Adding Bonjour (dns_sd.h) library to Qt in Windows

问题

I've been trying to properly add the open source dns_sd.h library provided by Apple. I am writing a program that uses the BonjourRegistrar class as demonstrated here: link text

I've already written my program on the Mac environment and now I am trying to port it to Windows. The Bonjour SDK comes with several classes, and I am quite confused onto how to correctly add the class to my Qt project. I have tried add the line:

win32:LIBS += c:\dnsssd.lib

in the .pro file with no success. Also, I attempted to add the dns_sd.h and dns_sd.c files into my project and got a couple of errors such as:

'UINT8': does not name a type 'INT8': does not name a type 'UINT16' does not name a type 'INT16' does not name a type

Finally, I am now trying to modify the lib file as described by xcimo in this link link text

I do not know if I am using the correct command to properly modify these files.

回答1:

The .lib distributed by Apple can be used only if you are compiling the Qt application with the MSVC compiler.

Otherwise, like you said, you need a GCC-compatible library (.a). To do that you need to do the following steps:

Run the reimp tool [0] on the .lib: reimp dnssd.lib. A file DLLStub.obj will be generated.
Run the gendef tool [1] on the .dll: gendef dnssd.dll. A file dnssd.def will be generated. The .dll can be obtained from: C:\Windows\System32 if you are using the 32 bit or from C:\Windows\SysWOW64 for the 64 bit version.
Assemble the final .a: dlltool -k -d dnssd.def -l libdnssd.a.
Add the right path int the .pro file, to the newly created library: LIBS += -L"/path/to/the/library/file" -ldnssd

[0] - http://sourceforge.net/projects/mingw/files/MinGW/Extension/mingw-utils/mingw-utils-0.4-1/

[1] - http://sourceforge.net/projects/mingw/files/MinGW/Extension/gendef/gendef-1.0.1346/ - gendef is a better alternative to pexports, because it can convert the stdcall-type libraries from MSVC to the GCC ones, so you can get a proper .def file.

PS: I know the author got it working, but I felt there should be some more detailed instructions on how to get it done -- the information is scattered around the internet.

回答2:

Try adding

DEFINES += _WIN32

to your project file.

回答3:

I figured it out, you need to use reimp and dll tool to modify the lib library to a .a

来源：https://stackoverflow.com/questions/4341179/adding-bonjour-dns-sd-h-library-to-qt-in-windows

标签

windows

bonjour