[MacPorts] #61692: gromacs: clang: error: invalid version number in '-mmacosx-version-min=11.0' (was: clang invalid version number)
MacPorts
noreply at macports.org
Sat Nov 28 16:44:03 UTC 2020
#61692: gromacs: clang: error: invalid version number in '-mmacosx-version-
min=11.0'
-------------------------------------+----------------------
Reporter: btywoniuk | Owner: dstrubbe
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.6.4
Resolution: | Keywords: bigsur
Port: gromacs gromacs-plumed |
-------------------------------------+----------------------
Changes (by ryandesign):
* status: new => assigned
* cc: dstrubbe (removed)
* owner: (none) => dstrubbe
* keywords: BigSur; Gromacs; clang; => bigsur
* port: gromacs; gromacs-plumed => gromacs gromacs-plumed
Comment:
The two messages are probably related. The deprecated cxx11 1.1 portgroup
whitelists a number of C++11-compatible compilers, starting with clang
5.0. Whitelisting compatible compilers is not recommended; we recommend
blacklisting incompatible compilers instead. MacPorts will choose the
first whitelisted compiler that is not blacklisted, so even though newer
clang versions are also whitelisted, MacPorts will pick clang 5.0 because
it is the first in the list, even though it is too old for macOS 11.
Usually one would replace the `PortGroup cxx11 1.1` line with
`compiler.cxx_standard 2011` (or whatever version the software requires)
but I am also concerned by these nearby lines:
{{{
# this line is needed to allow use of gcc
configure.cxx_stdlib libstdc++
}}}
We usually don't want to force the use of libstdc++ nor do we usually want
ports to use gcc/g++. The entire codepath that whitelists clang 5.0 is
only entered when libstdc++ is used; it was expected that this would only
occur on very old versions of Mac OS X where clang 5.0 would be
comparatively new and would work fine. The port subverts that assumption
by forcing the use of libstdc++.
--
Ticket URL: <https://trac.macports.org/ticket/61692#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS
More information about the macports-tickets
mailing list