[oe] [meta-qt4] Cmake Could NOT find Qt4, missing: QT_MOC_EXECUTABLE

[Måns Zigher]

Not sure if this is the right way to solve it but since all the recipes
have there own sysroot you need to make sure that the QT_INSTALL_PREFIX is
pointing to the right sysroot it should not point to the qt4-native sysroot
since that might not exist especially if using rm_work.
Create a qt.conf file for your recipe and and then implement a
do_configure_prepand where you set the QT_INSTALL_PREFIX to point to the
recipe sysroot. My ended up looking like this.

[Paths]
Prefix = "@WORKDIR@/recipe-sysroot-native/"
Binaries = "usr/bin"

in do_configure_prepand

do_configure_prepend() {
    sed -i -e 's, at WORKDIR@,${WORKDIR},g' ${WORKDIR}/qt.conf
}

This solved my problem I still couldn't figure out if the qt4-native is
actually broken or if this is the way it should work now that each recipe
have it's own sysroot.

BR
Mans Zigher

2018-02-21 16:49 GMT+01:00 Måns Zigher <mans.zigher at gmail.com>:

> Shouldn't it actually point to sysroot-components? Even if the directory
> would actually exists and containing the moc4 then what if the recipe is
> cleared after building qt4-native it would break. Is the problem that
> qt4-native is actually broken for rocko?
>
> BR
> Mans Zigher
>
> 2018-02-21 15:51 GMT+01:00 Måns Zigher <mans.zigher at gmail.com>:
>
>> After some more investigation I realized that qmake is actually detected
>> correctly the problem is that when running qmake2 -query I get the
>> following results
>>
>> qmake2 -query
>>
>> QT_INSTALL_PREFIX:/home/build/tmp/work/x86_64-linux/qt4-nati
>> ve/4.8.7-r0/recipe-sysroot-native/usr
>>
>>
>> QT_INSTALL_DATA:/home/build/tmp/work/x86_64-linux/qt4-native
>> /4.8.7-r0/recipe-sysroot-native/usr/share/qt4
>>
>>
>> QT_INSTALL_DOCS:/home/build/tmp/work/x86_64-linux/qt4-native
>> /4.8.7-r0/recipe-sysroot-native/usr/share/doc/qt4
>>
>>
>> QT_INSTALL_HEADERS:/home/build/tmp/work/x86_64-linux/qt4-nat
>> ive/4.8.7-r0/recipe-sysroot-native/usr/include/qt4
>>
>>
>> QT_INSTALL_LIBS:/home/build/tmp/work/x86_64-linux/qt4-native
>> /4.8.7-r0/recipe-sysroot-native/usr/lib
>>
>>
>> QT_INSTALL_BINS:/home/build/tmp/work/x86_64-linux/qt4-native
>> /4.8.7-r0/recipe-sysroot-native/usr/bin
>>
>>
>> QT_INSTALL_PLUGINS:/home/build/tmp/work/x86_64-linux/qt4-nat
>> ive/4.8.7-r0/recipe-sysroot-native/usr/lib/qt4/plugins
>>
>>
>> QT_INSTALL_IMPORTS:/home/build/tmp/work/x86_64-linux/qt4-nat
>> ive/4.8.7-r0/recipe-sysroot-native/usr/lib/qt4/imports
>>
>>
>> QT_INSTALL_TRANSLATIONS:/home/build/tmp/work/x86_64-linux/qt
>> 4-native/4.8.7-r0/recipe-sysroot-native/usr/share/qt4/translations
>>
>>
>> QT_INSTALL_CONFIGURATION:/home/build/tmp/work/x86_64-linux/q
>> t4-native/4.8.7-r0/recipe-sysroot-native/etc/qt4
>>
>>
>> QT_INSTALL_EXAMPLES:/home/build/tmp/work/x86_64-linux/qt4-na
>> tive/4.8.7-r0/recipe-sysroot-native/usr/bin/qt4/examples
>>
>>
>> QT_INSTALL_DEMOS:/home/build/tmp/work/x86_64-linux/qt4-nativ
>> e/4.8.7-r0/recipe-sysroot-native/usr/bin/qt4/demos
>>
>>
>> QMAKE_MKSPECS:/home/build/tmp/work/x86_64-linux/qt4-native/4
>> .8.7-r0/recipe-sysroot-native/usr/share/qt4/mkspecs
>>
>>
>> QMAKE_VERSION:2.01a
>> QT_VERSION:4.8.7
>>
>> QT_INSTALL_BINS:/home/build/tmp/work/x86_64-linux/qt4-native
>> /4.8.7-r0/recipe-sysroot-native/usr/bin is a directory that is none
>> existing.
>>
>> BR
>> Mans Zigher
>>
>>
>> 2018-02-21 13:13 GMT+01:00 Måns Zigher <mans.zigher at gmail.com>:
>>
>>> When running devshell I can verify that echo $PATH includes the
>>> recipe-sysroot-native dir and if I run "whereis qmake2" the
>>> recipe-sysroot-native dir appears. So the question remains why is CMake not
>>> detecting the binaries?
>>>
>>> BR
>>> Mans Zigher
>>>
>>> 2018-02-21 13:02 GMT+01:00 Måns Zigher <mans.zigher at gmail.com>:
>>>
>>>> Hi,
>>>>
>>>> I am trying to build a native QT application that is required when
>>>> generating the image. The recipe is depending on qt4-native and i am using
>>>> poky version rocko. The application is using CMake which is producing the
>>>> following error
>>>>
>>>> | -- Looking for Q_WS_MAC - not found
>>>> | CMake Error at recipe-sysroot-native/usr/shar
>>>> e/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:137
>>>> (message):
>>>> |   Could NOT find Qt4 (missing: QT_MOC_EXECUTABLE QT_RCC_EXECUTABLE
>>>> |   QT_UIC_EXECUTABLE) (found version "4.8.7")
>>>> | Call Stack (most recent call first):
>>>> |   recipe-sysroot-native/usr/share/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:377
>>>> (_FPHSA_FAILURE_MESSAGE)
>>>> |   recipe-sysroot-native/usr/share/cmake-3.8/Modules/FindQt4.cmake:1326
>>>> (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
>>>> |   CMakeLists.txt:5 (find_package)
>>>>
>>>> When using jethro the recipe works fine. If I search for qmake2 in the
>>>> build directory we get the following hits
>>>>
>>>> ./tmp/sysroots-components/x86_64/qt4-native/usr/bin/qmake2
>>>> ./tmp/work/x86_64-linux/my-qt-application/0.1-r0/recipe-sysr
>>>> oot-native/usr/bin/qmake2
>>>> ./tmp/work/x86_64-linux/qt4-native/4.8.7-r0/sysroot-destdir/
>>>> home/build/tmp/work/x86_64-linux/qt4-native/4.8.7-r0/recipe-
>>>> sysroot-native/usr/bin/qmake2
>>>>
>>>> I would think that CMake should find qmake2 in the
>>>> recipe-sysroot-native dir. Any help would be appreciated. How can I point
>>>> CMake in the direction so it finds the qt tools.
>>>>
>>>> BR
>>>> Måns Zigher
>>>>
>>>>
>>>
>>
>