Yocto 为QT5应用程序创建配方

我已经挣扎太久了，所以我需要帮助：）

我制作了一个大型QT5.8应用程序，通常当我想用PC编译它时，我只需运行以下命令：qmake-qt=5.9-spec linux-arm-gnueabihf-g++-config configuration_name。 通过这个命令，我可以使用linux-arm-gnueabihf-g++工具链交叉编译armhf体系结构的源代码

但是现在，由于我可以很容易地为我的目标（Raspberry pi）创建一个yocto图像，我想制作一个配方，以便编译我的qt软件并将其放入我的图像中。 目前，我在食谱中完成了以下任务，没有出现错误：

• do_fetch->Yocto从git repo获取源（确定）
• 打开包装->好的

之后，我想执行qmake命令以生成我的makefile，但我的问题是：/

首先，我使用

require recipes-qt/qt5/qt5.inc

然后我尝试了很多东西

将“qmake”写入do\u configure任务无效。我最后尝试的是：“${OE_QMAKE_QMAKE}${S}/my_software.pro-config my_config”，但仍然是相同的错误：

Could not find qmake spec 'linux-oe-g++'

我不知道该做什么，也找不到任何食谱的例子来做我想做的事情。 如果有人已经遇到过这个问题，或者有使用yocto配方编译qt5软件的经验，我希望您的帮助：）

我的食谱：

LICENSE = "CLOSED"
LIC_FILES_CHKSUM = " "
USERNAME = "****"
PASSWORD = "*****"
S = "${WORKDIR}/git"

require recipes-qt/qt5/qt5.inc

do_fetch(){
git clone http://${USERNAME}:${PASSWORD}@gitlab.....  
}

do_configure () {
${OE_QMAKE_QMAKE} ${S}/my_software.pro -config my_config
}

谢谢

简短的回答 长话短说 下面是我如何添加QT项目的示例。它不是在使用git，而是在使用本地文件。然而，为了更进一步，我建议：

• 用我的方式作为测试。将QT项目复制到/yocto/local\u sources/Myproject/ 并通过使用fileextrapaths\u prepend\u（如下所示）让Yocto知道这一点

• 如果这在您的环境中起作用，请根据您的需要调整它（例如，从git而不是本地源代码构建，这是最好的选择。）

这种方法已经过测试，并且对于以后使用qt creator和yocto SDK进行远程调试也很有效。坚持Yocto，最终是值得的

这是我的.bb文件：

#
# Build QT xyz application
#

SUMMARY = "..."
SECTION = "Mysection"
LICENSE = "CLOSED"

#Add whatever you need here
DEPENDS += "qtbase qtmultimedia qtsvg"

#Add here your .pro and all other relevant files (if you use git later this step will be less tedious ...)
SRC_URI += "file://Myproject.pro"
SRC_URI += "file://*.h"
SRC_URI += "file://*.cpp"
SRC_URI += "file://subdir1/*.h"
SRC_URI += "file://subdir1/*.cpp"
SRC_URI += "file://subdir2/*.h"
SRC_URI += "file://subdir2/*.cpp"
SRC_URI += "file://subdir2/subdir3/*.h"
SRC_URI += "file://subdir2/subdir3/*.cpp"

#If you need autostart:
#SRC_URI += "file://myproject.service"

#Register for root file system aggregation
FILES_${PN} += "${bindir}/Myproject"

#RBE todo: both needed ?
FILESEXTRAPATHS_prepend_${PN} := "/yocto/local_sources/Myproject/Src:"
FILESEXTRAPATHS_prepend := "/yocto/local_sources/Myproject/Src:"

S = "${WORKDIR}"

#If you want to auto-start this add:
#SYSTEMD_SERVICE_${PN} = "Myproject.service"

FILES_${PN} = "${datadir} ${bindir} ${systemd_unitdir}"
FILES_${PN}-dbg = "${datadir}/${PN}/.debug"
FILES_${PN}-dev = "/usr/src"

#Check what's needed in your case ...
RDEPENDS_${PN} += "\
    qtmultimedia-qmlplugins \
    qtvirtualkeyboard \
    qtquickcontrols2-qmlplugins \
    gstreamer1.0-libav \
    gstreamer1.0-plugins-base-audioconvert \
    gstreamer1.0-plugins-base-audioresample \
    gstreamer1.0-plugins-base-playback \
    gstreamer1.0-plugins-base-typefindfunctions \
    gstreamer1.0-plugins-base-videoconvert \
    gstreamer1.0-plugins-base-videoscale \
    gstreamer1.0-plugins-base-volume \
    gstreamer1.0-plugins-base-vorbis \
    gstreamer1.0-plugins-good-autodetect \
    gstreamer1.0-plugins-good-matroska \
    gstreamer1.0-plugins-good-ossaudio \
    gstreamer1.0-plugins-good-videofilter \
"

do_install_append () {

    # Install application
    install -d ${D}${bindir}
    install -m 0755 Myproject ${D}${bindir}/

    # Uncomment if you want to autostart this application as a service     
    #install -Dm 0644 ${WORKDIR}/myproject.service ${D}${systemd_system_unitdir}/myproject.service

    # Install resource files (example)
    #install -d ${D}${datadir}/${PN}/Images
    #for f in ${S}/Images/*; do \
    #    install -Dm 0644 $f ${D}${datadir}/${PN}/Images/
    #done
}

#Also inherit "systemd" if you need autostart
inherit qmake5

---

如果您需要指定额外的qamke选项，则不需要覆盖

do\u configure

，请通过

EXTRA\u QMAKEVARS\u PRE='X=Y….'

感谢您的回复，我会这样做。无论如何，即使没有“do_compile”重写，qmake也永远不会执行确保

S

变量指向sourcedir的顶部，默认值可能不正确，因此您可能需要调整配方中的变量，理想情况下，也不需要重写

do_fetch

，您可以简单地使用

SRC_URI=“git://${USERNAME}：${PASSWORD}@gitlab….；protocol=ssh“

然后设置

S=“${WORKDIR}/git”

您还需要设置

SRCREV=“您的repo中的一些git-SHA值”

#
# Build QT xyz application
#

SUMMARY = "..."
SECTION = "Mysection"
LICENSE = "CLOSED"

#Add whatever you need here
DEPENDS += "qtbase qtmultimedia qtsvg"

#Add here your .pro and all other relevant files (if you use git later this step will be less tedious ...)
SRC_URI += "file://Myproject.pro"
SRC_URI += "file://*.h"
SRC_URI += "file://*.cpp"
SRC_URI += "file://subdir1/*.h"
SRC_URI += "file://subdir1/*.cpp"
SRC_URI += "file://subdir2/*.h"
SRC_URI += "file://subdir2/*.cpp"
SRC_URI += "file://subdir2/subdir3/*.h"
SRC_URI += "file://subdir2/subdir3/*.cpp"

#If you need autostart:
#SRC_URI += "file://myproject.service"

#Register for root file system aggregation
FILES_${PN} += "${bindir}/Myproject"

#RBE todo: both needed ?
FILESEXTRAPATHS_prepend_${PN} := "/yocto/local_sources/Myproject/Src:"
FILESEXTRAPATHS_prepend := "/yocto/local_sources/Myproject/Src:"

S = "${WORKDIR}"

#If you want to auto-start this add:
#SYSTEMD_SERVICE_${PN} = "Myproject.service"

FILES_${PN} = "${datadir} ${bindir} ${systemd_unitdir}"
FILES_${PN}-dbg = "${datadir}/${PN}/.debug"
FILES_${PN}-dev = "/usr/src"

#Check what's needed in your case ...
RDEPENDS_${PN} += "\
    qtmultimedia-qmlplugins \
    qtvirtualkeyboard \
    qtquickcontrols2-qmlplugins \
    gstreamer1.0-libav \
    gstreamer1.0-plugins-base-audioconvert \
    gstreamer1.0-plugins-base-audioresample \
    gstreamer1.0-plugins-base-playback \
    gstreamer1.0-plugins-base-typefindfunctions \
    gstreamer1.0-plugins-base-videoconvert \
    gstreamer1.0-plugins-base-videoscale \
    gstreamer1.0-plugins-base-volume \
    gstreamer1.0-plugins-base-vorbis \
    gstreamer1.0-plugins-good-autodetect \
    gstreamer1.0-plugins-good-matroska \
    gstreamer1.0-plugins-good-ossaudio \
    gstreamer1.0-plugins-good-videofilter \
"

do_install_append () {

    # Install application
    install -d ${D}${bindir}
    install -m 0755 Myproject ${D}${bindir}/

    # Uncomment if you want to autostart this application as a service     
    #install -Dm 0644 ${WORKDIR}/myproject.service ${D}${systemd_system_unitdir}/myproject.service

    # Install resource files (example)
    #install -d ${D}${datadir}/${PN}/Images
    #for f in ${S}/Images/*; do \
    #    install -Dm 0644 $f ${D}${datadir}/${PN}/Images/
    #done
}

#Also inherit "systemd" if you need autostart
inherit qmake5