Qt Creator:如何区分 win32 和 win64 [英] Qt Creator: how to tell win32 from win64

问题描述

我必须在 .pro 文件中做这样的事情:

I have to do something like this in a .pro file:

win32 {
    LIBS += -L../3rdparty/libusb-win32/lib/msvc -llibusb
} else
win64 {
    LIBS += -L../3rdparty/libusb-win32/lib/msvc_x64 -llibusb
}

问题是它不起作用，它总是链接 win32 库.有什么建议吗?

The problem is it doesn't work, it always links win32 library. Any suggestions?

推荐答案

您可以使用 QT_ARCH 变量来检测您的配置是 32 位还是 64 位:

You can use QT_ARCH variable to detect whether your configuration is 32 or 64 :

contains(QT_ARCH, i386) {
    message("32-bit")
}else {
    message("64-bit")
}

当目标是 32 位时，变量返回 i386，如果是 64 位目标，它的值为 x86_64.

When the target is 32-bit, the variable returns i386 and in case of a 64-bit target it has the value of x86_64.

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