Fwd: nvidia-cuda-dev: Missing folder in LIBRARIES environment variable in /etc/nvcc.profile

[Eyal Rozenberg]

Hello Debian CUDA package maintainers,

FYI - A bug report I've recently filed against Devuan, which is actually 
an issue with the Debian package.

Since I don't know who these emails actually reach - I'd like to ask you 
for an acknowledgement of reception even if you are not disposed to look 
into the matter right now.

Respectfully,
Eyal Rozenberg



-------- Forwarded Message --------
Subject: nvidia-cuda-dev: Missing folder in LIBRARIES environment 
variable in /etc/nvcc.profile
Date: Fri, 27 Dec 2019 11:54:18 +0200
From: Eyal Rozenberg <eyalroz at technion.ac.il>
To: Devuan Bug Tracking System <submit at bugs.devuan.org>

Package: nvidia-cuda-dev
Version: 10.1.105-3+b1
Severity: important

Dear Maintainer,

The NVCC compiler (or rather the nvlink linker) looks for libraries in 
the folder listed in the LIBRARIES environment variable. This 
environment variable is added to from within the nvcc.profile file. In 
Debian/Devuan, that file is located in /etc and contains:

LIBRARIES       =+ $(_SPACE_) -L/usr/lib/x86_64-linux-gnu/stubs

However - that's not the only necessary folder (perhaps not even the 
more important one): nvlink needs to be search /usr/lib/x86_64-linux-gnu 
as well (without the /stubs).

And indeed, if we look at /usr/local/cuda-10.1/bin/nvcc.profile (which 
is also installed for some reason), we find:

LIBRARIES        =+ $(_SPACE_)
"-L$(TOP)/$(_TARGET_DIR_)/lib$(_TARGET_SIZE_)/stubs"
"-L$(TOP)/$(_TARGET_DIR_)/lib$(_TARGET_SIZE_)"

... with both folders.

This is a bug, and it makes nvlink fail to link even simple programs in 
some cases. See, for example:

https://stackoverflow.com/q/59481689/1593077



-- System Information:
Debian Release: 10.0
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.2.0-3-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_IL, LC_CTYPE=en_IL (charmap=UTF-8), LANGUAGE=en_IL:en
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages nvidia-cuda-dev depends on:
ii  libaccinj64-10.1  10.1.105-3+b1
ii  libcublas10       10.1.105-3+b1
ii  libcublaslt10     10.1.105-3+b1
ii  libcudart10.1     10.1.105-3+b1
ii  libcufft10        10.1.105-3+b1
ii  libcufftw10       10.1.105-3+b1
ii  libcuinj64-10.1   10.1.105-3+b1
ii  libcurand10       10.1.105-3+b1
ii  libcusolver10     10.1.105-3+b1
ii  libcusparse10     10.1.105-3+b1
ii  libnppc10         10.1.105-3+b1
ii  libnppial10       10.1.105-3+b1
ii  libnppicc10       10.1.105-3+b1
ii  libnppicom10      10.1.105-3+b1
ii  libnppidei10      10.1.105-3+b1
ii  libnppif10        10.1.105-3+b1
ii  libnppig10        10.1.105-3+b1
ii  libnppim10        10.1.105-3+b1
ii  libnppist10       10.1.105-3+b1
ii  libnppisu10       10.1.105-3+b1
ii  libnppitc10       10.1.105-3+b1
ii  libnpps10         10.1.105-3+b1
ii  libnvblas10       10.1.105-3+b1
ii  libnvgraph10      10.1.105-3+b1
ii  libnvidia-ml1     430.50-1
ii  libnvjpeg10       10.1.105-3+b1
ii  libnvrtc10.1      10.1.105-3+b1
ii  libnvtoolsext1    10.1.105-3+b1
ii  libnvvm3          10.1.105-3+b1
ii  libthrust-dev     1.9.5-1

Versions of packages nvidia-cuda-dev recommends:
ii  libcuda1 [libcuda-10.1-1]    430.50-1
ii  libgl1-mesa-dev [libgl-dev]  19.1.6-1
ii  libnvcuvid1                  430.50-1
ii  libvdpau-dev                 1.2-1

nvidia-cuda-dev suggests no packages.