qmake 生成的 Makefile 中缺少 QtWebKit 依赖项
我刚刚开始使用 Qt（C++），所以我遵循了我在网上找到的“hello, world”示例。我在 hello 目录中创建了程序 hello.cpp：
#include <QtGui>
int main(int argc, char *argv[]) {
QApplication app (argc, argv);
QLabel label ("Hello, world!");
label.show();
return app.exec();
}
我运行：
qmake -project
qmake hello.pro
make
并且所有内容都正确编译，并且我能够运行 ./hello。然后，作为一个喜欢冒险的人，我尝试修改该文件：
#include <QtGui>
#include <QtWebKit>
int main(int argc, char *argv[]) {
QApplication app (argc, argv);
QLabel label ("Hello, world!");
QWebPage page;
label.show();
return app.exec();
}
我重新运行了三个命令，但是现在当我运行 make 时，出现以下错误：
hello.cpp:2: fatal error: QtWebKit: No such file or directory
compilation terminated.
make: *** [hello.o] Error 1
我检查了 Makefile，并且 INCPATH 变量被定义为
INCPATH = -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -I.
它明显缺少 -I/ usr/include/qt4/QtWebKit.conf LIBS 变量也缺少 -lQtWebKit。手动添加这些会使编译成功。我做错了什么？我需要添加什么才能使 qmake 生成正确的 Makefile？
I just started working with Qt (in C++), so I followed a "hello, world" example I found online. I created the program hello.cpp in the directory hello:
#include <QtGui>
int main(int argc, char *argv[]) {
QApplication app (argc, argv);
QLabel label ("Hello, world!");
label.show();
return app.exec();
}
I ran:
qmake -project
qmake hello.pro
make
and everything compiled correctly and I was able to run ./hello. Then, being an adventurous person, I tried modifying the file:
#include <QtGui>
#include <QtWebKit>
int main(int argc, char *argv[]) {
QApplication app (argc, argv);
QLabel label ("Hello, world!");
QWebPage page;
label.show();
return app.exec();
}
I reran the three commands, but now when I run make I get the following error:
hello.cpp:2: fatal error: QtWebKit: No such file or directory
compilation terminated.
make: *** [hello.o] Error 1
I checked out the Makefile and the INCPATH variable was defined as
INCPATH = -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -I.
It is noticeably missing -I/usr/include/qt4/QtWebKit. The LIBS variable was also missing -lQtWebKit. Adding these manually causes the compilation to succeed. What am I doing wrong? What do I need to add to make qmake generate the correct Makefile?
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您需要将：添加
到您的
.pro文件中，然后重新运行 qmake。qmake -project不会尝试猜测代码中需要哪些模块。如果您有多个模块，通常的语法如下：
You need to add:
to your
.profile, and re-run qmake.qmake -projectdoes not try to guess what modules you need in your code.If you have more than one module, the usual syntax is like: