Where the path is libQt5DBus.so.5 ?

[The most recent future]

@jsulm
thanks ， it is in qtbase ?
i not found in qtbase. please help me.
thanks 2 jsulm.

[jsulm]

@The-most-recent-future see YOUR_QT_SOURCE/qtbase/src
Or just search for it in your Qt source code directory:

find . -name dbus

[The most recent future]

@jsulm

thanks thanks ,
how to build it. ?
thanks again!

[jsulm]

@The-most-recent-future If you execute

./configure -release -opensource -qt-libpng -qt-zlib -qt-libjpeg -plugin-sql-sqlite -widgets -qt-sql-sqlite -make libs -no-cups -no-nis -no-iconv -no-qml-debug -no-egl -no-opengl -no-icu -no-xcb -no-accessibility -no-javascript-jit -silent -xplatform linux-arm-gnueabi-g++ -arch

and check what it says about DBus - does it activate DBus?

[The most recent future]

@jsulm
if add -dbus option,
occurs error.

[jsulm]

@The-most-recent-future Why don't you post the error?
Most probably you're missing the DBus header files and libs for your target device.

[The most recent future]

@jsulm
like this ??
-dbus -dbus-linked -I/usr/local/arm/dbus-1.9.2/include/dbus-1.0
-I/usr/local/arm/dbus-1.9.2/lib/dbus-1.0/include
-L/usr/local/arm/dbus-1.9.2/lib -ldbus-1 -lpthread -lrt

[jsulm]

@The-most-recent-future configure should actually find the headers/libs by itself if they are installed.
Did you install DBUS headers/libs FOR YOUR TARGET DEVICE?

[The most recent future]

@jsulm
install DBUS headers/libs FOR YOUR TARGET DEVICE

I do not known how to do it. please help me.

make

iling ../3rdparty/double-conversion/bignum-dtoa.cc
compiling ../3rdparty/double-conversion/bignum.cc
compiling ../3rdparty/double-conversion/cached-powers.cc
compiling ../3rdparty/double-conversion/diy-fp.cc
compiling ../3rdparty/double-conversion/double-conversion.cc
compiling ../3rdparty/double-conversion/fast-dtoa.cc
compiling ../3rdparty/double-conversion/fixed-dtoa.cc
compiling ../3rdparty/double-conversion/strtod.cc
compiling qml/qqmlinstruction.cpp
compiling qml/qqmlopenmetaobject.cpp
compiling qml/qqmlvmemetaobject.cpp
compiling qml/qqmlengine.cpp
moc qml/qqmlexpression.h
compiling qml/qqmlproperty.cpp
compiling qml/qqmlcomponent.cpp
compiling qml/qqmlincubator.cpp
compiling qml/qqmlcontext.cpp

so : those file in dbus folder has no built

[jsulm]

@The-most-recent-future It depends on your target device and sysroot. I already asked you about your sysroot - you did not provide an answer. So, what is your sysroot?

[The most recent future]

@jsulm

i do not known what is sysroot.

is this ??
http://blog.csdn.net/yanzi1225627/article/details/7855124

[jsulm]

@The-most-recent-future I cannot read Chinese.
I explained yesterday what a sysroot is.

[The most recent future]

@jsulm
how to do , how to do
crying cryying crying..........

[jsulm]

@The-most-recent-future Crying will not help.
If you want to do something learn how to do it first.
If you want to cross compile then learn how it works.
For cross compilation you need a sysroot.
Here is a description for Raspberry PI: https://wiki.qt.io/RaspberryPi_Beginners_Guide
Does the manufacturer of your device provide something for development?

[The most recent future]

@jsulm
thanks .

[The most recent future]

@jsulm
now , i used dbus-1.2.tar.gz package.
in configure file :
-dbus is success.

[The most recent future]

@jsulm
libQt5Core.so.5.2.0 libQt5Network.so.5.2.0 libQt5ScriptTools.so.5.2.0 libQt5XmlPatterns.prl
libQt5DBus.la libQt5Nfc.la libQt5Sensors.la libQt5XmlPatterns.so
libQt5DBus.prl libQt5Nfc.prl libQt5Sensors.prl libQt5XmlPatterns.so.5
libQt5DBus.so libQt5Nfc.so libQt5Sensors.so libQt5XmlPatterns.so.5.2
libQt5DBus.so.5 libQt5Nfc.so.5 libQt5Sensors.so.5 libQt5XmlPatterns.so.5.2.0
libQt5DBus.so.5.2 libQt5Nfc.so.5.2 libQt5Sensors.so.5.2 libQt5Xml.prl
libQt5DBus.so.5.2.0

[The most recent future]

@jsulm
used this function , the libQtDBus.so can be built by Qt

[jsulm]

@The-most-recent-future Good

[The most recent future]

what is sysroot, i want to know it, now i built qt