Can't emerge qemu [SOLVED]

mike934 · Posted: Sat Aug 25, 2007 2:54 pm Post subject: Can't emerge qemu [SOLVED]

I want to install qemu but emerging it results in errors:

didymos · Posted: Sat Aug 25, 2007 3:44 pm Post subject:

Maybe try using a gcc that's not quite so old?
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Thomas S. Howard

Genone · Posted: Sat Aug 25, 2007 4:02 pm Post subject:

mike934 · Posted: Sat Aug 25, 2007 4:36 pm Post subject:

Genone · Posted: Sat Aug 25, 2007 4:56 pm Post subject:

According to Google that error is usually caused by building qemu with gcc-4, so might be worth checking `gcc --version` to make sure that gcc-3 is really selected. On one wiki there was also the suggestion to not use any CFLAGS to avoid that error.

drwook · Veteran Joined: 30 Mar 2005 Posts: 1313 Location: London

did you source /etc/profile after changing compiler?

mike934 · Posted: Sat Aug 25, 2007 5:51 pm Post subject:

mike934 · Posted: Sat Aug 25, 2007 5:52 pm Post subject:

saboya · Posted: Sat Aug 25, 2007 6:45 pm Post subject:

The error you experienced using gcc-3.4.6 I did too, I switched to 3.3.6 and it worked, which means the problem is probably in your setup.

mike934 · Posted: Sat Aug 25, 2007 7:00 pm Post subject:

mike934 · Posted: Sat Aug 25, 2007 7:37 pm Post subject: Can't emerge qemu [SOLVED]

mightymephisto · n00b Joined: 19 Dec 2005 Posts: 9

I know this is marked as solved, but I have managed to get qemu to compile with gcc4 with the thanks of this patch

http://www.kju-app.org/proj/browser/trunk/patches/qemu-0.9.0-gcc4.patch?format=txt

Copied /usr/portage/app-emulation/qemu-softmmu into my portage overlay
Downloaded patch into files directory
Added epatch "${FILESDIR}"/qemu-0.9.0-gcc4.patch after the cd ${S} in the ebuild src_unpack
Comment out all of pkg_setup

drwook · Veteran Joined: 30 Mar 2005 Posts: 1313 Location: London

ecks · n00b Joined: 27 Feb 2007 Posts: 64

I tried the patch and unfortunately it failed to build for me. What version of gcc did you use? I have gcc-4.1.2, maybe it worked under gcc-4.2.2. I have my build.log at http://www.pastebin.ca/743966.

mightymephisto · n00b Joined: 19 Dec 2005 Posts: 9

Yes it was under gcc 4.2.2

xPosiMattx · n00b Joined: 13 Jul 2004 Posts: 9

Has anyone had any luck with this recently? It seems that gcc 3.3.6 is masked to use no keywords at this point due to compilation problems / changes in bison, etc. Using i686-pc-linux-gnu-3.4.6, `CFLAGS="" emerge -av qemu` exits with:

Maf · Posted: Thu Jan 03, 2008 1:52 am Post subject:

Guys, it this really so hard to fix this shitty qemu package to work correctly with gcc4? Did anyone looked at the source?
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got gentoo?

xPosiMattx · n00b Joined: 13 Jul 2004 Posts: 9

I found a patch to compile qemu-0.8.0 with gcc4 at http://gwenole.beauchesne.info/projects/qemu/. I updated this to apply cleanly with the patches already in portage against 0.8.2 and made ebuilds for all of this. With this setup I got qemu-0.8.2 to compile with gcc-4.1.2. You can get all of these files at http://mattfarmer.net/blog/wp-content/uploads/2008/01/qemu-082-gentoo-ebuild-files-and-gcc4-patch.tgz (with a few more details at http://mattfarmer.net/projects/qemu/).

Maf · Posted: Thu Jan 03, 2008 7:17 pm Post subject:

xPosiMattx · n00b Joined: 13 Jul 2004 Posts: 9

saber850 · Tux's lil' helper Joined: 21 Mar 2004 Posts: 103

Yes, I'm also hitting this problem w/ gcc-3.4.
I had to unmask gcc-3.3 just to compile it.

Seems a bit disappointing that qemu builds w/ gcc 3.3 but not 3.4. And I agree w/ Maf regarding 4.0 support.

Otherwise QEMU is awesome!

Maf · Posted: Sat Jan 05, 2008 12:13 pm Post subject:

My_World · Posted: Sun Jan 13, 2008 8:27 pm Post subject:

saber850 · Tux's lil' helper Joined: 21 Mar 2004 Posts: 103

FWIW, I came across a couple sites which noted that there were instances of qemu compiling w/ gcc4, but not necessarily running (correctly).
I'd post URLs, but it was too long ago (couple months).