a header only library?
> > >
> > > And... if you do need to build it, does v3.2.4 of eigen build with
> > > CMake or does it require some other configure command?
> > >
> > > (I've been assuming you've actually built eigen manually, and you're
> > > just trying to automate it with ExternalProject... but now I'm
> > > back-tracking and trying not to assume anything...)
> > >
> > >
> > > HTH,
> > > David C.
> > >
> > >
> > >
> > >
> > > On Thu, Apr 23, 2015 at 7:31 AM, Cedric Doucet <cedric.doucet at inria.fr>
> > > wrote:
> > > >
> > > > Thank you very much.
> > > > Your remarks are very helpful to me to understand how it works.
> > > >
> > > > I hope the following file is now correct:
> > > >
> > > > ==================
> > > > project (example CXX)
> > > >
> > > > set(CMAKE_VERBOSE_MAKEFILE ON)
> > > >
> > > > include(ProcessorCount)
> > > > ProcessorCount(N)
> > > > if(NOT N EQUAL 0)
> > > > set(CMAKE_BUILD_FLAGS -j${N})
> > > > endif()
> > > >
> > > > include(ExternalProject)
> > > > set(EXTERNAL_DIR ${CMAKE_CURRENT_BINARY_DIR})
> > > > ExternalProject_Add(eigen
> > > > PREFIX ${EXTERNAL_DIR}/eigen
> > > > DOWNLOAD_DIR /home/cdoucet/Downloads/eigen
> > > > SOURCE_DIR ${EXTERNAL_DIR}/eigen/src
> > > > BINARY_DIR ${EXTERNAL_DIR}/eigen/build
> > > > INSTALL_DIR ${EXTERNAL_DIR}/eigen/install
> > > > URL
> > > > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > > URL_MD5 4d0d77e06fef87b4fcd2c9b72cc8dc55
> > > > CMAKE_ARGS -D CMAKE_INSTALL_PREFIX=<INSTALL_DIR>
> > > > )
> > > > ===================
> > > >
> > > > After deleting /home/cdoucet/Downloads/eigen and all the content of my
> > > > build directory (from where I call "cmake .."), I typed:
> > > > cmake ..
> > > > make
> > > >
> > > > and I still obtain the following error message:
> > > >
> > > > =====================
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake
> > > > -H/home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > > -B/home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > > --check-build-system CMakeFiles/Makefile.cmake 0
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_start
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/progress.marks
> > > > make -f CMakeFiles/Makefile2 all
> > > > make[1]: entrant dans le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/depend
> > > > make[2]: entrant dans le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > cd /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > > &&
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_depends "Unix
> > > > Makefiles"
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/eigen.dir/DependInfo.cmake
> > > > --color=
> > > > Scanning dependencies of target eigen
> > > > make[2]: quittant le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/build
> > > > make[2]: entrant dans le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_report
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > > 3
> > > > [ 12%] Creating directories for 'eigen'
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/build
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/install
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/tmp
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > > /home/cdoucet/Downloads/eigen
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp/eigen-mkdir
> > > > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_progress_report
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > > 4
> > > > [ 25%] Performing download step (download, verify and extract) for
> > > > 'eigen'
> > > > cd
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen
> > > > && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp/download-eigen.cmake
> > > > -- downloading...
> > > > src='http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz'
> > > > dst='/home/cdoucet/Downloads/eigen/3.2.4.tar.gz'
> > > > timeout='none'
> > > > -- [download 100% complete]
> > > > -- [download 0% complete]
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> > > > -- [download 100% complete]
> > > > -- downloading... done
> > > > cd
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen
> > > > && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp/verify-eigen.cmake
> > > > -- verifying file...
> > > > file='/home/cdoucet/Downloads/eigen/3.2.4.tar.gz'
> > > > -- verifying file... done
> > > > cd
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen
> > > > && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp/extract-eigen.cmake
> > > > -- extracting...
> > > > src='/home/cdoucet/Downloads/eigen/3.2.4.tar.gz'
> > > > dst='/home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src'
> > > > -- extracting... [tar xfz]
> > > > -- extracting... [analysis]
> > > > -- extracting... [rename]
> > > > -- extracting... [clean up]
> > > > -- extracting... done
> > > > cd
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen
> > > > && /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/eigen/src/eigen-stamp/eigen-download
> > > > make[2]: *** [eigen/src/eigen-stamp/eigen-download] Erreur 1
> > > > make[2]: quittant le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > make[1]: *** [CMakeFiles/eigen.dir/all] Erreur 2
> > > > make[1]: quittant le répertoire «
> > > > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build »
> > > > make: *** [all] Erreur 2
> > > >
> > > > =====================
> > > >
> > > >
> > > >
> > > > ----- Mail original -----
> > > >> De: "David Cole" <DLRdave at aol.com>
> > > >> À: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> Cc: cmake at cmake.org
> > > >> Envoyé: Jeudi 23 Avril 2015 13:14:35
> > > >> Objet: Re: [CMake] Don't download external projects again after
> > > >> calling
> > > >> "make clean"
> > > >>
> > > >> I don't understand what the error is here, but here are some comments:
> > > >>
> > > >> (1)
> > > >> CMAKE_INSTALL_PREFIX=$<INSTALL_DIR>
> > > >>
> > > >> The $ is unnecessary and incorrect in this context. The literal string
> > > >> <INSTALL_DIR> is the thing that ExternalProject will substitute when
> > > >> it is processed into custom commands...
> > > >>
> > > >> (2)
> > > >> ONLY the DOWNLOAD_DIR parameter should be in an "external" (outside of
> > > >> your build tree) directory, to avoid re-downloading the exact same
> > > >> tar.gz file over and over again. The source tree and the build tree of
> > > >> the project should be in your build tree somewhere.
> > > >>
> > > >> (3)
> > > >> CONFIGURE_COMMAND cd <BINARY_DIR> && cmake should be unnecessary...
> > > >> The configure command is run in the binary dir by default. Instead,
> > > >> you should be able to use:
> > > >>
> > > >> CMAKE_ARGS -D CMAKE_INSTALL_PREFIX=<INSTALL_DIR>
> > > >>
> > > >> The binary dir is the working directory for configure, build and
> > > >> install commands. And the <SOURCE_DIR> is added automatically when you
> > > >> use CMAKE_ARGS with the default cmake CONFIGURE_COMMAND rather than
> > > >> specifying your own.
> > > >>
> > > >>
> > > >> Make those changes and try again with one more fresh build (i.e. --
> > > >> blow away the whole /home/cdoucet/Downloads/eigen directory and start
> > > >> clean...)
> > > >>
> > > >> Let us know if you still have an error after making those changes.
> > > >>
> > > >>
> > > >> HTH,
> > > >> David C.
> > > >>
> > > >>
> > > >>
> > > >> On Thu, Apr 23, 2015 at 6:57 AM, Cedric Doucet
> > > >> <cedric.doucet at inria.fr>
> > > >> wrote:
> > > >> > Hello David,
> > > >> >
> > > >> > I am using CMake 3.2.2.
> > > >> > I installed CMake from the sources because I use "modules" to manage
> > > >> > my
> > > >> > libraries.
> > > >> > But it's ok now: I modified the installation so that to support
> > > >> > https.
> > > >> >
> > > >> > Unfortunately, I still have a problem. :(
> > > >> > Maybe you could help me!
> > > >> >
> > > >> > Here is my CMakeLists.txt:
> > > >> >
> > > >> > =============
> > > >> >
> > > >> > cmake_minimum_required (VERSION 2.6)
> > > >> >
> > > >> > project (example CXX)
> > > >> >
> > > >> > set(CMAKE_VERBOSE_MAKEFILE ON)
> > > >> >
> > > >> > include(ProcessorCount)
> > > >> > ProcessorCount(N)
> > > >> > if(NOT N EQUAL 0)
> > > >> > set(CMAKE_BUILD_FLAGS -j${N})
> > > >> > endif()
> > > >> >
> > > >> > include(ExternalProject)
> > > >> > set(EXTERNAL_DIR /home/cdoucet/Downloads)
> > > >> > ExternalProject_Add(eigen
> > > >> > PREFIX ${EXTERNAL_DIR}/eigen
> > > >> > DOWNLOAD_DIR
> > > >> > ${EXTERNAL_DIR}/eigen/download
> > > >> > SOURCE_DIR
> > > >> > ${EXTERNAL_DIR}/eigen/src
> > > >> > BINARY_DIR
> > > >> > ${EXTERNAL_DIR}/eigen/build
> > > >> > INSTALL_DIR
> > > >> > ${EXTERNAL_DIR}/eigen/install
> > > >> > URL
> > > >> > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > >> > URL_MD5
> > > >> > 4d0d77e06fef87b4fcd2c9b72cc8dc55
> > > >> > CONFIGURE_COMMAND cd <BINARY_DIR>
> > > >> > &&
> > > >> > cmake -D CMAKE_INSTALL_PREFIX=$<INSTALL_DIR> <SOURCE_DIR>
> > > >> > )
> > > >> >
> > > >> > =============
> > > >> >
> > > >> > And here is the error message:
> > > >> >
> > > >> > =====================
> > > >> >
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake
> > > >> > -H/home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > >> > -B/home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > --check-build-system CMakeFiles/Makefile.cmake 0
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E
> > > >> > cmake_progress_start
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/progress.marks
> > > >> > make -f CMakeFiles/Makefile2 all
> > > >> > make[1]: entrant dans le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/depend
> > > >> > make[2]: entrant dans le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > cd
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > &&
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E cmake_depends
> > > >> > "Unix
> > > >> > Makefiles"
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles/eigen.dir/DependInfo.cmake
> > > >> > --color=
> > > >> > make[2]: quittant le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > make -f CMakeFiles/eigen.dir/build.make CMakeFiles/eigen.dir/build
> > > >> > make[2]: entrant dans le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E
> > > >> > cmake_progress_report
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > >> > 3
> > > >> > [ 12%] Creating directories for 'eigen'
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/src
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/build
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/install
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/tmp
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E make_directory
> > > >> > /home/cdoucet/Downloads/eigen/download
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-mkdir
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E
> > > >> > cmake_progress_report
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build/CMakeFiles
> > > >> > 4
> > > >> > [ 25%] Performing download step (download, verify and extract) for
> > > >> > 'eigen'
> > > >> > cd /home/cdoucet/Downloads/eigen &&
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp/download-eigen.cmake
> > > >> > -- downloading...
> > > >> > src='http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz'
> > > >> > dst='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz'
> > > >> > timeout='none'
> > > >> > -- [download 100% complete]
> > > >> > -- [download 0% complete]
> > > >> > -- [download 1% complete]
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> > > >> > -- [download 100% complete]
> > > >> > -- downloading... done
> > > >> > cd /home/cdoucet/Downloads/eigen &&
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp/verify-eigen.cmake
> > > >> > -- verifying file...
> > > >> > file='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz'
> > > >> > -- verifying file... done
> > > >> > cd /home/cdoucet/Downloads/eigen &&
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -P
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp/extract-eigen.cmake
> > > >> > -- extracting...
> > > >> > src='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz'
> > > >> > dst='/home/cdoucet/Downloads/eigen/src'
> > > >> > -- extracting... [tar xfz]
> > > >> > -- extracting... [analysis]
> > > >> > -- extracting... [rename]
> > > >> > -- extracting... [clean up]
> > > >> > -- extracting... done
> > > >> > cd /home/cdoucet/Downloads/eigen &&
> > > >> > /usr/local/bibliotheques/cmake/3.2.2/bin/cmake -E touch
> > > >> > /home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-download
> > > >> > make[2]: ***
> > > >> > [/home/cdoucet/Downloads/eigen/src/eigen-stamp/eigen-download]
> > > >> > Erreur 1
> > > >> > make[2]: quittant le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > make[1]: *** [CMakeFiles/eigen.dir/all] Erreur 2
> > > >> > make[1]: quittant le répertoire «
> > > >> > /home/cdoucet/Documents/exemples/cmake/external_project/eigen/build
> > > >> > »
> > > >> > make: *** [all] Erreur 2
> > > >> >
> > > >> > =====================
> > > >> >
> > > >> >
> > > >> >
> > > >> > ________________________________
> > > >> >
> > > >> > De: "David Cole" <DLRdave at aol.com>
> > > >> > À: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> > Cc: cmake at cmake.org
> > > >> > Envoyé: Samedi 18 Avril 2015 20:39:57
> > > >> >
> > > >> > Objet: Re: [CMake] Don't download external projects again after
> > > >> > calling
> > > >> > "make clean"
> > > >> >
> > > >> > What version of CMake are you using? All the modern pre-built CMake
> > > >> > installations should support https without extra effort on your
> > > >> > part.
> > > >> > Are
> > > >> > you using a pre-built version from somewhere or are you building
> > > >> > CMake
> > > >> > yourself?
> > > >> >
> > > >> >
> > > >> > On Saturday, April 18, 2015, Cedric Doucet <cedric.doucet at inria.fr>
> > > >> > wrote:
> > > >> >>
> > > >> >>
> > > >> >> Ok it seems the answer to my problem is here:
> > > >> >> http://www.cmake.org/pipermail/cmake/2010-December/041295.html
> > > >> >> I will try it.
> > > >> >>
> > > >> >> ----- Mail original -----
> > > >> >> > De: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> >> > À: cmake at cmake.org
> > > >> >> > Envoyé: Samedi 18 Avril 2015 13:38:31
> > > >> >> > Objet: Re: [CMake] Don't download external projects again after
> > > >> >> > calling
> > > >> >> > "make clean"
> > > >> >> >
> > > >> >> >
> > > >> >> > I have just tried to install curl to get https support.
> > > >> >> > To do that, I have followed the steps below:
> > > >> >> >
> > > >> >> > 1. Installation of openssl:
> > > >> >> > 1.a. ./config --prefix=/my/openssl/path
> > > >> >> > 1.b. make
> > > >> >> > 1.c. make test
> > > >> >> > 1.d. make install
> > > >> >> > 2. Installation of curl
> > > >> >> > 2.a. ./configure --prefix=/my/curl/path
> > > >> >> > --with-ssl=/my/openssl/path/lib
> > > >> >> > 2.b. make
> > > >> >> > 2.c. make install
> > > >> >> >
> > > >> >> > I have also prepend PATH with /my/curl/path/bin.
> > > >> >> > However, the error remains.
> > > >> >> > It seems that my version of curl (7.41.0) is not taken into
> > > >> >> > acount
> > > >> >> > because I
> > > >> >> > have still this line in the error message:
> > > >> >> > User-Agent: curl/7.38.0
> > > >> >> > I tried to remove all previous of curl and libcurl but it does
> > > >> >> > not
> > > >> >> > change
> > > >> >> > anything.
> > > >> >> >
> > > >> >> > Could you help me?
> > > >> >> >
> > > >> >> > Cédric
> > > >> >> >
> > > >> >> >
> > > >> >> > ----- Mail original -----
> > > >> >> > > De: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> >> > > À: "David Cole" <DLRdave at aol.com>
> > > >> >> > > Cc: cmake at cmake.org
> > > >> >> > > Envoyé: Samedi 18 Avril 2015 13:00:28
> > > >> >> > > Objet: Re: [CMake] Don't download external projects again after
> > > >> >> > > calling
> > > >> >> > > "make clean"
> > > >> >> > >
> > > >> >> > >
> > > >> >> > > Hello David,
> > > >> >> > >
> > > >> >> > > thank you very much.
> > > >> >> > > Unfortunately, I get the following error message if I remove my
> > > >> >> > > download
> > > >> >> > > command:
> > > >> >> > >
> > > >> >> > > -- downloading...
> > > >> >> > > src='http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz'
> > > >> >> > > dst='/home/cdoucet/Downloads/eigen/download/3.2.4.tar.gz'
> > > >> >> > > timeout='none'
> > > >> >> > > -- [download 100% complete]
> > > >> >> > > CMake Error at src/eigen-stamp/download-eigen.cmake:27
> > > >> >> > > (message):
> > > >> >> > > error: downloading
> > > >> >> > > 'http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz'
> > > >> >> > > failed
> > > >> >> > >
> > > >> >> > > status_code: 1
> > > >> >> > > status_string: "Unsupported protocol"
> > > >> >> > > log: Hostname was NOT found in DNS cache
> > > >> >> > > Trying 131.103.20.167...
> > > >> >> > >
> > > >> >> > > Connected to bitbucket.org (131.103.20.167) port 80 (#0)
> > > >> >> > >
> > > >> >> > > GET /eigen/eigen/get/3.2.4.tar.gz HTTP/1.1
> > > >> >> > >
> > > >> >> > > User-Agent: curl/7.38.0
> > > >> >> > >
> > > >> >> > > Host: bitbucket.org
> > > >> >> > >
> > > >> >> > > Accept: */*
> > > >> >> > >
> > > >> >> > >
> > > >> >> > >
> > > >> >> > > HTTP/1.1 301 Moved Permanently
> > > >> >> > >
> > > >> >> > > Server nginx/1.6.2 is not blacklisted
> > > >> >> > >
> > > >> >> > > Server: nginx/1.6.2
> > > >> >> > >
> > > >> >> > > Date: Sat, 18 Apr 2015 10:55:20 GMT
> > > >> >> > >
> > > >> >> > > Content-Type: text/html
> > > >> >> > >
> > > >> >> > > Content-Length: 184
> > > >> >> > >
> > > >> >> > > Location: https://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > >> >> > >
> > > >> >> > >
> > > >> >> > >
> > > >> >> > > Ignoring the response-body
> > > >> >> > >
> > > >> >> > > <html>
> > > >> >> > >
> > > >> >> > > <head><title>301 Moved Permanently</title></head>
> > > >> >> > >
> > > >> >> > > <body bgcolor="white">
> > > >> >> > >
> > > >> >> > > <center><h1>301 Moved Permanently</h1></center>
> > > >> >> > >
> > > >> >> > > <hr><center>nginx/1.6.2</center>
> > > >> >> > >
> > > >> >> > > </body>
> > > >> >> > >
> > > >> >> > > </html>
> > > >> >> > >
> > > >> >> > > Connection #0 to host bitbucket.org left intact
> > > >> >> > >
> > > >> >> > > Issue another request to this URL:
> > > >> >> > > 'https://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz'
> > > >> >> > >
> > > >> >> > > Protocol "https" not supported or disabled in libcurl
> > > >> >> > >
> > > >> >> > > Closing connection -1
> > > >> >> > >
> > > >> >> > >
> > > >> >> > >
> > > >> >> > >
> > > >> >> > > ----- Mail original -----
> > > >> >> > > > De: "David Cole" <DLRdave at aol.com>
> > > >> >> > > > À: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> >> > > > Cc: cmake at cmake.org
> > > >> >> > > > Envoyé: Vendredi 17 Avril 2015 13:21:08
> > > >> >> > > > Objet: Re: [CMake] Don't download external projects again
> > > >> >> > > > after
> > > >> >> > > > calling
> > > >> >> > > > "make clean"
> > > >> >> > > >
> > > >> >> > > > Eliminate your DOWNLOAD_COMMAND. CMake knows how to do it
> > > >> >> > > > with
> > > >> >> > > > just
> > > >> >> > > > the URL_MD5, DOWNLOAD_DIR and SOURCE_DIR information....
> > > >> >> > > >
> > > >> >> > > > HTH,
> > > >> >> > > > David
> > > >> >> > > >
> > > >> >> > > >
> > > >> >> > > > On Fri, Apr 17, 2015 at 1:32 AM, Cedric Doucet
> > > >> >> > > > <cedric.doucet at inria.fr>
> > > >> >> > > > wrote:
> > > >> >> > > > >
> > > >> >> > > > > Hello David,
> > > >> >> > > > >
> > > >> >> > > > > thank you very much for your help.
> > > >> >> > > > >
> > > >> >> > > > > Unfortunately I may do something wrong because it does not
> > > >> >> > > > > work.
> > > >> >> > > > > After cleaning, the library is downloaded again.
> > > >> >> > > > >
> > > >> >> > > > > I guess my mistake comes from the fact I do not understand
> > > >> >> > > > > the
> > > >> >> > > > > role of
> > > >> >> > > > > URL_MD5.
> > > >> >> > > > > Below is a simple example where downloading and installing
> > > >> >> > > > > is
> > > >> >> > > > > very
> > > >> >> > > > > fast.
> > > >> >> > > > > You just have to replace the value of EXTERNAL_DIR by the
> > > >> >> > > > > path
> > > >> >> > > > > to
> > > >> >> > > > > your
> > > >> >> > > > > own
> > > >> >> > > > > "Downloads" repository.
> > > >> >> > > > > I tried to put URL in my DOWNLOAD_COMMAND but the call
> > > >> >> > > > > "wget
> > > >> >> > > > > <URL>"
> > > >> >> > > > > does
> > > >> >> > > > > not seem to be understood by the wget command.
> > > >> >> > > > >
> > > >> >> > > > > Thanks again!
> > > >> >> > > > >
> > > >> >> > > > > Cédric
> > > >> >> > > > >
> > > >> >> > > > >
> > > >> >> > > > > --------------------------------------------------------------------------
> > > >> >> > > > > cmake_minimum_required (VERSION 2.6)
> > > >> >> > > > >
> > > >> >> > > > > project (example CXX)
> > > >> >> > > > >
> > > >> >> > > > > set(CMAKE_VERBOSE_MAKEFILE ON)
> > > >> >> > > > >
> > > >> >> > > > > include(ProcessorCount)
> > > >> >> > > > > ProcessorCount(N)
> > > >> >> > > > > if(NOT N EQUAL 0)
> > > >> >> > > > > set(CMAKE_BUILD_FLAGS -j${N})
> > > >> >> > > > > endif()
> > > >> >> > > > >
> > > >> >> > > > > include(ExternalProject)
> > > >> >> > > > > set(EXTERNAL_DIR /home/cdoucet/Downloads)
> > > >> >> > > > > ExternalProject_Add(eigen
> > > >> >> > > > > PREFIX ${EXTERNAL_DIR}/eigen
> > > >> >> > > > > DOWNLOAD_DIR
> > > >> >> > > > > ${EXTERNAL_DIR}/eigen/download
> > > >> >> > > > > SOURCE_DIR ${EXTERNAL_DIR}/eigen/src
> > > >> >> > > > > BINARY_DIR ${EXTERNAL_DIR}/eigen/build
> > > >> >> > > > > INSTALL_DIR
> > > >> >> > > > > ${EXTERNAL_DIR}/eigen/install
> > > >> >> > > > > URL
> > > >> >> > > > >
> > > >> >> > > > > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > >> >> > > > > URL_MD5
> > > >> >> > > > > ccb18a771f678b38a3d33c321a8e7daf
> > > >> >> > > > > DOWNLOAD_COMMAND wget
> > > >> >> > > > >
> > > >> >> > > > > http://bitbucket.org/eigen/eigen/get/3.2.4.tar.gz
> > > >> >> > > > > &&
> > > >> >> > > > > tar xvzf 3.2.4.tar.gz -C <SOURCE_DIR>
> > > >> >> > > > > --strip-components=1
> > > >> >> > > > > CONFIGURE_COMMAND cd <BINARY_DIR> &&
> > > >> >> > > > > cmake
> > > >> >> > > > > -D
> > > >> >> > > > > CMAKE_INSTALL_PREFIX=$<INSTALL_DIR>
> > > >> >> > > > > <SOURCE_DIR>
> > > >> >> > > > > )
> > > >> >> > > > >
> > > >> >> > > > > ------------------------------------------------------------------------------
> > > >> >> > > > >
> > > >> >> > > > >
> > > >> >> > > > >
> > > >> >> > > > > ----- Mail original -----
> > > >> >> > > > >> De: "David Cole" <DLRdave at aol.com>
> > > >> >> > > > >> À: "Cedric Doucet" <cedric.doucet at inria.fr>
> > > >> >> > > > >> Cc: cmake at cmake.org
> > > >> >> > > > >> Envoyé: Lundi 13 Avril 2015 12:40:34
> > > >> >> > > > >> Objet: Re: [CMake] Don't download external projects again
> > > >> >> > > > >> after
> > > >> >> > > > >> calling
> > > >> >> > > > >> "make clean"
> > > >> >> > > > >>
> > > >> >> > > > >> Use the URL_MD5 and DOWNLOAD_DIR arguments to
> > > >> >> > > > >> ExternalProject_Add
> > > >> >> > > > >> to
> > > >> >> > > > >> put the downloaded files into a location outside the build
> > > >> >> > > > >> tree
> > > >> >> > > > >> (perhaps ~/Downloads on Mac/Linux or
> > > >> >> > > > >> $ENV{USERPROFILE}/Downloads
> > > >> >> > > > >> on
> > > >> >> > > > >> Windows).
> > > >> >> > > > >>
> > > >> >> > > > >> With DOWNLOAD_DIR outside the build tree, and the
> > > >> >> > > > >> checksums
> > > >> >> > > > >> of
> > > >> >> > > > >> the
> > > >> >> > > > >> downloaded files being the same as you've specified via
> > > >> >> > > > >> URL_MD5,
> > > >> >> > > > >> the
> > > >> >> > > > >> download portion will be avoided once there is a local
> > > >> >> > > > >> copy
> > > >> >> > > > >> of
> > > >> >> > > > >> a
> > > >> >> > > > >> file
> > > >> >> > > > >> available.
> > > >> >> > > > >>
> > > >> >> > > > >>
> > > >> >> > > > >> HTH,
> > > >> >> > > > >> David C.
> > > >> >> > > > >>
> > > >> >> > > > >>
> > > >> >> > > > >> On Mon, Apr 13, 2015 at 5:04 AM, Cedric Doucet
> > > >> >> > > > >> <cedric.doucet at inria.fr>
> > > >> >> > > > >> wrote:
> > > >> >> > > > >> >
> > > >> >> > > > >> > Hello!
> > > >> >> > > > >> >
> > > >> >> > > > >> > I use the ExternalProject_Add function to download
> > > >> >> > > > >> > third-party
> > > >> >> > > > >> > libraries
> > > >> >> > > > >> > of
> > > >> >> > > > >> > a code.
> > > >> >> > > > >> >
> > > >> >> > > > >> > Once a library has been downloaded, I can call "make" as
> > > >> >> > > > >> > many
> > > >> >> > > > >> > times
> > > >> >> > > > >> > as
> > > >> >> > > > >> > I
> > > >> >> > > > >> > want without downloading this library again.
> > > >> >> > > > >> > It seems that CMake detects that the library has already
> > > >> >> > > > >> > been
> > > >> >> > > > >> > downloaded.
> > > >> >> > > > >> >
> > > >> >> > > > >> > However, calling "make clean" seems to destroy this
> > > >> >> > > > >> > feature.
> > > >> >> > > > >> > Even if my library is not uninstalled during cleaning,
> > > >> >> > > > >> > calling
> > > >> >> > > > >> > "make"
> > > >> >> > > > >> > after
> > > >> >> > > > >> > "make clean" will lead CMake to try download the library
> > > >> >> > > > >> > again.
> > > >> >> > > > >> >
> > > >> >> > > > >> > How could I tell CMake not to download the library
> > > >> >> > > > >> > again?
> > > >> >> > > > >> >
> > > >> >> > > > >> > Thank you very much for your help!
> > > >> >> > > > >> >
> > > >> >> > > > >> > Cédric
> > > >> >> > > > >> >
> > > >> >> > > > >> > --
> > > >> >> > > > >> >
> > > >> >> > > > >> > 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
> > > >> >> > > > >> >
> > > >> >> > > > >> > Visit other Kitware open-source projects at
> > > >> >> > > > >> > http://www.kitware.com/opensource/opensource.html
> > > >> >> > > > >> >
> > > >> >> > > > >> > Follow this link to subscribe/unsubscribe:
> > > >> >> > > > >> > http://public.kitware.com/mailman/listinfo/cmake
> > > >> >> > > > >>
> > > >> >> > > >
> > > >> >> > > --
> > > >> >> > >
> > > >> >> > > 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
> > > >> >> > >
> > > >> >> > > Visit other Kitware open-source projects at
> > > >> >> > > http://www.kitware.com/opensource/opensource.html
> > > >> >> > >
> > > >> >> > > Follow this link to subscribe/unsubscribe:
> > > >> >> > > http://public.kitware.com/mailman/listinfo/cmake
> > > >> >> > >
> > > >> >> > --
> > > >> >> >
> > > >> >> > 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
> > > >> >> >
> > > >> >> > Visit other Kitware open-source projects at
> > > >> >> > http://www.kitware.com/opensource/opensource.html
> > > >> >> >
> > > >> >> > Follow this link to subscribe/unsubscribe:
> > > >> >> > http://public.kitware.com/mailman/listinfo/cmake
> > > >> >> >
> > > >> >> --
> > > >> >>
> > > >> >> 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
> > > >> >>
> > > >> >> Visit other Kitware open-source projects at
> > > >> >> http://www.kitware.com/opensource/opensource.html
> > > >> >>
> > > >> >> Follow this link to subscribe/unsubscribe:
> > > >> >> http://public.kitware.com/mailman/listinfo/cmake
> > > >> >
> > > >> >
> > > >> >
> > > >> > --
> > > >> >
> > > >> > 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
> > > >> >
> > > >> > Visit other Kitware open-source projects at
> > > >> > http://www.kitware.com/opensource/opensource.html
> > > >> >
> > > >> > Follow this link to subscribe/unsubscribe:
> > > >> > http://public.kitware.com/mailman/listinfo/cmake
> > > >>
> > >
> > >
> > --
> >
> > 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
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/cmake
> >
> >
> --
>
> 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
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/cmake
>
>
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