Re: [Mingw-cross-env-list] About the DBUS package

[Mark Brand]

On 01/20/2011 04:46 AM, René Berber wrote:
> Hello again,
>
> I just tested a Qt application that uses DBUS, this application I have
> been building with my own build of DBUS so the main change is that now
> I'm using the one with the cross-development environment, plus Qt has
> been rebuild, here the difference is that I used to build Qt with the
> configure parameter -dbus, the new qt.mk file uses -dbus-linked (and
> this is actually what I wanted to test).
>
> There are 2 differences, and a problem in the result:
>
>   * The problem: the application (statically linked) still depends on the
> dynamic library, which is not produced by dbus.mk.
>
>   * Diff.1: my Qt build produces a dependency to dbus-1.dll, the new Qt
> build produces one to libdbus-1-3.dll;
>
>   * Diff.2: with my Qt build the library doesn't show as a dynamic
> dependency, with the new one it does (so its better).
>
> Of course the only important point is the problem, the library is not
> build and/or not installed.
>
> The use of the non-static library was not intended, so that is another
> problem, but as I commented on an earlier message, I think this is the
> way Qt is "designed", it never uses the static library.  I'm not using
> anything explicit on Qt to pull static or dynamic libraries, its as
> simple as (application.pro):
>
> CONFIG += qt qdbus thread debug link_pkgconfig
> PKGCONFIG = fontconfig libcurl openssl dbus-1 libevent
> win32:DEFINES += QT_DBUS
>
> The only possible suspect is usr/i686-pc-mingw32/lib/pkgconfig/dbus-1.pc
> which was changed when I make(d) dbus, actually I just noticed that it
> is a newer version than the one I was using last, and the relevant part
> doesn't have anything to change the type of library:
>
> Version: 1.4.1
> Libs: -L${libdir} -ldbus-1  -lws2_32
> Cflags: -I${includedir}/dbus-1.0 -I${libdir}/dbus-1.0/include

Hi René,

I'm not convinced yet that there is a dependency on dbus-1.dll in
mingw-cross-env. For one thing, the procedure here works for me
without any DLL: http://pastebin.com/1nLqpDrB.

Also, usr/i686-pc-mingw32/bin/qdbusviewer.exe runs fine without any DLL.

In an earlier post you mentioned PKGCONFIG in your .pro file:

        "PKGCONFIG = fontconfig libcurl openssl dbus-1 libevent"

I wonder if that, perhaps in combination with the wrong pkg-config,
is causing the problem. You shouldn't need dbus-1 in PKGCONFIG since it's
already in usr/i686-pc-mingw32/lib/QtDBus.prl:QMAKE_PRL_LIBS.

Are you sure you're not invoking plain "pkg-config" somewhere instead of
i686-pc-mingw32-pkg-config? Qmake should be using i686-pc-mingw32-pkg-config
as well thanks to:

usr/i686-pc-mingw32/mkspecs/unsupported/win32-g++-cross/qmake.conf 
100:PKG_CONFIG          = i686-pc-mingw32-pkg-config

and

usr/i686-pc-mingw32/mkspecs/features/link_pkgconfig.prf


Mark