延續上一篇「Build Essential」，
接下來，了解如何搭配「pkg-config」來編譯。
qt5-default
執行
$ apt-cache show qt5-default | grep Depends
顯示
Depends: qtbase5-dev, qtchooser (>= 55-gc9562a1-1~)
qtbase5-dev
執行
$ dpkg -L qtbase5-dev | grep pc
顯示
/usr/include/x86_64-linux-gnu/qt5/QtGui/qpixmapcache.h
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Concurrent.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Core.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5DBus.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Gui.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Network.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5OpenGLExtensions.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5PrintSupport.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Sql.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Test.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Widgets.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Xml.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Core.pc
執行
$ cat /usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Core.pc
顯示
prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include/x86_64-linux-gnu/qt5
host_bins=${prefix}/lib/qt5/bin
qt_config=shared release c++11 c++14 c++1z concurrent dbus reduce_exports reduce_relocations release_tools stl properties animation textcodec big_codecs clock-monotonic codecs textdate datestring doubleconversion eventfd filesystemiterator filesystemwatcher gestures glib itemmodel proxymodel identityproxymodel inotify library mimetype process statemachine regularexpression settings sharedmemory sortfilterproxymodel stringlistmodel systemsemaphore temporaryfile threadsafe-cloexec translation xmlstream xmlstreamreader xmlstreamwriter
Name: Qt5 Core
Description: Qt Core module
Version: 5.9.5
Libs: -lQt5Core
Cflags: -I${includedir}/QtCore -I${includedir}
pkg-config
執行
$ pkg-config --libs Qt5Core
顯示
-lQt5Core
執行
$ pkg-config --cflags Qt5Core
顯示
-I/usr/include/x86_64-linux-gnu/qt5/QtCore -I/usr/include/x86_64-linux-gnu/qt5
執行
$ pkg-config --libs --cflags Qt5Core
顯示
-I/usr/include/x86_64-linux-gnu/qt5/QtCore -I/usr/include/x86_64-linux-gnu/qt5 -lQt5Core
Howto build
Create main.cpp
執行下面指令，產生一個檔案「main.cpp」。
cat > main.cpp << EOF
#include <QtCore>
int main(int argc, char *argv[])
{
return 0;
}
EOF
也就是「main.cpp」的內容如下
#include <QtCore>
int main(int argc, char *argv[])
{
return 0;
}
Compile
執行下面指令編譯
$ g++ -o app main.cpp -fPIC $(pkg-config --libs --cflags Qt5Core)
範例
相關參考
- https://developer.gnome.org/glib/stable/glib-compiling.html
- https://developer.gnome.org/gtk3/stable/gtk-compiling.html
- http://zetcode.com/gui/qt5/introduction/
qmake
接下來，了解如何搭配「qmake」來編譯。