FS#55222 - [cuda] gcc -> gcc-5 symlink breaks system in subtle ways

Attached to Project: Community Packages
Opened by Sami Liedes (sliedes) - Monday, 21 August 2017, 16:40 GMT
Last edited by Doug Newgard (Scimmia) - Tuesday, 22 August 2017, 10:47 GMT
Task Type Bug Report
Category Packages
Status Closed
Assigned To Sven-Hendrik Haase (Svenstaro)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

The cuda package installs an /opt/cuda/bin/gcc -> /usr/bin/gcc-5 symlink and adds it to the path so that "gcc" invokes gcc-5. This breaks the system in subtle ways; among other things, makepkg -si will fail for most(?) AUR packages after that, since gcc 5 does not support the -fno-plt flag. (Of course, the C++ ABI will also be different, so linking C++ code would be expected to fail.)

Additional info:

cuda 8.0.61-2

Steps to reproduce:

1. Install cuda
2. Try to build a package, eg. package-query, with makepkg -si
This task depends upon

Closed by  Doug Newgard (Scimmia)
Tuesday, 22 August 2017, 10:47 GMT
Reason for closing:  Not a bug
Comment by Doug Newgard (Scimmia) - Monday, 21 August 2017, 17:49 GMT
cuda appends /opt/cuda/bin to $PATH, so /usr/bin/gcc should be found first unless your $PATH is really screwed up.
Comment by Sami Liedes (sliedes) - Tuesday, 22 August 2017, 08:18 GMT
Ugh, you are right, I had neglected to install base-devel on that computer. My bad!

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