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Bug 453332 - >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 depends on <sys-devel/gcc-4.7
Summary: >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 depends on <sys-devel/gcc-4.7
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Development (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Justin Lecher (RETIRED)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-01-21 13:30 UTC by Ulenrich
Modified: 2013-01-22 17:57 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Ulenrich 2013-01-21 13:30:32 UTC
Is it intended to exlude gcc-4.7 from building nvidia-cuda-toolkit ?
I don't find the hint about this in the bugs.

I am stuck at dev-util/nvidia-cuda-toolkit-4.2
because of this ...

Is there a plan to unmask gcc-4.7.x in the future?
I am using this compiler for two months now without issues - but these alike.
Comment 1 Jeroen Roovers (RETIRED) gentoo-dev 2013-01-21 20:17:41 UTC
Try setting USE=multislot for sys-devel/gcc. Otherwise, this bug looks invalid: you're not stuck at all and the deps are probably correct.
Comment 2 Christoph Junghans (RETIRED) gentoo-dev 2013-01-21 20:23:25 UTC
dev-util/nvidia-cuda-toolkit is a binary package so we can not do much about its dependencies. 

My guess is that dev-util/nvidia-cuda-toolkit-5* will work with gcc:4.7, however as gcc:4.7 is not even unmasked yet, I would leave this bug open for later.
Comment 3 Ulenrich 2013-01-22 00:06:43 UTC
@Christoph,
it installs using gcc-4.7.2 (without multi-gcc), but this message appears:

* Messages for package dev-util/nvidia-cuda-toolkit-5.0.35-r1:

 * gcc >=  will not work with CUDA
 * Make sure you set an earlier version of gcc with gcc-config
 * or append --compiler-bindir= pointing to a gcc bindir like
 * /usr/*pc-linux-gnu/gcc-bin/gcc
 * to the nvcc compiler flags
>>> Auto-cleaning packages...

Wanting to have another gcc to work with?
Comment 4 Christoph Junghans (RETIRED) gentoo-dev 2013-01-22 00:25:07 UTC
This warning is a sanity check by us.

Edit your /usr/bin/cuda-config, so that it support gcc:4.7 by adding 4.7 to  SUPPORT_GCC_VERSIONS_BY_CUDA. And then emerge a package depending using cuda to see if it actually works.

@Justin: It seems the warning should use ${a[0]} and not ${a[1]}. Are you a fortran guy? ;-)
Comment 5 Justin Lecher (RETIRED) gentoo-dev 2013-01-22 17:57:47 UTC
There was some bad logic mistake in that section.

+*nvidia-cuda-toolkit-5.0.35-r2 (22 Jan 2013)
+*nvidia-cuda-toolkit-4.2.9-r2 (22 Jan 2013)
+
+  22 Jan 2013; Justin Lecher <jlec@gentoo.org>
+  +nvidia-cuda-toolkit-4.2.9-r2.ebuild, +nvidia-cuda-toolkit-5.0.35-r2.ebuild:
+  Correct postinst msg logic; fine grade deletion of files
+