[yocto] bitbake with cmake recipe

[Zafrullah Syed]

Hi Stefan, Hi all,

My build was successful with CMake. I made some changes to my recipe:

DESCRIPTION = "cameracapture application"
SECTION = "examples"
LICENSE = "CLOSED"
PR = "r0"

DEPENDS = "opencv"

SRC_URI = "git://github.com/zafrullahsyed/cameracapture.git
;protocol=https;tag=v0.1"

S = "${WORKDIR}/git"

inherit pkgconfig cmake

do_install() {
    install -d ${D}${bindir}
    install -m 0755 cameracapture ${D}${bindir}
}

I didn't specify do_install, which caused the errors.

Your inputs helped me very much. Thanks a ton.

Regards,
Zafrullah


On Sun, Aug 25, 2013 at 8:10 PM, Stefan Herbrechtsmeier <
stefan at herbrechtsmeier.net> wrote:

>  Am 25.08.2013 17:03, schrieb Zafrullah Syed:
>
> Hi Stefan,
>
>  I updated my recipe:
>
>  DESCRIPTION = "cameracapture application"
> SECTION = "examples"
> LICENSE = "CLOSED"
> PR = "r0"
>
>  DEPENDS = "opencv"
>
>  SRC_URI = "git://github.com/zafrullahsyed/cameracapture.git
> ;protocol=https;tag=v0.1"
>
>  S = "${WORKDIR}/git"
>  inherit pkgconfig cmake
>
>  I have my source file and CMakeLists.txt as tar on github. tar is not
> getting downloaded.
>
> The tar should be in the "${WORKDIR}/git" directory but it will not work
> as you don't tell bitbake to unpack it.
>
> You repository with tag "v0.1" contains only a README.md!
>
> The common use case is to put all sources into the git repository. Why you
> want to save a tar in a git repository?
>
>
>
>  --> If I remove tar and keep just source file and CMakeLists.txt, then
> also it is not getting downloaded.
>
> Have you check the content of the
> /home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/git
> directory?
>
>
>   I am getting
>
>  CMake Error: The source directory
> "/home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/cameracapture-0.1"
> does not appear to contain CMakeLists.txt.
>
>         ^^^
> Are you sure you have change the S variable? The error still reference the
> common directory ("${WORKDIR}/${PN}-${PV}").
>
>
>  --> I copied my CMakeLists.txt file in ${WORKDIR}/git and tried the
> build, got this following error:
>
>   ERROR: Function failed: do_configure (see
> /home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/temp/log.do_configure.10784
> for further information)
> ERROR: Logfile of failure stored in:
> /home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/temp/log.do_configure.10784
> Log data follows:
> | DEBUG: Executing python function sysroot_cleansstate
> | DEBUG: Python function sysroot_cleansstate finished
> | DEBUG: SITE files ['endian-little', 'bit-32', 'arm-common',
> 'common-linux', 'common-glibc', 'arm-linux', 'arm-linux-gnueabi', 'common']
> | DEBUG: Executing shell function autotools_preconfigure
> | DEBUG: Shell function autotools_preconfigure finished
> | DEBUG: Executing shell function do_configure
> | CMake Error at
> /home/siguser/yocto/build/tmp/sysroots/x86_64-linux/usr/share/cmake-2.8/Modules/CMakeDetermineSystem.cmake:95
> (MESSAGE):
> |   Could not find toolchain file:
> |
> /home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/toolchain.cmake
>
> It looks as something went wrong. Please clear the old package and try
> again or increment the PR number.
> bitbake -c cleansstate cameracapture && bitbake cameracapture
>
>
>   | Call Stack (most recent call first):
>  |   CMakeLists.txt:2 (project)
> |
> |
> | CMake Error: Error required internal CMake variable not set, cmake may
> be not be built correctly.
> | Missing variable is:
> | CMAKE_C_COMPILER_ENV_VAR
> | CMake Error: Error required internal CMake variable not set, cmake may
> be not be built correctly.
> | Missing variable is:
> | CMAKE_C_COMPILER
> | CMake Error: Could not find cmake module
> file:/home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/git/CMakeFiles/CMakeCCompiler.cmake
> | CMake Error: Error required internal CMake variable not set, cmake may
> be not be built correctly.
> | Missing variable is:
> | CMAKE_CXX_COMPILER_ENV_VAR
> | CMake Error: Error required internal CMake variable not set, cmake may
> be not be built correctly.
> | Missing variable is:
> | CMAKE_CXX_COMPILER
> | CMake Error: Could not find cmake module
> file:/home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/git/CMakeFiles/CMakeCXXCompiler.cmake
> | CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
> | CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
> | -- Configuring incomplete, errors occurred!
> | ERROR: Function failed: do_configure (see
> /home/siguser/yocto/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/cameracapture-0.1-r0/temp/log.do_configure.10784
> for further information)
> ERROR: Task 6
> (/home/siguser/yocto/poky/meta-bebot/recipes-bebot/cameracapture/
> cameracapture_0.1.bb, do_configure) failed with exit code '1'
>
>  Do I need to set CXX Compiler in my CMakeLists.txt?
>
> No, this are subsequent errors of the missing toolchain.cmake.
>
>
>  My CmakeLists.txt file:
>
>  cmake_minimum_required(VERSION 2.8)
> project(cameracapture)
> find_package( OpenCV REQUIRED )
> add_executable( cameracapture cameracapture.cpp )
> target_link_libraries( cameracapture ${OpenCV_LIBS} )
>
> This looks okay.
>
>


-- 
Regards,
Zafrullah Syed
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