qt5-qtbase @5.6.2: configure fails due to invalid compiler *clang*

[mndavidoff (Monte Davidoff)]

I get the following error when trying to install qt5-qtbase.

$ sudo port -vs install qt5-qtbase
...
--->  Configuring qt5-qtbase
Error: org.macports.configure for port qt5-qtbase returned: Invalid value for configure.compiler: *clang*

This problem might be related to f892d8b.

[BSeppke (Benjamin Seppke)]

This error occurs for me (MacPorts 2.3.5, Mac OS X Sierra 10.12.2, XCode 8.2 (8C38)) for opencv, too. Seems, that any port with that *clang* setting cannot be build, since that compiler cannot be found.

Since this is more a system than a port dependent issue it should be fixed rather soon and gain high priority.

[dbevans (David B. Evans)]

This error applies to any port using PortGroup qt5. For instance, poppler-qt5 now fails in a similar fashion.

As previously stated, appears to have been introduced by the use of

compiler.whitelist *clang*

in f892d8b.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In e3fe45d3/macports-ports:

qt5: revert f892d8b4fb154a13288741cb6359225e810426e1/macports-ports

Fixes #53105

[jmroot (Joshua Root)]

In d028ea23/macports-ports:

Achieve the intent of f892d8b

Globs can be used in the blacklist, so blacklist all the gccs, which
is the same as whitelisting all the clangs, since those are the only
two kinds of compiler in compiler.fallback.

See: #53105

[RJVB (René Bertin)]

Isn't blacklisting all gcc compilers something that should only be done on 10.9 and up which have sufficient C++11 support in clang?

I know that building with gcc isn't supported officially as a substitute for doing a libc++ conversion, but is that a reason to make it impossible?

[jeremyhu (Jeremy Huddleston Sequoia)]

It's odd that port lint caught that compiler.whitelist clang was not valid but did not catch that compiler.whitelist *clang* was not valid. Any idea why that is?

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In f279d7b5/macports-ports:

qt5: revert f892d8b4fb154a13288741cb6359225e810426e1/macports-ports

Fixes #53105

[jmroot (Joshua Root)]

In 761cbc0b/macports-ports:

Achieve the intent of f892d8b

Globs can be used in the blacklist, so blacklist all the gccs, which
is the same as whitelisting all the clangs, since those are the only
two kinds of compiler in compiler.fallback.

See: #53105