Re: [Qemu-devel] NSIS - including DLL dependencies for Windows

[Adam Baxter]

My extremely embarassing script for getting the DLLs is as follows,
but at least it avoids a WINE dependency:

STAGING=/tmp/myqemu/
make install prefix=$STAGING
#todo: probably better to walk these dependencies in a loop, and not
use grep (but seriously, where's the mingw dumpbin)
FIRST=$(strings $STAGING/*.exe | grep '\.dll' | sort -u | xargs -I{}
readlink -e /usr/x86_64-w64-mingw32/sys-root/mingw/bin/{})
SECOND=$(for d in $FIRST; do strings $d | grep '\.dll' | sort -u |
xargs -I{} readlink -e /usr/x86_64-w64-mingw32/sys-root/mingw/bin/{};
done)
THIRD=$(for d in $SECOND; do strings $d | grep '\.dll' | sort -u |
xargs -I{} readlink -e /usr/x86_64-w64-mingw32/sys-root/mingw/bin/{};
done)
echo $FIRST $SECOND $THIRD | sed 's/ /\n/g' | sort -u | xargs -I{} cp
-v {} $STAGING

--Adam

On Thu, 31 Jan 2019 at 21:49, Daniel P. Berrangé <address@hidden> wrote:
>
> On Thu, Jan 31, 2019 at 02:45:13PM +1100, Adam Baxter wrote:
> > Hi,
> > How do I gather and include the required DLLs (SDL, zlib etc) in the NSIS
> > installer? (and also in a standalone build to be zipped up, but that's less
> > important)
> >
> > I noticed the wiki doesn't really mention bundling dependencies anywhere.
> >
> > The official unofficial windows builds are documented at
> > https://qemu.weilnetz.de/FAQ but this doesn't cover building the actual
> > installer.
>
> Yeah, this is a pretty major ommision in QEMU's build rules for the NSIS
> installer making it pretty much useless as is. We really need to expand
> it so that it can resolve the dlls that qemu .exe's need, locate them
> on the host and bundle them into the installer automatically.
>
> It seems we can get a list of deps for an .exe using
>
> $ winedump  -j import /path/to/binary.exe  | grep offset | grep dll | awk 
> '{print $3}'
>
> We would need to run that for each .exe we're bundling. I think we might
> need to also then run that recursively for each .dll to get the transitive
> set of required dlls.
>
> Even this is not entirely satisfactory though, as it is blindly assuming
> that the only thing we need in the QEMU installer is the dlls themselves.
> GTK at least has other resources used at runtime besides the dll that
> should be bundled.
>
> This kind of problem is why the GNOME project created the msitools project
> for creating .msi installers, to relpace nsis. With msitools there is a
> metadata file for each package listing all the files that need it needs
> to have bundled into an installer:
>
>   https://gitlab.gnome.org/GNOME/msitools/tree/master/data/wixl
>
> This is not without its own downsides though. It bundles all the .wxi
> files itself, with their content based on current mingw packages present
> in the most recent Fedora release. This means it won't work on any other
> distro :-(
>
> Regards,
> Daniel
> --
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